Carb Vs Fuel Injection Dyno

Now before this get's into a flurry of debates, Let me just say that the following is dyno proven facts between 2 engines built by the same person and dyno-tuned by the same local shop. How will changing from a points ignition system to coil packs effect power? What about changing to EFI using some. It really isn't a big factor in power gain anymore with carb's. i have seen just as many problems with injection as i have carbs,and for the $2000 price difference,no thanks ill keep my carbs! boils down to personal preference. Berg's already proved Fuel injection doesn't make more power than carbs in the early 90's. KLR650 Fuel Injection Project. I have been loking into this for my 65. The Bendix mechanical fuel injection Chevy first used on their race cars in the mid-1950s had nothing to do at all with power, but rather dealt with gravity and inertia. 12 on the EFI run is slightly rich, enough to protect the engine from damage when at wide open throttle (e. However, it doesn't matter what you're using as in the end the goal is the same. The systems look similar, but as you’ll see, they. Arctic Cat, Kawasaki, Polaris, Suzuki, Yamaha,etc. 2015 honda crf250r dyno results. I have less money in my fuel injection setup than you can get a CSU carb for. Hedman Hedders & Trans-Dapt Performance Products are two of the hot rod industries original manufacturers, dating way back to 1954. We take a 5. Fuel Injection. For those who do test these things, look where things are going with the EMC entries. I am planning a carbed LSX in a project. However, the lambda sensor in the intake system senses not only air temperature, but also air density, and modifies the fuel through the injectors to provide the mixture through the map. everything you need to convert your existing engine to the new brodix sr 20 cylinder heads!. Research tells me there is approx. Fuel injection was patented in 1896 and commonly used in diesel engines as early as the 20's. Save for the different displacement (attributed to. This is a 426 Hemi with all the accessories including an a/c compressor. LS Carburetor Conversion Kits. Page 2 of 5 [ 62 posts ]. Our commitment to providing the best parts at the best prices is topped only by our dedication to providing the very best service to our clients. But again, without the really cool throttle response advantage of carbs. Fuel economy is a different topic, but it is a drag car after all. In order for it to do it right, it needs help with one unknown - how much air is entering the engine. Fuel Injection or Carb any actual numbers to compare? I am sure that for many it comes down what can I run in my state based on the registration process. Each carburetor manufacturer matches the airflow through the carburetor with fuel flow for the mass flow of air through the carburetor. The carbs will see very little signal vacuum at lower revs too so their operation will be less than perfect. Nick's Garage stickers and shirts!. HyperSpark Ignition. 2) The real difference between EFI and carb inductions is the fact that driveability and response to throttle will nearly always be better with EFI and so will fuel economy potential. What manifolds work best, what off-the-shelf TBI systems work best. The carb flange is designed for a 4500 carburetor, and the intake is available as a carbureted intake without fuel injection bosses machined, or a fuel injected intake with either 8 or 16 injectors. a carburetor on the same manifold), but given an open book and designed from scratch, EFI will beat it overall. Its design lends itself to have an unfair advantage in atomization. In fact, if you have a complete junkyard LS that still has the intake manifold, throttle body, and injectors, you can get a much cheaper LS controller that plugs right in. There were also some V8s that used side draft Webers trying to keep the air flow in as straight a line as possible. If performance is fine then you need to look at cost vs gains. Prestige Motorsports recently spent some time on their in-house engine dyno to find out how well two fuel injection systems supported an 800-plus horsepower neck-jerker. Most think about expensive sensors, confusing computer codes and lots of wires and don't consider the huge benefits over a carb. Current Ads Dyno Charts Event Schedule. While carburetion may still hold a small advantage in the smoothness of off-to-on throttle transitions (like getting back on the gas from a closed throttle in a corner, or when driving at a very low speed, particu. 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 carburetor in the 1970s. 6 based on 26 Reviews "When I first moved to Arizona the fuel they use has more. Here's the condensed version of mxrob's Fuel injection project on msruns. development along with carb characteristics and. As long as an engine gets the correct amount of fuel at the proper time, it doesn't care if it gets it by a carb, fuel injection or you dribbling it in with a rusty soup can. race carb, we want to take a look at the features of each and discuss what makes those features work for their specific application. See how the Go EFI 4 performs on the dyno against a Quick Fuel SS 750 carburetor, and get our initial take on this self learning system. Modern technology is great,but sometimes expensive. For 2007, we added a new Super Flow SF902 engine dyno. That being said, even the 2100 will help there due to the Ford's better venturi design in many of their carburetors. Carb vs Fuel injection Hey all, I'd like to see what a good dyno session would do for it. Number four have to change jets when changing exhaustsWith fuel injection I got rid of all of those problemswhats not to like about fuel injection?. In the past 6 years distribution of RACE-GAS Race Fuel Concentrate has grown to over 750 retail outlets and 13 wholesale distributors in North America. Livernois Motorsports & Engineering continues to expand the world of tuning possibilities with our MyCalibrator tuner. Power Commanders, chips,maps,trips to the dyno man. 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 carburetor in the 1970s. This is the limitation of both the Speed Density and Alpha-N type fuel injection systems. 12 on the EFI run is slightly rich, enough to protect the engine from damage when at wide open throttle (e. Carburetor Vs. RSR Fuel Injection, the only race proven fuel injection system. The mixture then goes to each cylinder through the air intakes. A number in this column is an estimate in hours of the time it takes a skilled operator to perform a tune of both cylinders over the full range of rpm and throttle openings on a dyno equipped with dual AFR. This test involved a comparison between the Eight Stack injection and a dual plane Edelbrock Performer RPM intake manifold topped off with a Quick Fuel 750 cfm carburetor. But if you're a carburetor guy considering your first foray into fuel injection, this episode of Engine Masters is for you. Easier starting, NO CHOKE, and more power (debatable I'm sure). In order for it to do it right, it needs help with one unknown - how much air is entering the engine. everything you need to convert your existing engine to the new brodix sr 20 cylinder heads!. I am used to carbs. That said, I've always been a fan of carbs and it will be a challenge to switch to EFI but it seems more and more like the solution for those of us living in states where the fuel mix changes at least 2x each year. Fuel Injection Full Blown Performance by Mike Ancas and Dennis Witt. In fact, if you have a complete junkyard LS that still has the intake manifold, throttle body, and injectors, you can get a much cheaper LS controller that plugs right in. Howell Throttle Body Fuel Injection (TBI) for a Jeep CJ - 258 California Emissions Engine From day one, I have just been dreaming about a day when I could install a Howell fuel injection system on my CJ. Off road motorcycle parts and accessories. 2015 yamaha yz250f dyno results. Hilborn Individual Runner Electronic Fuel Injection twist the upper end of the dyno on pump gas. MSD LS Ignition Control Box for LS1/ LS3/ LS6 allows you to install a carburetor on your LS-based engine. To keep our testing in the realm of “fair and balanced” we chose to pit the two race carbs against each other on the dyno. Therefore, too much fuel is consumed, too many emissions are released, and optimal performance is not obtained. com offers sales and technical service for Ron's Fuel Injection systems and related components - 3X Bracket Driver of the year James Monroe. This means after ditching the carb on our SBC, we simply used the four studs and bolted down each unit. Carburetor spacers can help isolate the carburetor from a hot intake manifold. The basic difference between a carburetor and electronic fuel injection is that a carburetor is totally dependent on intake vacuum for fuel metering and delivery. Carburetor vs. How much FUEL is added depends on the carb or fuel injection computer. Most think about expensive sensors, confusing computer codes and lots of wires and don't consider the huge benefits over a carb. Carb isn't necessarily cheaper than efi. The LC Pro Fuel Injection System can be used with turbo conversions or factory EFI systems and superchargers. Additionally, the annular-flow boosters can also potentially offer improved fuel mileage in some applications. Carburetor/Injection. When used with the Twin Tuner, you can directly export calculated fuel correction data to Twin Tuner data files. my 87 civic has a carb on it, I'd like to turn it into a fuel injected car possibly. SNIPER EFI 2GC. But what's interesting with that, at least on a gen I SBC, a well tuned carb is not far off from the bolt on aftermarket EFI kits. Find FiTech Go Street EFI 400 HP Self-Tuning Fuel Injection Systems 30003 and get Free Shipping on Orders Over $99 at Summit Racing! EFI conversions made easy--FiTech Go Street EFI 400 hp systems are true carburetor replacements. - Super Street Magazine. Many riders have gone with an aftermarket fuel management system wanting to eliminate the lean condition (high air/fuel ratio), primarily so it seems to enjoy a smoother running engine with better throttle response while also reducing the engine's operating temperature, most evident when riding in stop & go situations and at slower speeds. Observation: 1 There are 2 Basic Electronic Fuel Injection. The key variables that determine which fuel pump is suitable for a particular engine combination are: · Engine flywheel horsepower. My engine has no fuel injection intake plenum and or harness to run it. Fuel Injection or Carb any actual numbers to compare? I am sure that for many it comes down what can I run in my state based on the registration process. As long as an engine gets the correct amount of fuel at the proper time, it doesn't care if it gets it by a carb, fuel injection or you dribbling it in with a rusty soup can. neck of the carburetor and mixed with the air then it flows to the engine. If the fuel has 10 percent oxygen I assume I would need 10 percent larger main jets like maybe 175 mains or I guess I could use smaller air correction jets. Alkydigger is the Largest Stocking Dealer for Enderle Fuel Injection, Hilborn Fuel Injection and The Blower Shop Superchargers. Good fuel mileage, typically 42-45 at reasonable highway speeds. Find CHEVROLET 7. Edelbrock Community Forum Statistics (NOT FOR FUEL)" tag on the throttle body brake booster inlet diagram. Easy to use EFI controller using load based technology to adjust the fuel for popular models like the Yamaha Raptor and YFZ 450, Polaris Sportsman and Scrambler, CAN AM Outlander and Renegade, etc. EFI Versus Carb Dyno Test! Injection Inspection. How To Bolt On 25 Hp And 35 Lb-ft Of Carb-Approved Performance To Your '87-'95 5. It's not hard to install, You'll need: Injectors A good fuel pump and regulator An ECU and the loom (you might be able to get one from a wreckers to work but aftermarket would be much, much preferable) and the tricky bit, a number of sensors, (crank angle, MAP/MAS airflow etc) I'm not sure what what parts you'll be able to find at a wreckers, but find the biggest capacity motor you and that'll. 3L LM7 engine where a Holley HP 750-cfm double pumper carburetor, and the EFI kit is Holley’s Terminator throttle-body-injection system were tested on. [Throttle body fuel injection was added to the 2. 1972 240 carb to fuel injection conversion? Sign in to follow this. the engine. Fuel injection reliability improved by using new injector design The small block V-8 family of marine engines offers proven reliability and durability over a range of horsepower and torque. With the introduction of Ethanol type fuels like E85, and the wide spread use of water/meth injection, there is a debate stirring about which is better. The Mopar and XV carb intakes are pretty reknowned for cutting horsepower bad, not necessarily the carb's fault. I'm good with carbs, but there is stuff you can do with efi that you just can't do with a carb. the dyno run). With four spacers for an 8-inch stack, the fuel-injection output closely approached that of the carb with one spacer. HyperSpark Ignition. 331 efi vs 331 carb; If somebody wished to convert to or stay with fuel injection, fine and dandy, but I would suggest a very wise first move would be. ThunderMax offers hundreds of different basemaps which have been pre-dyno tuned and can be selected / loaded through the TMax software. i had injection on my suzuki. Both diesel and petrol engine will convert fuel energy to mechanical energy by a series of explosions, the way these explosions ha. Fuel injection vs carbs is nothing new. So what we'll have to do now is run it a bit richer than we'd like at peak torque and sacrifice some of that power to make sure we have a nice, safe air/fuel ratio up top in the rev-range. With an electronic fuel injection system, the required fuel amount for each RPM and engine load condition is located in the fuel map located in the ECU(or addition on a powercommannder). - I currently have a 427 BBC w/ 6-71 weiand supercharger that is carburated. Carburetor VS Fuel Injection. - Muscle Mustangs and Fast Fords Magazine. The point of diminishing returns on the fuel efficiency in our dyno run was at 6,400 RPM when the trend started to reverse and the carburetor became as efficient fuel wise as the EFI system. Fuel economy is a different topic, but it is a drag car after all. Quite the combination!. The need to hack away part of the frame is an obvious “show stopper. HP Calculator; Do you have our 1000cc high-z injectors? How about our 1120cc low-z injectors? Are you dreaming of upgrading to our 2150cc or 1100 high-z injectors? If you want to know just how much power you can make with what you’ve got (or what you’d like to have) it’s as easy as plugging a few details into our horsepower calculator below:. But what's interesting with that, at least on a gen I SBC, a well tuned carb is not far off from the bolt on aftermarket EFI kits. This is a very good carb for the small ford in a light car. Electronic Fuel Injection Recently, we spoke with Mark Honsowetz, the EFI Product Manager of Edelbrock, about the Pro-Flo 4 Electronic Fuel Injection (EFI) for the LS engine and some of its advantages over a carbureted. Find CHEVROLET 7. The only fuel injected intercooled Harleys that hold national drag racing championships or Bonneville records come from one place. We check out FiTech’s new fuel-injection system and put it up against a carburetor in a heads-up EFI dyno test on a mild junkyard LS engine. Alky injection KY JELLY on September 9th 2011, 7:11 am I will admit I have not studied the internals of Rons barrel valve distribution block, but I have been involved with a close friends that used them and they had lots of fuel pump issues and a lot of times were running borrowed "back up" enderle pumps that were 10 - 12 year. Build A 600HP Ford 460 Part 1. Its design lends itself to have an unfair advantage in atomization. Re: Alky carb vs. We specialize in carburetor and fuel management systems for all aspects of motorsports. The carb run shows around 10. BBC - bosses in place andwelded in water crossover. The outright power on a dyno can not measure this for you. Holley’s Avenger system is a “plug-and-play” self-tuning system that works well with big-plenum intakes plus a spacer or with heated intakes. Features a 2-step rev limiter, a vacuum advance curve for cruising economy, & even a step retard for nitrous use. AS far as carb vs EFI there are numerous dyno threads on the c*rral of similar engine combos getting more power with a carb. There is now a fuel injection kit available for the DR from Ecotrons which looks very promising. As fuel mixtures continue to change EFI can save an engine. Which home-tuned system is hiding more horsepower, a traditional carburetor, or a Holley Electronic Fuel Injection system? Find out in this episode of Hot Rod Garage presented by Lincoln Tech!. The exact air/fuel ratio can be determined by dyno testing, with the ratio selected on the basis of the one that gives best torque. This is due to correction of a poor fuel mixture and reduction in backpressure of the stock muffler. This is pretty much it on the. The question is obviously a complex one, as we need to determine exactly what carb and what computer, to say nothing of what we mean by better. FiTech's Go EFI-4 600 HP Throttle Body System is rated at 600 HP, but is suitable for 250 HP through 600 HP engines, making this system perfect for everyday driving, weekend street machines or bracket racing applications. FiTech Fuel Injection, FiTech once again allows you to ditch that old carburetor and advance into the EFI world at the most affordable price on the planet!. Fuel Injection: Better than Carburation? It's easy to think of Fuel Injection as "an electronic carburetor replacement". 7L TBI Chevy Small-Block Hauler, in this Chevy Truck Stock TBI Setup To Edelbrock EFI System Conversion in Sport. I see him coming out of the box as good as anyone. THe newer systems will make more power only because they can adapt to bigger cams,change timing & the like. Our systems deliver more power and a better throttle response, giving you the performance you need. Fuel Injection: Understanding the Pros and Cons Which offers the best performance, carburetor or fuel injection, is highly debated question among car enthusiasts. For this 383 stroker, we chose to combine a dual-plane, Eliminator intake from Speedmaster with a Holley 750 HP carburetor. Nick's Garage stickers and shirts!. FiTech EFI is dedicated to bringing the most advanced fuel injection systems on the planet supporting engines with up to 1200hp, 2X4, nitrous, boosted, and E85. Here's the condensed version of mxrob's Fuel injection project on msruns. I believe the ultimate combo in an old car is the old car with modern drivetrain/electronics/fuel injection. Therefore Classic Inlines decided to put them to the test. EFI has the greatest ability to meter fuel with fantastic precision. Custom Dyno and EFI Tuning Get the power as it was meant to be. Fuel Injection: Carburetors and fuel injection systems both control the mixture of air and fuel that goes to an engine -- but how do they work? What's the difference? Listen in and learn more with Scott and Ben. However, where I sway from this old belief is fuel injection. Professional Products is currently one of the industries’ largest suppliers of street and SFI-certified harmonic dampers, and also offer a full line of fuel system products. But yeas, EFI in the 70's and 80's were not that great. In addition, we are Master Dealers for: MSD Pro Magnetos, Hunt Vertex Magnetos, SuperMag Magnetos, Milodon Gear Drives, RCD Engineering, Ted’s Zoomie Headers. Contributed By: Enginebasics. To understand how poorly ANY carburetor (all rely on vaccum to meter fuel) meters fuel, you have to see it real-time on a Dyno with an Air/fuel sensor hooked up. Problem one, took 5 minutes to warm up. Fuel surges forward in the tank or the fuel cell during hard braking, causing the pump to get a gulp of air. The simplest conversion is to. Note: for comparison purposes most stock 80" Evos make approx 50 hp and 60 ft lbs torque at the rear wheel. Holley's catalog includes all the automotive and marine products offered. Alky injection KY JELLY on September 9th 2011, 7:11 am I will admit I have not studied the internals of Rons barrel valve distribution block, but I have been involved with a close friends that used them and they had lots of fuel pump issues and a lot of times were running borrowed "back up" enderle pumps that were 10 - 12 year. Intake manifold vacuum pulls fuel through metering circuits while atmospheric pressure provides the push. · Engine fuel efficiency, commonly referred to as BSFC or Brake Specific Fuel Consumption. 1972 240 carb to fuel injection conversion? Sign in to follow this. (Street porting is a technique where the engine is disassembled and the engine intake ports have been enlarged to provide improve air flow. Lectron is celebrating 45 years of helping riders get the most from their vehicles with our high performance carburetors and EFI. The Yamaha YZ250F was the last holdout and they quit holding out. Once this primary fuel amount is known, then the ECU further adjusts the fuel mixture for the engine and air intake temperatures. Carb comparison on a dyno Sportster Motorcycle Air advice and/or how tos for Sporster and Buell motorcycle carburators, Electronic Fuel Injection (EFI), Air. I did a Dyno test for David around 10 years ago that was featured in Sept. A carburetor is a mechanical fuel metering device with low resolution no matter who worked the carburetor; claims that a name brand carburetor can run as well as fuel injection are pure drivel, plain and simple. Great gains in power, throttle response, acceleration, and overall performance. Find CHEVROLET 7. The Bendix mechanical fuel injection Chevy first used on their race cars in the mid-1950s had nothing to do at all with power, but rather dealt with gravity and inertia. 36 Which home-tuned system is hiding more horsepower, a traditional carburetor, or a Holley Electronic Fuel Injection system?. Willy's Carb & Dyno Shop, LLC 1000 N Market St Mount Carmel, IL 62863 United States of America. But what's interesting with that, at least on a gen I SBC, a well tuned carb is not far off from the bolt on aftermarket EFI kits. The throttle linkage was the same as the carb, hooking right up. Holley has a very useful website for choosing the correct carburetor that most people find very easy to use, and there are others as well. Imagine the surprise when Durrett explained that the engine in this video was nearly the same product as the engine featured previously. Thus, a pump that flows, let's say, 130 CARBURATOR VS. Dyno charts can be seen in our comparison section below. neck of the carburetor and mixed with the air then it flows to the engine. Our commitment to providing the best parts at the best prices is topped only by our dedication to providing the very best service to our clients. The fuel I use now is 110 octane race gas non oxygenated. Observation: 1 There are 2 Basic Electronic Fuel Injection. Pro-M EFI does it all! Tuning software so easy and intuitive, most anyone can be a tuner. Only at www. There is alot of good points about fuel injection but i do prefer carbs as i can tune them easier, (coz im used to them) I sure if you put them on a Dyno back to back the K-jet would be more driveable but im not sure that it would get the best power out of an engine,. Our EFI systems provide excellent throttle response throughout the RPM range along with smooth engine operation. Carburetors or Fuel Injection - Carbs vs. The cost of a fuel pump,air box,regulator can not be added in because you have to have those with carbs also. Good fuel mileage, typically 42-45 at reasonable highway speeds. Can i swap my 454 carb engine out and replace it with a fuel injected engine will i get a little better fuel mileage. Carb Quick Guide Cam Specs & Overview Pushrod Adjustment Special Order Forms S&S Vintage Forum Tech Tips General Information Carbs and Fuel Systems Tech Tips Ignition Tech Tips Lower End Tech Tips New Engine Installation Tech Tips Oiling Systems Tech Tips Top End Tech Tips Valve Train Tech Tips Sales Questions Calibrations & Software Protune II. Another fuel system was introduced in 1992 called Central Port Injection (CPI) and appeared first on the 4. 2015 ktm250sxfe dyno results. I know the fuel injection could be a pricey way to go compared to the carb options and its a more efficient. While doing the testing, we developed a new emulsion tube system for the Mikunis. Fast, Free Shipping on Orders Over $79 on JD Jetting Jet Kit & JD Jetting and gear at MotoSport. thats all they. One is known as CFI, as in Central Fuel Injection. Fuel economy is a different topic, but it is a drag car after all. Remember a carburetor is an atomization/emulsion machine. The need to hack away part of the frame is an obvious "show stopper. Because it truly is no more or less than that. Hidden Horsepower - Carb vs EFI: Where Does the Power Hide? - Hot Rod Garage Ep. Sniper EFI 4150 4BBL. The Yamaha YZ250F was the last holdout and they quit holding out. Carb comparison on a dyno Sportster Motorcycle Air advice and/or how tos for Sporster and Buell motorcycle carburators, Electronic Fuel Injection (EFI), Air. WR250F Carburetion vs. The outright power on a dyno can not measure this for you. Way back in the day my pal had a Vette with Rochester injection in his shop. They have no control over spark, so they are only doing half of the job. i had injection on my suzuki. Do you want crank you car’s performance level up a notch? Many experts today feel that the only way to go is with aftermarket programmable fuel injection, but there are also folks who feel that computers are for the office, not for racing. I have done both. Imagine the surprise when Durrett explained that the engine in this video was nearly the same product as the engine featured previously. With an electronic fuel injection system, the required fuel amount for each RPM and engine load condition is located in the fuel map located in the ECU(or addition on a powercommannder). It only takes one bad experience to destroy one of our motors. Picture 11 – Install the new CV SE carb manifold. com for pricing on custom configured ACCEL DFI Pro Ram systems. After years of tuning, my own experience seems to have proven him right. And you might well be leaning it out, too. KLR650 Fuel Injection Project. FiTech EFI is dedicated to producing the most advanced and affordable EFI system on the planet. Electronic Fuel Injection Recently, we spoke with Mark Honsowetz, the EFI Product Manager of Edelbrock, about the Pro-Flo 4 Electronic Fuel Injection (EFI) for the LS engine and some of its advantages over a carbureted. What attracts me with EFi is that you get full control over injection and ignition, at your fingertips. The outright power on a dyno can not measure this for you. Many gasoline fighter planes used it in WW2. Carb’d Coyote Engine Project Goes Fuel Injected With AEM Infinity By Jason Reiss July 18, 2014 In the last installment on this Coyote project , the engine was on the dyno at Westech Performance in California with a Holley HP 750 carburetor and Rich Groh Racing Engines sheetmetal manifold on top. Hat Adapter to install Enderle, and Hilborn E Style Injection on 2 x 4150 Carbs Holley or Quick Fuel Carbs, Sign Me up for the RacingJunk Classifieds. Its design lends itself to have an unfair advantage in atomization. Thats a WHOLE lot more bsWe could argue points all day but I have my own belief just as hard as the carb only guys do. Spark table based on "load". and even then some compromises must be accepted. Find FiTech Go Street EFI 400 HP Self-Tuning Fuel Injection Systems 30003 and get Free Shipping on Orders Over $99 at Summit Racing! EFI conversions made easy--FiTech Go Street EFI 400 hp systems are true carburetor replacements. 95 flat rate shipping per whole order. 1972 240 carb to fuel injection conversion? Sign in to follow this. FiTech EFI is dedicated to producing the most advanced and affordable EFI system on the planet. Carburetor vs. Started by area1509, 08-25-2019, 02:43 PM. WR250F Carburetion vs. The need to hack away part of the frame is an obvious "show stopper. The fuel system consisted of a central fuel log (fed by the dyno EFI fuel pump) that distributed fuel to the. Custom Dyno and EFI Tuning Get the power as it was meant to be. It is true that when using fuel injection the difference between a single plane and dual plane becomes more manageable than with a carb and. An injection system is a proper air to fuel delivery ratio machine. How to Complete a Carb-to-EFI Fuel Injection Conversion · Throttle Body Adjustment www. At this point, going fuel injection is always your best bet if you want low maintenance and high reliability. Ron's Fuel Injection - 3249 E Milber St, Tucson, Arizona 85714 - Rated 4. Stage 1 engine details. Complainers had PRA outlaw fuel injection for super street. Dyno's Tuning Tips When you take your bike to a dyno for tuning by an "expert" why would you leave without it expertly tuned? When a Harley comes off the Doc's dyno, he wants you to have: Maximum torque and usable horsepower; Silky smooth power at all throttle openings. Tuner Log Software. Today, he's going to test some of the new EFI technology against his trusted double-pumper. [Throttle body fuel injection was added to the 2. Vespa Labs started as a Wiki in 2006 and for 9 years gathered random info from people's Vespa experiments and note taking. How much will it cost to install fuel injection and how long of a pay back will it be. Using our two brand new Superflow SF-902 Dynamometers we will run your engine for a complete break in cycle monitoring all engine vitals over the course of a few hours. A number in this column is an estimate in hours of the time it takes a skilled operator to perform a tune of both cylinders over the full range of rpm and throttle openings on a dyno equipped with dual AFR. The exact air/fuel ratio can be determined by dyno testing, with the ratio selected on the basis of the one that gives best torque. An I-6 with a poor carb, or a carburetor not well maintained will suffer more than other designs. carberators This is a subject that's been run up the flagpole so much that the information about it has turned to data. The final test was to replace the TPI system with a conventional carbureted intake. 2002 to 2005 models also require a Power Commander V module. After an expert calibration this 2 x 4 carburetion system, using two QFT 650 carbs, produced results close to that expected of fuel injection. But bottom line is HP is a result of "airflow-not fuel delivery method". First and foremost, fuel injection on four-stroke motocross bikes is a fait accompli. Imagine the surprise when Durrett explained that the engine in this video was nearly the same product as the engine featured previously. Number four have to change jets when changing exhaustsWith fuel injection I got rid of all of those problemswhats not to like about fuel injection?. Save for the different displacement (attributed to. All-new Keihin electronically controlled fuel injection systems delivers more linear power and easy start-up whether bike has been sitting or is hot on the. Kit installation and Dynamometer services are available in many parts of the world. The Mikunis were the clear winner in power, throttle response and fuel economy. 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 carburetor in the 1970s. engine was choking on a weak fuel delivery system and should really appreciate the Roush engineered, Accel DFI Gen 7 based, update. LSA BOY this is a big can of worms! A Pro Stock cam is over a inch of lift at the valve you have to spread the lobes, the valves have to seat at some point to run. Fuel System Kits. • Some single carb conversions have actually suggested and required frame “surgery” to achieve necessary clearances. Fuel Injection or Carb any actual numbers to compare? I am sure that for many it comes down what can I run in my state based on the registration process. Fuel Injected. 3L LS1 engine and throw in a few performance upgrades and test it with a carburetor and EFI computer tuned to see what horsepower we get. Many variables also affect what the 'best' timing is. This gives the ability of immediate fuel delivery on tip-in of the throttle. But if you’re a carburetor guy considering your first foray into fuel injection, this episode of Engine Masters is for you. Post subject: SCCA H Prod - 79 VW Rabbit Carb vs CIS Question. In 2012 we dyno tested a stock MGB with SU carbs. However, it doesn't matter what you're using as in the end the goal is the same. Just converting to HEI made a big difference in the late ’70s, think what direct injection, 6,7, and 8 speed transmissions, and computer controls could do. Sniper EFI Stealth 4500. Need tips on tuning your carburetor, converting your vehicle to propane fuel, or just need help. Featuring jet extensions and a notched float, tuning is exactly what you’d expect from a race ready carburetor. I'm good with carbs, but there is stuff you can do with efi that you just can't do with a carb. Dyno Video: FiTech EFI vs. The mechanical secondary and electric choke. We are also full R&D facility and offer custom in-house dyno tuning on our state of the art test cell and Dynojet 250i chassis dyno. This is the limitation of both the Speed Density and Alpha-N type fuel injection systems. accelerator pump Adjustments carburetor Carburetor Kit carburetor rebuild carburetor shipped Carter Carter Carburetor chevrolet choke choke plate Cruising ethanol Floats Ford Autolite Motorcraft Fuel Filter Fuel Injection Holley Marine Oxygen Sensor rebuilder removing choke plate Rochester shipping Stromberg throttle plate Uncategorized WA-1 weber. (Street porting is a technique where the engine is disassembled and the engine intake ports have been enlarged to provide improve air flow. First and foremost, fuel injection on four-stroke motocross bikes is a fait accompli. It is time for even the most diehard of classic muscle car tweakers and tuners to at least consider fuel injection when looking for upgrade options. More than likely what you will notice is increased performance at all elevation levels, easier starting, and better all around drive-ability. KTM and Husaberg Fuel Injection Gallery TPI vs Carb 250 and 300 Early Test Runs with TE250i and S3 Head. GL1100 with throttle bodies (Fuel Injection) This is where discussions of EFI systems, Dual Carbs, Single Carb mods and plans can be discussed and shared. A raised plenum floor increases flow velocity and fuel atomization. In virtually all ATVs, the electronic brain for the fuel-injection system is integrated with the ignition. Dyno Comparison Shafiroff 615 Twisted Low Deck-Carb VS HILBORN EFI-R Shafiroff Carb-Hilborn Dyno Results Graph click here Fuel Injection Engineering Co. i have seen just as many problems with injection as i have carbs,and for the $2000 price difference,no thanks ill keep my carbs! boils down to personal preference. Carburetor vs Fuel Injection General Motorcycling Discussion. Welcome to Fuel Moto USA! We specialize in EFI tuning components, exhaust systems, as well as a wide range of performance components. Not to knock the venerable carburetor, but we all know that fuel injection is the name of the game.