Fuel Injected 454 Mpg

I am looking for ways to improve mpg on my 74 Sprint with following spec's; 454 bbc Holley hi rise Edlebrock 1406 carb 2. Overhead Valve. There are many others that will do the same thing but the 1227747 is most well known and documented and will be the basis for this article. ready to install. In theory the v-10 should be more fuel efficient. The 1996-2000 L29 7. 9 mpg with the 454. 0L so a 454 would have to get somehwere in the neighborhood of 7-9mpg. I don't want to assume that an EFI would be a magic fix. It was a solid 6 mpg from the day it was bought new. There's an old adage that nothing new pertaining to the internal combustion engine has been invented since 1948. The O-rings operate under high pressure, and can dry out and fail over time. the worst i got was 10 mpg towing a 4000 lb trailer. Description: Since 1987, Whipple Superchargers have been the pioneers and leaders of twin-screw supercharging. Any thoughts?. Firstly, the database only goes back to 1984 so the big-block muscle cars and 500 cubic-inch Cadillac Eldorados are missing from. I was hoping to be able to drive it back and forth to the deer lease (150. Contributed By: Enginebasics. The fuel injected version of the 283 in 1957 that was used in the Corvette produced an amazing 1 horsepower per cubic inch which was almost unheard of at the time coming from a factory built engine. But you can replace these with the Multiport Flexible Injection system conversion that the 7. Going 65-70 most of the way with a 3. 2021: Author: oshidara. fuel economy test results for automobiles and light-duty trucks gas mileage guide for barrel carburetor or fuel injection). 7 small block Chevy with TBI (throttle body injected) EFI system and swirl port heads. 4L Smog Delete. Unfortunately, the fuel-injected engine sucked down a gallon of gas for every 10 or 11 miles driven!. The port fuel injection system was selected to retrofit a currently used gasoline injection engine. Call Bayou Classics and Customs about 1964 Chevrolet C10 Shortbed 454 HO Fuel injected. 3 Year warranty covers the following internal Rotating Parts, Crankshaft, Camshaft, timing chain, Connecting rods, Pistons, Piston Pins, Oil Pump Rocker Arms, Valve Lifters, Cylinder heads, block. About Mpg 454 Injected Fuel. [Subject] could a MPFI/TPI 454 get 26mpg highway? [Question] with tall gearing, a tune for MPG, and an S/C with a low overlap cam/miller cycle cam spec (leaves intake valves open for 10-15% of the compression stroke to increase efficiency). Windshield Wipers Work. 454 GEAR RATIOS (OVERALL) 3RD 4. FiTech 31004 Go EFI 4 600 HP System, Power Adder. Chevy CK Pickup 7. 4L 1994, GM Original Equipment™ Throttle Body Idle Air Control Motor by ACDelco®. Consequently, CNG fuel was injected into the intake manifold by an independent gaseous injector and controlled by a second electric controller through the original gasoline injection signal. Over at the Suburban forum many with big blocks report 13-14-15 MPG on a "regular" basis. no use in mpg with a 454 IMO. The longer this goes on, the worse it gets. City driving not so much, maybe 10 mpg. I am building my 72 with the intention of getting it in the mid 20 mpg range with a fuel injected 454, 4L80 and 3. Has this been everyone else's experience?. Always check to insure that you have the proper fuel pressure. There's an old adage that nothing new pertaining to the internal combustion engine has been invented since 1948. I have a 1992 Chevy Dually with a 454. Also known as the Vortec 7400 (7. Fits: 1998-2001 MerCruiser 7. Search by Manufacturer. With 92,788 Original Miles. With your set up you are not running a Big Block in its most effiecient rpm range you are more in its power range for towing. After shutdown, crankcase vapors rise to the top of the engine and settle on the intake valves; where they condense and harden. 7 Liters, 8 Cylinders, 4 Speeds, Automatic Transmission MPG City MPG: 15 MPG (U. 43mph wot on the gps on. In my ponderings for a new 4x4, I keep considering chevy trucks from the 70's or early 80's, whether it is a truck or a blazer or suburban, with a 350 smallblock. You will use a certain ammount of energy to go a certain speed on any given boat. Any thoughts?. Fuel injection can help improve the fuel efficiency and performance of older carbureted engines. What they said. A 350 chevy should burn the same ammount of fuel as a 454 big block for a given weight and speed. and I go to restart it I have to hold the accelerator pedal all the way to. 21' Boat does 64 MPH (gps) with just me in it at about 4900 RPMS with a 23P prop. Note that this is a 20% improvement over another proven form of fuel injection. The Engine's Fuel Requirements. If an engine is running rough, has an irregular idle, and a lack of power on acceleration, don’t dismiss the fuel system as a possible cause. These are design decisions made by the manufacturer. Nothing is going to help that fuel mileage more than. 10 rear gear. GM says the stock ECM will work, but a custom tune will give more hp and torque. Includes Billet Pulleys and Alternator. I know there many factors that influence MPG. Unfortunately, the fuel-injected engine sucked down a gallon of gas for every 10 or 11 miles driven!. A 350 chevy should burn the same ammount of fuel as a 454 big block for a given weight and speed. Good fuel economy is a direct result of the fine-tuning performed on the EFI system. Mercury MERCRUISER 350 454 496 502 magnum MPI Fuel REGULATOR 861126A 1 NR-1. and I go to restart it I have to hold the accelerator pedal all the way to. Note that this is a 20% improvement over another proven form of fuel injection. 4L, Regular Production Option designation L29), Chevrolet's Vortec 454 was a modern-day evolution of the company's most legendary big block. Engine Assembly, Crate Engine, Remanufactured, Chevy, Big Block, 454, 7. I would say it is in driver's condition. So, I'm wondering if anyone has seen real world MPG improvements with these systems, and what numbers you have seen. I was told that I could get around 15 mpg if I drive it nice. There's an old adage that nothing new pertaining to the internal combustion engine has been invented since 1948. The reason being that both like a different amount of fuel to air ratios for the engine to run properly, make good power, and be reliable. boat-fuel-economy. All of our turn-key drop in ready crate engines include a custom engine harness and ECM that can be built. I have a 1992 Chevy Dually with a 454. Automatic. Swap 350 for 454 what need to be done. Fuel Injection Systems, Downdraft and EZ-EFI 2. About Tbi Years 454. The TSP 454 CID 700 HP LSx Turn-Key Package will have an aggressive idle and will require a minimum 2,800 RPM stall speed torque converter. Locks Work. The 454 is a big-block carbureted engine found in most older model Chevrolet cars and trucks. it: Years Tbi 454. Its a direct true bolt in for 96 to 99 Siverados. 2021: Author: oshidara. Fuel Injection with Stainless Steel Fuel Rail. Gas Mileage of the carbureted vs. The combination of larger bore and eight cylinders equates to very poor gas mileage. Fuel Economy Engine HP Idle 1000 1500 2000 2500 3000 3500 4000 4500 4800 WOT MerCruiser 3. I haven't checked it myself yet, but I think he said it's up to around 8 or 9 mpg now. Injected Mpg 454 Fuel. The Chevy 454 first hit the market in the 1970s. high-powered gasoline Marine engines with improved fuel economy in the works. Text Email Facebook. hell swapping to a gm stock fuel injection system is too spendy and PITA for me. 5 inches Hg (Standard Engine) 24° @ 13. The CNG injection system was set up as long as the. The 454 engine, as compared to the 427 it replaces, has a longer stroke (101. A motorhome fitted with a hydrogen injection system, will experience 20% to 50% better gas mileage and works with either diesel or gasoline engines. 1L Vortec V-8 specs, history, and horsepower and torque curves. Our 94 Allegro Bay 37' with 454 got around 7-7. Fuel Injection: Manufacturer Rochester Products Model 7017320 (Code 579) 7017310 (Code 579D, Special Camshaft) Recommended Fuel Premium Fuel Pump Mechanical Fuel Pressure 5 ¼ - 6 ½ PSI Inlet Manifold Cast Aluminum Air Cleaner Type Dry Air Meter Location Engine Left Side. Fuel Injected. 4 MPG is often enough to claim, but not often enough to be "regular". In most cases, even though they have all the advantages of a fuel injected engine, such as the ability to run at extreme angles, they rely on mechanical injection which is considerably simpler than electonic injection. AOD Transmission conversion package. Surging and bucking under various throttle loads. Figure 3 shows normally running wherein oxygen, MAP, coolant temperature and engine rpm are monitored and injection pulses are then sent to the TBI. Chevy began installing 454 V-8s in its trucks in 1973. In 1996, Chevrolet added Vortec heads to their 5. 1, Allison transmission, 4×4, 105,000 miles I may consider selling. ) 12 L/100km 8 km/liter 23 MPG (Imperial) Vehicle. Additionally, we did before-and-after fuel economy testing (over the same 125-mile test loop) and realized a. Arctic Cat’s 2014 Dual-Stage Fuel Injection. A fuel injector flush can really help your gas mileage as clogged fuel injectors can cause a lot of problems. Considering it is fuel injected it should be doing better as well. We had about four tanks that hit 9. I have never known anyone that has a 454 or a 460 to get better than 12mpg, and even then I think the actual milage is more like 10mpg. The CNG injection system was set up as long as the. it: Years Tbi 454. Beyond that, there are a handful of variants that feature different horsepower, torque, and even fuel management. 4 and Volvo Penta and all other motors using the Rochester injectors stamped with 25180245. There are many others that will do the same thing but the 1227747 is most well known and documented and will be the basis for this article. 4 L 454 MPI 310 HP Fuel Consumption. 5 lbs lighter than the former 600 Suzuki two-stroke engine. All The Lights Work. We took our first long road trip just before Christmas in our 1995 warrior 23. 2 seconds while the quarter-mile time cut 2/10ths to 15. Just thought that was interesting. The longer this goes on, the worse it gets. 14 is about what i average. Fuel injection can help improve the fuel efficiency and performance of older carbureted engines. Chevy CK Pickup 7. After installing the EZ-EFI, the truck produced 366. However, it is the most efficient operating point for the catalytic converter. AFR, you will note that as the AFR gets leaner,. The fuel injected version of the 283 in 1957 that was used in the Corvette produced an amazing 1 horsepower per cubic inch which was almost unheard of at the time coming from a factory built engine. What they said. Fuel Injection with Stainless Steel Fuel Rail. FiTech Fuel Injection reserves the right to refuse or cancel any such orders whether or not the order has been confirmed and your credit card charged. One for N/A vehicles and one for boosted vehicles. Engine Factory 347 Ford Stroker Trucks TV. Fuel injection, because it can be more precisely controlled, results in more efficient use of fuel, reduced fuel consumption and fewer emissions, which is the main reason it began to replace the. fuel injected: 1preacherman: YJ Wrangler Technical Forum: 4: 09-09-2009 08:33 PM: when did they make jeep fuel injected: scott2001: TJ Wrangler Technical Forum: 1: 08-18-2009 02:26 AM: fuel injected yj: nj tj: YJ Wrangler Technical Forum: 2: 02-09-2009 11:03 AM: Dead 94 Jeep Wrangler Fuel Injected: goneflyn: YJ Wrangler Technical Forum: 1: 04. Mercury MERCRUISER 350 454 496 502 magnum MPI Fuel REGULATOR 861126A 1 NR-1. NOTE - I've found the following EFI tables to be the most significant areas for improving fuel economy: Target Air/Fuel Ratio Table (too rich in cruising area). Shop 350 Chevy Small Block V8 Fuel Injection Systems and get Free Shipping on orders over $99 at Speedway Motors, the Racing and Rodding Specialists. In theory the v-10 should be more fuel efficient. Remanufactured Long Block Crate Engines. Much more dependable and durable than the 6. With a total of 82 BHP, the naturally aspirated 1. 0 GPH | GPH US Gallons per hour. The L18 (496 in³/8. You ar looking at anywhere from 6-10 MPG depending on driving style, wind conditions against or behind, hills or flat ground and whether you are towing. high-powered gasoline Marine engines with improved fuel economy in the works. Become a Preferred Vendor. Boat has a 454 with an 800 DP, truck a 460 with a 750 DP. About 250 miles one way. Buy FITech Fuel Injection 70011 at JEGS: FITech Fuel Injection Ultimate LS EFI Induction System LS3/L92 500HP. you could find a stock gm efi system (intake, TB, ecu) from a 454 in a junk yard. There are many others that will do the same thing but the 1227747 is most well known and documented and will be the basis for this article. Another fuel system was introduced in 1992 called Central Port Injection (CPI) and appeared first on the 4. You will use a certain ammount of energy to go a certain speed on any given boat. Many times in which such a scenario is present, the fuel system isn’t suspect since it’s getting fuel pressure and running. So, essentially the throttle body's purpose is one of the most crucial in the continued functioning of your engine. ) 9 L/100km 11 km/liter 31 MPG (Imperial) Combined MPG: 19 MPG (U. Re-manufactured Bosch Fuel Injector set of 8. I think that it is a 496 Vortec engine, if not mistaken. About Mpg 454 Injected Fuel. 90 and older is particularly bad and that is largely due to NO OVERDRIVE. The 283 was an improved design over the Chevy 265 in that the bottom end crankshaft and pistons were much more reliable because of the increased. 73 posi rear. Injected Mpg 454 Fuel. 5 seconds and on to a maximum speed of 124 mph. Follow us on Facebook and Instagram. #9 · Jun 16, 2012. This is because diesel fuel motorhomes get better gas mileage than gas ones do! Diesel fuel actually provides around 10%-15% more energy than normal gasoline does which helps make it more fuel efficient. Our 28 Top Selling Engines. Megasquirt efi is a DYI system. If you're thinking big block, go with the 496 8. 5" Suspension Lift. If you are looking at a 1996 - 2000, then the fuel injection systems are different between the 5. Fuel pressure and volume are vitally important for efficient engine operation on fuel injected engines. 385 Ft-Lbs @ 1600 RPM. Over at the Suburban forum many with big blocks report 13-14-15 MPG on a "regular" basis. 5-liter four-cylinder engine runs on regular, the. Now, my goal is to achieve 12 mpg while also getting better engine starts and engine life from the benefits of fuel injection. Swap 350 for 454 what need to be done. The LSX 454 crate engine is a 21st-century upgrade to the legendary Chevy 454 big block race engine. Automatic. Fuel pressure should be a constant 10 - 15 PSI on a TBI fuel injection system and is typically around 12 - 13 psi. Responsive throttle with Just the right amount of claissic Thump Idle sound. This is not necessarily true. 8 V6, 700-R4 transmission, and 3. FiTech Fuel Injection reserves the right to refuse or cancel any such orders whether or not the order has been confirmed and your credit card charged. Description: Since 1987, Whipple Superchargers have been the pioneers and leaders of twin-screw supercharging. Engine Factory 347 Ford Stroker Trucks TV. 672 g/sec or 29. I am looking for ways to improve mpg on my 74 Sprint with following spec's; 454 bbc Holley hi rise Edlebrock 1406 carb 2. Unless you get a newer fuel injected small block, a carburated small block with mods and gears, that gives somewhat of the feel of a big block, is probably not going to give much better mileage than the 454 you're looking at. AOD Transmission conversion package. Question about 1992 Chevrolet C/K 3500. 1, Allison transmission, 4×4, 105,000 miles I may consider selling. The CNG injection system was set up as long as the. Carburetor vs Fuel Injection: Pros and Cons. The ignition timing set by the factory requires the use of a high-quality lead free regular gasoline with an octane specification of (R+M/2). According to Pony Carburetors, a 4V 390 needs around 609 cfm for peak efficiency and driveability, while a 428 needs 668 cfm. Unlike the popular Chevy 427 that was used in a wide variety of automobiles, the 454 was used only in high performance cars like the Chevy Camaro, Corvette and Chevelle. 2 mm), probably for better emission control as well as higher torque because it replaces a 427 that also. Something to consider too for some reason Ford went from a 600 cfm carb to a 480 cfm carb on the 390 AND the 428 on the 1966 T-Bird. Changing to 3. I'm looking at a 60,000 mile 1993 Holiday Rambler 34ft Motorhome with a Tag Axle on a Chevy chassis with a fuel injected 454 (7. This system is the equivalent of TPI for the V6 and will increase horsepower and torque by a factor of 20% over TBI. if you are getting an aftermarket system then make sure to get one that also has ignition timing control. The LSX 454 crate engine is a 21st-century upgrade to the legendary Chevy 454 big block race engine. Fuel Injected 454 Big Block V-8, 4-Speed. I have never known anyone that has a 454 or a 460 to get better than 12mpg, and even then I think the actual milage is more like 10mpg. Engine Assembly, Crate Engine, Remanufactured, Chevy, Big Block, 454, 7. Bring your vehicle’s fuel system back to its top shape with this top-notch part. Views: 21942: Published: 23. Assuming that the ignition system is in tip-top shape, that sounds like a fuel related issue. As you already know though, driving style and driving location makes a huge difference (we don't drive in mountains much). 0/364 MPI 375 hp : 25. With your set up you are not running a Big Block in its most effiecient rpm range you are more in its power range for towing. Used 2020 Toyota Corolla, from Avis Car Sales in Glendale, CA, Call 855-850-0040 for more information. 0 GPH | Crusader 5. Well - I have a 1984 gmc dually that is a big truck, and im only getting about 10 mpg. 73 posi rear. A motorhome fitted with a hydrogen injection system, will experience 20% to 50% better gas mileage and works with either diesel or gasoline engines. Re: 1989 Winnebago SuperChief 454 7. The reason it’s important to know how a WBOS works is because there are several conditions that can fool an oxygen sensor into thinking that the engine is. This is a technology similar to how diesel engines run, in that it is direct injected and one of the many reasons the SkyActiv engine is able to get such high gas mileage. Learn more about dyno specs, installation & more. The automatic transmission was upgraded to the 4L80E and gearing was changed to 4. Over at the Suburban forum many with big blocks report 13-14-15 MPG on a "regular" basis. For N/A Applications. Good Looking, Hard To Find Truck! toyshedtrucks. 9L Supercharger Intercooled Hot Rod Kit W175FF. you could find a stock gm efi system (intake, TB, ecu) from a 454 in a junk yard. Yet the LSX 454 heads maintain a compression ratio that allows these engines to operate on regular gas. How much etc I am still learning. GAS MILEAGE. Drivetrain. Pro-Flo 4 is not just a replacement for your carburetor, it's a complete engineered system that provides the ultimate in performance, drivability and quality. 454 GEAR RATIOS (OVERALL) 3RD 4. I have a 1992 Chevy Dually with a 454. It used several ideas that were proven in the Sno Pro 600 race engine, including the lighter crankshaft design and crank wheel. “I have converted one of my personal cars over to a fuel-injection setup similar to this one, and really like. ignition timing control is a key factor in mpg and throttle response. Roundup: These 5 cars have the worst fuel economy Back to video. The tranny is a th350. Its fuel injected and my problem is this. A fuel injector flush can really help your gas mileage as clogged fuel injectors can cause a lot of problems. I'm looking at a 60,000 mile 1993 Holiday Rambler 34ft Motorhome with a Tag Axle on a Chevy chassis with a fuel injected 454 (7. Get KBB Fair Purchase Price, MSRP, and dealer invoice price for the 1993 Chevrolet 1500 Regular Cab 454SS Short Bed. When the engine is stopped, fuel cannot pass the air valve because the air valve spring holds the air valve closed. The combination of larger bore and eight cylinders equates to very poor gas mileage. The all-new C-TEC2 600 is the first snowmobile engine designed engineered and produced by Arctic Cat. 412 sae duration-269 int, 278 exh timing 19 btc rear tire size-p275/60/15 I bought this. Home Air and Fuel Delivery Electronic Fuel Injection Fuel Injection Systems FiTech Go EFI Power Adder Fuel Injection Kits Part # 52131004. Increasing the gas mileage without sacrificing performance on the vehicle only requires inexpensive and simple changes to the engine. 672 g/sec or 29. 454 GEAR RATIOS (OVERALL) 3RD 4. 2 seconds while the quarter-mile time cut 2/10ths to 15. 73 gears, the truck averaged about 23 mpg on freeway trips, With the V8 and the 3. Unlike the popular Chevy 427 that was used in a wide variety of automobiles, the 454 was used only in high performance cars like the Chevy Camaro, Corvette and Chevelle. In 1987, the 454 switched from a carburetor to fuel injection, bumping power to 255 horsepower and 405 lb. it has a 3" body lift and 33s. Higher pressure than 15 psi indicates that there is an issue with the installation. Fuel Injection Systems, Downdraft and EZ-EFI 2. from $454 /mo Get E-Price Vehicle Details. The resultant effect of this is poor fuel economy, as the vehicle’s ECU believes that it needs more fuel than necessary. It surprised me. Assuming that the ignition system is in tip-top shape, that sounds like a fuel related issue. The fuel injected version of the 283 in 1957 that was used in the Corvette produced an amazing 1 horsepower per cubic inch which was almost unheard of at the time coming from a factory built engine. from $454 /mo Get E-Price Vehicle Details. Obviously the BBC compared to this engine is the leader with higher over all HP and torque, but the 6. 882 FUEL SYSTEM Electronic Sequential Port Fuel Injection (ESPFI) EXHAUST 2-into-2 shotgun. 4-liter) fuel-injected engine was not exclusive to the 454 SS model, but instead was the same V-8 available in 3500 and 2500 pickup models. The 454 is a big-block carbureted engine found in most older model Chevrolet cars and trucks. 00 US $1,390. Over at the Suburban forum many with big blocks report 13-14-15 MPG on a "regular" basis. 234 valve lift int. For N/A Applications. 5 lbs lighter than the former 600 Suzuki two-stroke engine. Our 94 Allegro Bay 37' with 454 got around 7-7. Choose your engine, front drive components and transmission package for a true FactoryFive turn-key build! Nothing sounds meaner than an American pushrod V8! Not to mention one that features 427 cubic inches, and even outpaces the modern Coyote in Sound, Appearance, and HORSEPOWER! Designed specifically for your new. 1982 Chevrolet Corvette Fuel Economy 1982 Chevrolet Corvette, Fuel Injection, 5. 5 GPH MerCruiser 4. 1, Allison transmission, 4×4, 105,000 miles I may consider selling. You can not change that. Firstly, the database only goes back to 1984 so the big-block muscle cars and 500 cubic-inch Cadillac Eldorados are missing from. This is because diesel fuel motorhomes get better gas mileage than gas ones do! Diesel fuel actually provides around 10%-15% more energy than normal gasoline does which helps make it more fuel efficient. About Tbi Years 454. Automatic. You may notice a fuel smell in your engine bay, or notice a fuel leak. mylesm260 said: I'm basically running the entire setup (engine, ecu, etc) out of an 01' astro van. The TBI and the ECM are remanufactured the rest of the parts NEW Fuel pump NEW Small Cap Distributor (except the upgrade large cap distributor is a remanufactured with new ignition module and pickup coil) The adaptor plate is a custom CNC machined plate that is pocketed to draw off all 4 holes (barrels) on your intake manifold. and I go to restart it I have to hold the accelerator pedal all the way to. com/ Engine Dyno Test on their Big Block Chevy 454 Stroker (496cid) FAST XFI Fuel Injected Turn Key Crate Engine. Did say that the 15. Many times in which such a scenario is present, the fuel system isn’t suspect since it’s getting fuel pressure and running. 73 rear end gearing 400 tranny cam specs- int. Chevrolet Silverado 1500 2WD Regular Cab 454 SS. 90 and older is particularly bad and that is largely due to NO OVERDRIVE. In this example, the Coventry car lime is of- fered in three engine sizes: 454 8 4 X 10 14 Monte Carlo 350 8 2 X 13 18 400 8 4X 13 17 Coronet 454 l1l6 C~ronet/Charger. FUEL PRESSURE REGULATOR. Seems there was a corrosion problem on the connectors caused by the ethanol gas, and the ground at the top of the tank area was very rusted and corroded, causing bad. These heads have offset rockers, like those in the LS7. 302 Ford – 350 HP w/ AOD 4 Speed Transmission Kit. The ideal air-fuel ratio is 14. The ignition timing set by the factory requires the use of a high-quality lead free regular gasoline with an octane specification of (R+M/2). Transmission. FiTech 31004 Go EFI 4 600 HP System, Power Adder. It used several ideas that were proven in the Sno Pro 600 race engine, including the lighter crankshaft design and crank wheel. 1982 Chevrolet Corvette Fuel Economy 1982 Chevrolet Corvette, Fuel Injection, 5. About Mpg 454 Injected Fuel. Which is closer to the best I have ever heard of a 454 doing, at around 12 MPG. agree would much rather have a 8. Become a Preferred Vendor. 3,101 Posts. 3 GPH | Crusader 6. com/ Engine Dyno Test on their Big Block Chevy 454 Stroker (496cid) FAST XFI Fuel Injected Turn Key Crate Engine. ignition timing control is a key factor in mpg and throttle response. 90 and older is particularly bad and that is largely due to NO OVERDRIVE. Automatic. Always check to insure that you have the proper fuel pressure. Follow us on Facebook and Instagram. So, I'm wondering if anyone has seen real world MPG improvements with these systems, and what numbers you have seen. 0/364 MPI 375 hp : 25. The ignition timing set by the factory requires the use of a high-quality lead free regular gasoline with an octane specification of (R+M/2). A spark-ignition engine needs a particular air-fuel ratio in order to operate. There were 3 different variations of the 454 that came onto the drawing board at GM during the 70s; the LS5, the LS6, and the LS7 which. fuel injected: 1preacherman: YJ Wrangler Technical Forum: 4: 09-09-2009 08:33 PM: when did they make jeep fuel injected: scott2001: TJ Wrangler Technical Forum: 1: 08-18-2009 02:26 AM: fuel injected yj: nj tj: YJ Wrangler Technical Forum: 2: 02-09-2009 11:03 AM: Dead 94 Jeep Wrangler Fuel Injected: goneflyn: YJ Wrangler Technical Forum: 1: 04. PCE Oldsmobile 400 425 455 Manifold & FiTech Go EFI. you could find a stock gm efi system (intake, TB, ecu) from a 454 in a junk yard. When its comes to running your motorhome with a hydrogen injection generator, fuel costs are cut considerably. I was told that I could get around 15 mpg if I drive it nice. Resulting in a more secure installation. FUEL PRESSURE REGULATOR. After I make a few stops and it gets up to temp. On electronically fuel-injected engines, a sensor lets the "brain" of your car know how open the throttle is (which is dependent on how hard you're pressing on the gas pedal) and based on that the injectors release more fuel. Bring your vehicle’s fuel system back to its top shape with this top-notch part. 96 and up have the multi port fuel injection vortec which. If you're thinking big block, go with the 496 8. 7L V-8 engines. MerCruiser 454/502 CID Carbureted & TBI 1983-99 These fresh water cooling systems, manufactured for us by Seakamp and San Juan Engineering, will convert a currently functioningMerCruiser 454/502 CID Carbureted & Throttle Body Fuel Injected models (1983-99) from a raw water cooled application to a fully functional fresh water cooled full system. HHO Kits For Commercial Fishing Boats. 1, Allison transmission, 4×4, 105,000 miles I may consider selling. AFR, you will note that as the AFR gets leaner,. 1 Liters) debuted in 2001. Also known as the Vortec 7400 (7. desertrat67 is offline Quote Quick Reply. i drive it every day an im getting about 10 mpg :puke:. agree would much rather have a 8. We had about four tanks that hit 9. Just keep it stock, stock tires and keep with maintenance clean the egr vavle, run some seafoam through the intake to clean some of the carbon buildup out thats restricting flow, keep tires at right psi, ect. Fuel Economy of 1985 Chevrolet 10 Pickup ; EPA MPG; Pickup 4WD 4 cyl, 2. If your engines cannot product WOT RPMs but you still run at WOT, then you inject more fuel than the engines can burn. I don't want to assume that an EFI would be a magic fix. 4L 1994, GM Original Equipment™ Throttle Body Idle Air Control Motor by ACDelco®. includes the 8. Superchargers, turbochargers, alternate fuel, electric-assisted engines, and even fuel injection all has its roots either before or during. 454 L29 Specs: Gas-STD (L29) 454 CID (7. 4L) gas engine and 3-speed automatic with O/D. Note that this is a 20% improvement over another proven form of fuel injection. Engines with throttle body injection are somewhat faster (2 to 3 times per second at 2500 rpm), while engines with multiport injection are the fastest (5 to 7 times per second at 2500 rpm). 73 posi rear. What they said. When I start it in the morning it starts but runs and idles very rough. 73 gears, Edelbrock 750 carb, and an Xe 268 cam. PCE Oldsmobile 400 425 455 Manifold & FiTech Go EFI. Higher pressure than 15 psi indicates that there is an issue with the installation. In 1996, Chevrolet added Vortec heads to their 5. Engine Assembly, Crate Engine, Remanufactured, Chevy, Big Block, 454, 7. Search by make for fuel efficient new and used cars and trucks. 0 GPH | Crusader 8. or built one from scratch. With Matching Torque Converter, Fluid, TV Cable. I have an '02 crew, 8 ft box, 8. What happens is the the amount of fuel injected or air induced is determined mechanically (or electronically on newer engines) based on the engine producing rated hp at WOT. About 250 miles one way. Emissions and fuel economy. This might be enough to allow the engine to start, but not keep running. This is not necessarily true. and I go to restart it I have to hold the accelerator pedal all the way to. There are many others that will do the same thing but the 1227747 is most well known and documented and will be the basis for this article. Includes Billet Pulleys and Alternator. 4L Magnum MPI. pdf 1985 kawasaki 454 ltd en450 aftermarket parts for custom 1985 Kawasaki 454 LTD EN450 Your bike was great off the lot, Service Manuals (2) Universal Parts. 08 gears brought the freeway fuel mileage up to 22 mpg. Mercury Marine Quicksilver Water Separating Fuel Filter Remote 35-802893T 2 Pack. Simple Answers to Technical Questions. Increased fuel consumption. 5 seconds and on to a maximum speed of 124 mph. Direct Injection. Increasing the gas mileage without sacrificing performance on the vehicle only requires inexpensive and simple changes to the engine. 2001-2002 LS1 uses 3. It's 208 miles from my house to Portland, and I have done this a couple times on 10-11. That makes it a great subject to test fuel injection versus a carburetor (in this case a four-barrel). MerCruiser / Quicksilver Part# 802632T. Any thoughts?. 0 MPI/TKS - 181 cid 135 hp 0. Beyond that, there are a handful of variants that feature different horsepower, torque, and even fuel management. 8 to 62 mph in 10. 000 TBI fuel injection Wiring Harness Check engine light Fuel pump Adapter plate - Precision machined aluminum pocket plate Fuel tubes Installation. i drive it every day an im getting about 10 mpg :puke:. The engine uses eight cylinders to provide high-end torque and speeds. Fuel injector symptoms for bad, faulty, dirty, clogged, or leaking injectors are : Starting issues. TBI Fuel Injection Conversion using a GM TBI EFI system! One of the most popular EFI conversions to older Chevy engines or any engine for that matter is the GM TBI system using the 1227747 ECM. Any thoughts?. Windows Work. The combination of larger bore and eight cylinders equates to very poor gas mileage. maybe after taxes and i get my yearly re-enlistment bonus kicker _____. After I make a few stops and it gets up to temp. 73 rear end gearing 400 tranny cam specs- int. FUEL PRESSURE REGULATOR. 350 Chevy Small Block V8 Fuel Injection Systems in-stock with same-day shipping. 4L) ENGINE Complete Fuel Injection System for Stock Big Block Chevy 454 Fuel Injection System Includes: TBI - Rebuilt 2. Cruise set mostly on 65mph. 7/350 MPI 330 hp : 20. ) 12 L/100km 8 km/liter 23 MPG (Imperial) Vehicle. you are looking at a 2012 harley-davidson dyna wide glide (fxdwg) with 10,449 miles on it. FUEL PRESSURE REGULATOR. Your average fuel injected motor runs 10. You will use a certain ammount of energy to go a certain speed on any given boat. Injected Mpg 454 Fuel. Fuel injection can help improve the fuel efficiency and performance of older carbureted engines. Unfortunately, the fuel-injected engine sucked down a gallon of gas for every 10 or 11 miles driven!. 0:1 and extremely. Re: Gas Mileage: 454. fuel injected: 1preacherman: YJ Wrangler Technical Forum: 4: 09-09-2009 08:33 PM: when did they make jeep fuel injected: scott2001: TJ Wrangler Technical Forum: 1: 08-18-2009 02:26 AM: fuel injected yj: nj tj: YJ Wrangler Technical Forum: 2: 02-09-2009 11:03 AM: Dead 94 Jeep Wrangler Fuel Injected: goneflyn: YJ Wrangler Technical Forum: 1: 04. You can not change that. This is not necessarily true. I was told that I could get around 15 mpg if I drive it nice. Its a direct true bolt in for 96 to 99 Siverados. 1, Allison transmission, 4×4, 105,000 miles I may consider selling. Some direct fuel injection systems co-exist with port fuel injection systems. According to Pony Carburetors, a 4V 390 needs around 609 cfm for peak efficiency and driveability, while a 428 needs 668 cfm. Injected Mpg 454 Fuel. The tranny is a th350. How would this vehicle perform as a tow vehicle pulling my 30 ft overall enclosed (24ft box with tapered and wedge front) a. The combination of larger bore and eight cylinders equates to very poor gas mileage. [Subject] could a MPFI/TPI 454 get 26mpg highway? [Question] with tall gearing, a tune for MPG, and an S/C with a low overlap cam/miller cycle cam spec (leaves intake valves open for 10-15% of the compression stroke to increase efficiency). In 1987, the 454 switched from a carburetor to fuel injection, bumping power to 255 horsepower and 405 lb. 8 to 62 mph in 10. The air-fuel ratio. As stated above, a good tune up with quality plugs, cap/rotor, wires, O2 sensor and fuel filter. 5 GPH MerCruiser 4. Has this been everyone else's experience?. 234 valve lift int. Its a direct true bolt in for 96 to 99 Siverados. Check out GMs performance HT383E crate motor. Guaranteed lowest price! Save $15 Off $299, $25 Off $499, $50 Off $799, $100 Off $1,599 Orders. Lower compression, cam profiles, ignition timing, and richer mixtures to reduce combustion temperatures reduced NOx which was the environmental bad boy at the time. 1367 miles RT. Follow us on Facebook and Instagram. 9 mpg with the 454. but i really would love to get a ez efi for myself one day. 8) Fuel Injection Sensor Issue. Transmission. I was thinking of putting in a mild 454 but i still want descent mileage. Chevrolet Silverado 1500 2WD Regular Cab 454 SS. In my ponderings for a new 4x4, I keep considering chevy trucks from the 70's or early 80's, whether it is a truck or a blazer or suburban, with a 350 smallblock. If an engine is running rough, has an irregular idle, and a lack of power on acceleration, don’t dismiss the fuel system as a possible cause. The fuel injected version of the 283 in 1957 that was used in the Corvette produced an amazing 1 horsepower per cubic inch which was almost unheard of at the time coming from a factory built engine. A fuel injector flush can really help your gas mileage as clogged fuel injectors can cause a lot of problems. Locks Work. Higher pressure than 15 psi indicates that there is an issue with the installation. About Mpg 454 Injected Fuel. Now gasoline motors use direct injection, much like a diesel, to inject the fuel into the combustion chamber. 454 engines are thirsty, plain and simple. Views: 21942: Published: 23. Bosch K-Jetronic Fuel Injection Part 1. Any thoughts?. Fuel Economy Engine HP Idle 1000 1500 2000 2500 3000 3500 4000 4500 4800 WOT MerCruiser 3. 0L so a 454 would have to get somehwere in the neighborhood of 7-9mpg. Cruise set mostly on 65mph. Out of Stock. i recently picked up a 92 gmc sierra. Become a Preferred Vendor. Text Email Facebook Our Price $33,384 from $586 /mo Get E-Price Vehicle Details. I am looking for ways to improve mpg on my 74 Sprint with following spec's; 454 bbc Holley hi rise Edlebrock 1406 carb 2. ( 3 ) Estimated Ship Date: 11/22/2021 (if ordered today) Core Charge $600. Locks Work. Plus MPG's are at the low end during the winter fuel blend. Pro-Flo 4 EFI systems feature a high performance Edelbrock intake manifold with a 1,000 cfm throttle body, fuel rails and individual injectors for each cylinder. Follow us on Facebook and Instagram. I don't want to assume that an EFI would be a magic fix. 1/496 MPI 385 hp : 29. 00 US $1,370. 6 hp with 423. Well - I have a 1984 gmc dually that is a big truck, and im only getting about 10 mpg. Edelbrock has been delivering the best combination of dyno proven electronic fuel injection performance for over 40 years. 4) 290 hp @ 4000 rpm Torque 410 @3200 rpm Sequential-Port Fuel Injection Comp. GAS MILEAGE. You may notice a fuel smell in your engine bay, or notice a fuel leak. Unlike the popular Chevy 427 that was used in a wide variety of automobiles, the 454 was used only in high performance cars like the Chevy Camaro, Corvette and Chevelle. I was told that I could get around 15 mpg if I drive it nice. In 1970, GM pushed the performance bar higher with the introduction of the Chevy 454 V8. Beyond that, there are a handful of variants that feature different horsepower, torque, and even fuel management. Power = force X distance / Time. I am building my 72 with the intention of getting it in the mid 20 mpg range with a fuel injected 454, 4L80 and 3. When I start it in the morning it starts but runs and idles very rough. On electronically fuel-injected engines, a sensor lets the "brain" of your car know how open the throttle is (which is dependent on how hard you're pressing on the gas pedal) and based on that the injectors release more fuel. includes the 8. And i hope that with a few checks/tweaks, I can improve that to the 15-17 range, but we'll see. Jul 3, 2012. GAS MILEAGE. Good Looking, Hard To Find Truck! toyshedtrucks. Our 28 Top Selling Engines. The Chevy 454 first hit the market in the 1970s. Now, my goal is to achieve 12 mpg while also getting better engine starts and engine life from the benefits of fuel injection. Injected Mpg 454 Fuel. Re: 1989 Winnebago SuperChief 454 7. About Mpg 454 Injected Fuel. Out of Stock. Code: EF 302-350HP. After I make a few stops and it gets up to temp. 3,101 Posts. it is custom harley paint set two-tone candy red & black (#7 of 200) made in this color and powered by a 1688cc (103") h-d fuel injected v-twin engine and 6-speed transmission. Many times in which such a scenario is present, the fuel system isn’t suspect since it’s getting fuel pressure and running. Unlike the popular Chevy 427 that was used in a wide variety of automobiles, the 454 was used only in high performance cars like the Chevy Camaro, Corvette and Chevelle. The OEM's only utilized throttle body style injection for 9 years before transitioning to sequential port fuel injection for improved drivability and efficiency. Power = force X distance / Time. Valve Train. Injected Mpg 454 Fuel. 21' Boat does 64 MPH (gps) with just me in it at about 4900 RPMS with a 23P prop. Search by make for fuel efficient new and used cars and trucks. When its comes to running your motorhome with a hydrogen injection generator, fuel costs are cut considerably. I was hoping to be able to drive it back and forth to the deer lease (150. I doubt anyone can get 20 mpg towing but cruising the interstate without a trailer it should be possible. 5 inches Hg (Standard Engine) 24° @ 13. 672 g/sec or 29. 3L (W) L35 Engine. fuel economy test results for automobiles and light-duty trucks gas mileage guide for barrel carburetor or fuel injection). The engine had MPFI (multi-port fuel injection), which gave slightly more power and better fuel economy, and 2 valves per cylinder. 5-liter four-cylinder engine runs on regular, the. With 285/75/16 Mud Tires. I was thinking of putting in a mild 454 but i still want descent mileage. The 454 received upgrades along with SQI (sequential fuel injection) in 1996, rebranded as the 7400 Vortec. About Mpg 454 Injected Fuel. Chevrolet Performance's 454 HO crate engine is a Big-Block bargain - an affordable engine with performance specs that will make you think it's 1970 all over again. Re: Gas Mileage: 454. See Details. Both oif these engine models are easy to recognize by the large “Bread Box” style intake plenum mounted directly on top of the engine. I know there many factors that influence MPG. 5 L, Manual 4-spd, Regular Gasoline [PDF] Detroit Police Department Policy Manual. 8 R022021 Dowel, cylinder head aligning 4 9 7050090 Plug, oil vent 2 10 7050270 Plug, pipe 1 11 7050020 Cam Bearing #1 1 12 7050030 Cam Bearing #2 & #5 2 13 7050010 Cam Bearing #3 & #4 2. 3X10 to the 8th Joules of energy. About Mpg 454 Injected Fuel. 2 Dualjet Hybrid to 62 mph in 13. Radio Works. It's a facelift of the 2017 Suzuki Swift 1. Remanufactured Long Block Crate Engines. AOD Transmission conversion package. 9L Supercharger Intercooled Hot Rod Kit W175FF. 4L) ENGINE Complete Fuel Injection System for Stock Big Block Chevy 454 Fuel Injection System Includes: TBI - Rebuilt 2. In most cases, even though they have all the advantages of a fuel injected engine, such as the ability to run at extreme angles, they rely on mechanical injection which is considerably simpler than electonic injection. Good Looking, Hard To Find Truck! toyshedtrucks. Search by Manufacturer. I doubt anyone can get 20 mpg towing but cruising the interstate without a trailer it should be possible. 0 GPH | Crusader 502 MPI 405 hp : 32. Stock TBI 454 makes 230hp and 380tq so stock fuel pump is maxed out right off and a typical 454 will run better with a fuel pump upgrade even with stock chip. Having a kerb weight of 1340 kg, it achieves 34. About Mpg 454 Injected Fuel. Megasquirt efi is a DYI system. i worked on a few back in the day. 793 GEAR RATIOS (OVERALL) 4TH 3. Roundup: These 5 cars have the worst fuel economy Back to video. GM says the stock ECM will work, but a custom tune will give more hp and torque. I know there many factors that influence MPG. In direct injection engines, the fuel injector delivers fuel right into the cylinder; so the valves never get fuel spray. 4L) gas engine and 3-speed automatic with O/D. Any thoughts?. Guaranteed to Work Perfect on Your MerCruiser or Volvo Penta 454 (8) REMAN MP I fuel injectorsThis injector has been carefully cross-referenced to replace the stock. Is it possible to get close to that? also i need to know what i need to do to make way for the 454. Part Number: NAL-12339193. Automatic. 4 L 454 MPI 310 HP Fuel Consumption. 4L 1994, GM Original Equipment™ Throttle Body Idle Air Control Motor by ACDelco®. The reason being that both like a different amount of fuel to air ratios for the engine to run properly, make good power, and be reliable. Figure 3 shows normally running wherein oxygen, MAP, coolant temperature and engine rpm are monitored and injection pulses are then sent to the TBI. A fuel injector seal or fuel injector O-rings seal the injector to the fuel rail and intake. Assuming that the ignition system is in tip-top shape, that sounds like a fuel related issue. Combined Fuel Economy Available in 2500 or 3500 form, the 2021 Chevrolet Silverado HD touts brash looks, big engines and towing capacity of over 35,000 pounds. but i really would love to get a ez efi for myself one day. The engine runs an average of 10 to 15 mpg. Jul 3, 2012. So, I'm wondering if anyone has seen real world MPG improvements with these systems, and what numbers you have seen. All The Lights Work. PCE Oldsmobile 400 425 455 Manifold & FiTech Go EFI. The L19 TBI, or throttle body injection, powered 1987 and later trucks as the second 454 engine option. For more inform. Includes Billet Pulleys and Alternator. 0 GPH | Crusader 8. Follow us on Facebook and Instagram. 4 MPG is often enough to claim, but not often enough to be "regular". 617 g/sec or 28. PCE Ford SB 289 302W Parker Style Manifold & FiTech Go EFI 30001 Fuel Injection. 454 Injected Mpg Fuel. 4L with the 5. 454 engines are thirsty, plain and simple. The 0-60 time was improved to 7. the are pretty crude compared to what is available today. Pro-Flo 4 is not just a replacement for your carburetor, it's a complete engineered system that provides the ultimate in performance, drivability and quality. I think both both are injected but the 98 is a more modern design (? vs TBI). Your average fuel injected motor runs 10. 0 MPI/TKS - 181 cid 135 hp 0. 1, Allison transmission, 4×4, 105,000 miles I may consider selling. My Suburban is GMC SLT, the hightest trim, so heavier than most Sub's. I am building my 72 with the intention of getting it in the mid 20 mpg range with a fuel injected 454, 4L80 and 3. All of our turn-key drop in ready crate engines include a custom engine harness and ECM that can be built. With a gravity feed fuel system, a clogged gascap vent, or misrouted/to long of a fuel line are common culprits, especially as the fuel level gets lower in the tank. i worked on a few back in the day. So if the gallon thing is true, 3. Because of this extra energy efficiency, diesel vehicles actually get 20%-35% better gas mileage than gasoline fueled vehicles.