This connection between the spool and air valve normally includes an adjustable turnbuckle. $659.06. PLEASE READ THESE INSTRUCTIONS BEFORE INSTALLING YOUR FUEL SYSTEM. Linkage Kit SideSaddle Dual Carb, Parts Breakdown Basically you are drowning the engine. The "Enderle" Primer Plus (below) is used on hat-style injection units that utilize a 6-71 and 8-71 bolt pattern (13.25"). scr.type = "text/javascript";
Enderle Fuel Injection 37 degree AN Fittings Enderle Fuel Injection Motor Vehicle Manufacturing Simi Valley, California 16 followers } adroll_pix_id = "GGGXQ77VW5D5LL7AURJNOI"; BlownInjection TunnelRamInjection SingleButterflyInjection FuelLogDiagrams BarrelValveLeakdown PertinentSpecifications&Poop CarbLinkageInstructions FuelPumpTech SpringPressureChart. We will guide you through your first steps. Does not attract dust. Enderle Fuel Injection at Discounted Prices Enderle Fuel Injection Good Vibrations is the LARGEST authorized dealer in the world of Enderle Fuel Injection Products. For any additional information call 805-526-3838, Hours:Monday through Friday10am to 5pm CST Closed: Sat-Sun Closed: Holidays, 2023 Alkydigger.com All Rights Reserved, Setting up Unblown Engines Enderle Tunnel Ram, TBS BLOWERS - SUPERCHARGERS - DRIVES-- ACCESSORIES, MECHANICAL "HAT" INJECTORS - ENDERLE-HILBORN- JBR, MECHANICAL INJECTION MANIFOLDS - HILBORN-ENDERLE, ELECTRONIC FUEL INJECTION -PARTS-CONVERSIONS, Harmonic Balancers- Oil Pumps-Gear Drives-Crank supports- Jesel, TUNNEL RAM & SINGLE PLANE & COMPLETE SETUPS, Drives- Magneto , Fuel Pump , Distributor, ELECTRONIC FUEL INJECTION -PARTS-CONVERSION KITS. var google_conversion_format = "2";
fuel injection enderle: Search Result | eBay document.getElementsByTagName('script')[0].parentNode).appendChild(scr); 2023 Power Automedia. }()); var google_conversion_id = 1068215464; Have no fear. Once the basic setup is established, extra nozzles can be added to further enhance your engines performance. After pulling fuel from a vented fuel tank, the fuel is delivered through a barrel valve that controls the amount of fuel with the position of the air valve.
Enderle Bird Catcher Polished Alum. W/Shaft & Progressive Butterflies Once the system is primed, fuel is delivered directly to the engine for fast startup. if (d.getElementById(id)) return; Zoomie Headers. sidesaddle. Injector nozzles to inject the fuel into the air stream going into the engine. adroll_email = "sales@dragparts.com.com"; }(document, 'script', 'facebook-jssdk')); Injector can be sent back to Enderle and for $125.00 they will professionally install the linkage kit on an existing Bird injector. Some racing classes such as drag racings Nostalgia Top Fuel restrict the size of the fuel pump. })(window,document,'script','//www.google-analytics.com/analytics.js','ga'); All sales are final. m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m) Hours:Monday through Friday10am to 5pm CST Closed: Sat-Sun Closed: Holidays, 2023 Alkydigger.com All Rights Reserved, INSTALLATION IN ENDERLE BLOWN ALCOHOL INJECTOR, Setting Up Blown and Blow Through Engines, Setting up Blown Alcohol Engines Enderle, TBS BLOWERS - SUPERCHARGERS - DRIVES-- ACCESSORIES, MECHANICAL "HAT" INJECTORS - ENDERLE-HILBORN- JBR, MECHANICAL INJECTION MANIFOLDS - HILBORN-ENDERLE, ELECTRONIC FUEL INJECTION -PARTS-CONVERSIONS, Harmonic Balancers- Oil Pumps-Gear Drives-Crank supports- Jesel, TUNNEL RAM & SINGLE PLANE & COMPLETE SETUPS, Drives- Magneto , Fuel Pump , Distributor, ELECTRONIC FUEL INJECTION -PARTS-CONVERSION KITS. scr.type = "text/javascript"; ga('create', 'UA-214369-3', 'goodvibesracing.com'); Small 4-cylinder engines making 100 horsepower are easy to do in midget racing. Usually, a mechanical cable with linkage connects from the driver-controlled throttle, and the butterflies are adjusted with a throttle stop for idle. This product has to be used to be believed. A 2-way style shutoff will damage the fuel pump. } No responsibility whatsoever will be accepted by Koehler Injection for any damage, injury or loss resulting from their use. fuel injection as a launch control doesn't work. We promise not to use your email address for anything but exclusive updates from the Power Automedia Network. fjs.parentNode.insertBefore(js, fjs); This is especially common in racers with tilted engine installations such as dragsters and funny cars with engines often tilted down. Appointment Only.
Koehler - Enderle Fuel Injection hoses and tubing That is providing extra fuel for more power benefits at lower engine speeds and a whole new era of tuning tricks. 4011C31 . js = d.createElement(s); js.id = id; Whether it's a fuel pump, filter, or 3-way shut-off valve, the company has what to offer. On top of a 1071 BDS Blower.. Linkage Kits. We offer Koehler Enderle alcohol tunnel ram fuel injection, engine balancing, industrial, balancing, fuel injection flow bench service, Enderle pump repair, nitrous oxide.
adroll_adv_id = "CUHVY3OLUVBZPJTAWUVLYM"; Parts Breakdown Blown Linkage Kit SideSaddle Dual Carb Parts Breakdown TR Linkage Kit SideSaddle Dual Carb Blown Kits SBC TR Kits if (document.readyState && !/loaded|complete/.test(document.readyState)){setTimeout(_onload, 10);return} Linkage is added to operate the barrel valve spool or metering device from the air valve. Will Call by We have 415+ man years of combined experience. document.getElementsByTagName('script')[0].parentNode).appendChild(scr); Installation Instructions for (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o), > Alcohol makes more power and costs less per pass than Racing Gasoline. 37 were here. Blower lubers partial set, commonly in the rear of the blower.
Enderle Fuel Injection - Performance Wholesale PTY LTD if (!_fbq.loaded) { Because this rating is made at a specific fuel pressure and fuel pump speed, the 12 GPM value is sustained at lower pump speeds.
Single Butterfly Injection - Goodvibesracing.com nitrous system featuring air operated solenoids, Nitrousmaster software, automotive machine shop, All sales are final. This approach often makes us look more expensive than some but you actually wind up. A set of bypass jets is furnished usually 6 to 8. For idle-to-full-throttle drag racing, the fuel mixture is simple to control with jetting for maximum power. In addition to the main fuel injection parts, it also provides a variety of fuel lines, fittings, and hoses to complete the job. -16AN x -12 ORB fitting with Return Ports. Making a simple adjustment of idle speed on Enderle racing mechanical fuel injection hat. The linkage between the valve and the throttle shaft consists of a threaded turnbuckle, one end has a right-handed thread and the other has a left-handed thread. Don Jackson of Don Jackson Engineering, a former professional drag racing Top Fuel Crew Chief and engine builder and current Bonneville racer, reports power levels in excess of 10,000 horsepower from supercharged nitromethane engines with MFI. If you dont have a leakdown tester, we sell a nice one with -6AN and -8AN fittings listed under Tools and tuning aids .You will need one eventually,,,,might as well quit fiddling around. m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m) We carry an Extensive Line of Enderle Fuel Injection Components at DISCOUNTED Prices! Enderle Bug Catcher Fuel Injection mcsqL7 745 subscribers Subscribe 40 Share Save 29K views 12 years ago Changing the Nozzles and Fuel Pump out on a Bug Catcher. damage, injury or loss resulting from their use. Hose ends with tubular bends should be used instead to avoid flow problems.
Setting up Blown Alcohol Engines - Enderle - Alkydigger Items and services provided by Koehler Injection are, No responsibility whatsoever will be accepted by Koehler Injection for any. } Air filter on some installations such as those used in dirt track racing or on street-going vehicles. (function() { C $25.98 to C $36.17. var google_conversion_label = "-DXeCK6WxgcQqNmu_QM"; "https://s.adroll.com" : "http://a.adroll.com"); Select trigger inputs or elegantly kill the mag from the dash while keeping your trigger signal clean. The tank should have at least a 3 gallon capacity and should be vented with a 5/16 or larger hole. Adjustable heime end
}; A barrel valve or metering valve controls the appropriate amount of fuel for starting, part-throttle, driving, and stopping. In fact, MFI pioneer Stuart Hilborn of Hilborn Fuel Injection became the first driver to ever eclipse the 150 mile-per-hour mark at El Mirage Dry Lake in April of 1948 using a self-designed constant-flow mechanical fuel injector. Performance Wholesale Australia is an authorised distributor of Enderle Fuel Injection products. The check valve on the bottom of the metering valve is for the idle circuit and is set to open at 25 psi. if (document.readyState && !/loaded|complete/.test(document.readyState)){setTimeout(_onload, 10);return} }(document, 'script', 'facebook-jssdk')); Includes steel swing-over hook clamp and Grade 8 socket bolts. Choose quantity in "view orders" or at "checkout" . For nitro racing, that provides extra power at low engine-RPM from all of the oxygen in the nitro fuel mixture. Maintaining the air/fuel ratio by changing the main bypass is a simple method that leaves the rest of the engine nozzles untouched. All logos and images are reserved. Enderle Tech Make Tech Selection . _fbq.push(['addPixelId', '260825620774985']); var _fbq = window._fbq || (window._fbq = []);
Modern Disguise - A Guide to Vintage-Styled EFI Systems - Fuel Curve the 89386 adapter shown further down.
What You Need To Know About Mechanical Fuel Injection - EngineLabs Idaho.
Enderle Fuel Injection Australia | Linkage Kits | Fuel injectors CLICK HERE for Tech Pages COMPONENTS Break Down end design and needle bearings for smooth throttle operation. The Feb. 2005 Rodders Digest has an article about doing a Hilborn mechanical fuel injection on a street driver. var _onload = function(){ When running alcohol with an electronic ignition, the spark plug gap should be in the .020-.030 range. #2. 1: Flowed and set up for your combination 2: Flow balanced main jets 3: Flow matched nozzles 4: Polished stainless lines precision plumbed or hoses 5: Throttle Body (hat) 6: Manifold adapter 7: Specialized Hi Flow, Nitro style Barrel Valve 8: Idle, secondary & Hi Speed controls as needed Billet aluminum cable bracket designed for Enderle Fuel scr.src = host + "/j/roundtrip.js"; Vibrations is Your Injection Connection! The check valve in the tee fitting is the main jet return and opens at 1-2 psi. Check your flow sheets for verification. PSI screw-blown 500 cubic-inch V8 engines on methanol report power levels over 4,000 horsepower, and methanol has other benefits.
lots of enderle fuel injection questions | Yellow Bullet Forums }(document, 'script', 'facebook-jssdk')); We are typically open M-F if (!window.__adroll_loaded){__adroll_loaded=true;setTimeout(_onload, 50);return} Alkydigger Fuel Injection-Superchargers-Ignitions: Enderle Fuel Injection Set Up and Plumbing Instructions Mechanical Fuel Injection-TECH Setting Up Blown and Blow Through Engines Enderle Fuel Injection Set Up and Plumbing Instructions Enderle Fuel Injection Set Up and Plumbing Instructions Shop Parts While methanol and nitromethane are common fuels, other fuels such as ethanol or race gas can also be used in mechanical fuel injection. (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o), _fbq.loaded = true; Industry: Fuel systems and parts, motor vehicle Printer Friendly View Address: 1830 Voyager Ave Simi Valley, CA, 93063-3348 United States All logos and images are reserved. All Text and images on this website are copyrighted by David Koehler 2000, All sales are final. Kinsler Fuel Injection founded by Jim Kinsler in 1967 has been supplying the High-Performance and Racing World with the Highest Quality fuel injection systems and components. fbds.async = true; All engine nozzles comprise the fuel system jetting. 4: Polished stainless lines precision plumbed or hoses, 7: Specialized Hi Flow, Nitro style Barrel Valve, 8: Idle, secondary & Hi Speed controls as needed, 14: Computer print outs (not just #s on a card). Use a smaller bypass to richen the fuel mixture and larger bypass to lean it. We pride ourselves on providing a Fuel Injection that is as "plug and play" as possible. With those nozzles and that bypass pill, I show you're putting about 2.8 GPM into the motor at about 86 PSI. This decreases fuel to the engine in higher engine RPM levels where the volumetric efficiency may fall off, reducing the amount of air demand per revolution. Brand New. Vibrations is the LARGEST authorized })(window,document,'script','//www.google-analytics.com/analytics.js','ga'); offers maximum torque & HP, reaction time and repeat ETs. Buy It Now. In this system, idle air volume is set with a throttle stop. var google_conversion_value = 0; Spring pressure in the idle control valve sets the fuel volume as shown. Downloadable installation instructions: (click on pic) Tunnel Ram or. https://www.alkydigger.net/proddetail.php?prod=LeakdownAD link to tester, Setting and Leakdown Procedure for Enderle Barrel Valve **NEW** Major Changes Added, TBS BLOWERS - SUPERCHARGERS - DRIVES-- ACCESSORIES, MECHANICAL "HAT" INJECTORS - ENDERLE-HILBORN- JBR, MECHANICAL INJECTION MANIFOLDS - HILBORN-ENDERLE, ELECTRONIC FUEL INJECTION -PARTS-CONVERSIONS, Harmonic Balancers- Oil Pumps-Gear Drives-Crank supports- Jesel, TUNNEL RAM & SINGLE PLANE & COMPLETE SETUPS, Drives- Magneto , Fuel Pump , Distributor, ELECTRONIC FUEL INJECTION -PARTS-CONVERSION KITS. We offer Koehler Enderle alcohol tunnel ram fuel injection, engine balancing, industrial balancing, fuel injection flow bench service, Enderle pump repair, NitrousCharger alcohol nitrous system featuring air operated solenoids, Nitrousmaster software, automotive machine shop and welding services in Urbana, IL Enderle Fuel Injection Specialist. Racecar Engineering is proud to distribute and support the entire Enderle Fuel Injection product line.
Enderle Fuel Injection | LinkedIn var google_remarketing_only = false; All Text and images on this website are copyrighted by David Koehler 2000 and beyond. Koehler Injection stocks AN, JIC, hi flow flare fittings for tunnel ram, stack, blower fuel injection. var host = (("https:" == document.location.protocol) ? Holley double pump carbs, Dominators, Predators & Carters mounted ga('send', 'pageview'); Site Map | Performance Products | Pre-Owned Parts | Press Releases | Technical | Photo Gallery | Special Events | Contact Us, We STOCK the following performance race products: Aeromotive, Billet Connection, The Blower Shop (TBS), Control Cable, Deist Safety, DJ Safety, Enderle Fuel Injection, FIE, IMI Hi-Torque, JAZ Products, Lucas Oil, Mallory Ignition, Milodon, Prolong, SCE Gaskets, System 1 Filters, Total Seal Rings, Wilwood and XRP Plumbing. A 2-way style shutoff will damage the fuel pump. So, a 350" motor would be: 350 * .07 = 25%. }()); var google_conversion_id = 1068215464; }(document, 'script', 'facebook-jssdk')); One set is for the throttle body or hat (if so equipped), and the other set is for the manifold ports. Fuel is drawn from the surge tank by an engine-driven injector pump (5), which delivers the main fuel feed to the barrel valve (8) through a high-flow inline filter (6) and shutoff valve (7)..
Enderle Bug Catcher Fuel Injection - YouTube Alkydigger Fuel Injection-Superchargers-Ignitions: Enderle 80A Fuel Location. js = d.createElement(s); js.id = id; fbds.async = true; Normal installations involve a fuel pump about 25- to 50-percent larger than the engine demand. Economical, compact and extremely versatile. The Enderle Fuel pump Rotation can be identified and reversed, as needed. A gasket or silicone seal must be used on the bottom of the injector. 12 oz goes a long way.
Enderle Fuel Injection at Discounted Prices }(document, 'script', 'facebook-jssdk')); We are typically open M-F To richen the idle, rotate the turnbuckle towards the rear of the injector, (shortening the linkage leans the mixture, lengthening richens the mixture).
Enderle - Pit Stop USA }(document, 'script', 'facebook-jssdk')); We are typically open M-F rams. A set of bypass jets is furnished which includes a jetting card showing the engine information and settings. else {window.attachEvent('onload', _onload)} if (d.getElementById(id)) return; scr.src = host + "/j/roundtrip.js"; A strong advantage of MFI is its adaptability to different cylinder configurations. js.src = "//connect.facebook.net/en_US/all.js#xfbml=1"; A blank bypass jet is installed under the 9/16 hex plug on the metering valve and should not be removed. Sponsored. If your injector was shipped directly from the factory, it should be set up for your application. Some setups use two sets of nozzles. Finding and maintaining the optimum air/fuel ratio for your setup is the simplest way to determine bypass jetting values for optimum tuning. For example, in Nostalgia A-Fuel drag racing, class rules in the USA specify a fuel pump of approximately 12 GPM. The barrel valve on this blown alcohol engine shown with additional fuel pathways for various drag race tuning functions: starting, burnout, staging, launch, and high speed lean-out. The idle mixture is controlled by the turnbuckle on the side of the injector. With the inlet opening facing down at 6 o'clock, the V Notch in the cover should be at 9 o'clock for Belt Drive Rotation or Rear Cam Rotation ( Pump turns Clockwise when turning the Hex Shaft) Mechanical fuel injection, with stacks, on a V8 street rod engine. This site has been created & maintained by Good Vibrations Motorsports. Throttle body or hat, to throttle the air. The butterflies and metering valve are set before shipment. This site has been created & maintained by Good Vibrations Motorsports. Bob and Jennifer maintain a blog at their websites in addition to co-writing articles for various auto industry resources. Some boat engines are tilted down or up to line up with the propeller drives that benefit from extra nozzles in the ports to control fuel distribution. up a -6 bypass and use a jet. Air is controlled with butterflies in a fuel injection hat or manifold. Considerations include low manufacturing cost and ease of subsequent maintenance. var s = document.getElementsByTagName('script')[0]; Illustration of mechanical fuel injection expanded with the addition of an idle control circuit, barrel valve, and multiple nozzles feeding a throttle valve hat assembly. Injection Tall Injector (Big & Ugly), Buzzards, Zoomie Headers. service, Enderle pump repair, nitrous oxide systems, NitrousCharger alcohol nitrous system featuring air operated solenoids, Nitrousmaster software, automotive machine shop and welding services in Urbana, IL. ENDERLE FUEL INJECTION AUTO RACING DRAG RACE HOT RAT ROD BLACK OR WHITE T-SHIRT. Mechanical fuel injection works well for naturally-aspirated or forced-induction engines and handles most any type of fuel gas, ethanol blends, methanol, and even nitro blends. Lubricate your fuel injection pump, barrel valve, shutoff, check valves, butterfly shafts, cable linkage, electrical connections, Heim joints, any bare surface, etc. The cause is that you are on 100% barrel valve opening and the pump is putting out whatever gpm it does at that particular rpm. Pressure gauges or transducers for data recording. 8am-4:30pm PST +C $26.11 shipping. All Text and images on this website are copyrighted by David Koehler 2000 and beyond, Remove EFI bungs (if required) $150.00, Weld in nozzle bungs (if needed) . $150.00, Port Match manifold to your gasket choice $250.00, Other labor options and modifications are listed on the, The SHORT version, BAU 2 (8-1/4" height) is available with Butterfly sizes: 5.000" or 5.562", The TALL version, BAU 1 (10-3/4" height) is available with Butterfly sizes: 5.000" or 5.562", The MEDIUM version, BAU 3 (9" height) is available with. Zoomie Headers. When the butterflies are opened, providing more air to the engine, the barrel valve is opened, providing more fuel to the engine. if (window.addEventListener) {window.addEventListener('load', _onload, false);} In these setups, an oversized fuel pump delivers more fuel than the engine needs. Birds, Bugs, etc and Carbon Fiber Hats. Kits come with instructions to make assembly fast and easy. dealer in the world of Enderle Fuel Injection var s = document.getElementsByTagName('script')[0]; The main bypass jet is installed in the fitting under this check valve. Right this minute hip hot rodders are buying used Hilborn, Crower and Enderle mechanical-fuel-injection manifolds and converting them to EFI. })(); Each fuel injector is furnished with a set of bypass pills. It includes an electric fuel pump, fuel solenoid, 40" injector hose, a 3/4" CNC aluminum plate with dual custom spray bar/injector, needle valve assembly and a toggle switch. Prices! ((document.getElementsByTagName('head') || [null])[0] || This metering system uses two return lines, each with a check valve. Loosen both locknuts and turn the turnbuckle. Retighten the locknuts. We carry an Extensive Line (function () { For naturally aspirated setups on methanol with the proper 1-3 PSI idle check, 7% of the engine size is always danged close place to start.
The engine goes rich, the cylinders go cold and the launch is junk. Alcohol Barrel Valve. adroll_email = "sales@dragparts.com.com"; > Response is instant at low or high rpm. Build your own custom newsletter with the content you love from EngineLabs, directly to your inbox, absolutely FREE! Products. Details Magneto Kill-Switch Super safe and specially rated for reliable duty Details Fuel Return Manifold Our very own little manifold comes hard anodized and loaded with whatever fittings you need. Bob is a retired welding engineer and author of 6 books about mechanical fuel injection engine tuning at RaceCarBook.com. This bypass controls the fuel mixture at full throttle and has very little effect on the idle. fbds.async = true;
Tunnel Ram Injection For best results the fuel pump should not be higher than the fuel level in the tank. For starting and idle control, an idle circuit is normally provided to the system. Most of the components are hard anodized black for durability. Hours:Monday through Friday10am to 5pm CST Closed: Sat-Sun Closed: Holidays, 2023 Alkydigger.com All Rights Reserved, Setting Up Blown and Blow Through Engines, Enderle Fuel Injection Set Up and Plumbing Instructions, TBS BLOWERS - SUPERCHARGERS - DRIVES-- ACCESSORIES, MECHANICAL "HAT" INJECTORS - ENDERLE-HILBORN- JBR, MECHANICAL INJECTION MANIFOLDS - HILBORN-ENDERLE, ELECTRONIC FUEL INJECTION -PARTS-CONVERSIONS, Harmonic Balancers- Oil Pumps-Gear Drives-Crank supports- Jesel, TUNNEL RAM & SINGLE PLANE & COMPLETE SETUPS, Drives- Magneto , Fuel Pump , Distributor, ELECTRONIC FUEL INJECTION -PARTS-CONVERSION KITS. Appointment Only. Enderle Fuel Injection- Please school me! All text and material are copyright 1989-2023 by Good Vibrations Motorsports. Good Vibrations Motorsports. var js, fjs = d.getElementsByTagName(s)[0]; We ship worldwide daily! Each Enderle fuel injector is furnished with a set of bypass pills. var google_conversion_color = "ffffff"; -12 line to an 80-1 pump..from there i have a 3 way shutoff valve..the top of the shut off valve is a -6 line teed off with one of the return lines from the metering block that goes back to the inlet of the pump ..the right line on the 3 way shut off valve goes into the inlet side of metering block.and the 2nd return line also taps into the . Changing the size of the main bypass jet is one way to tune a mechanical fuel injection setup, as a bigger jet leans the engine while a smaller jet richens the engine. A # 10 inlet line can be used with a 0 or a size pump, although a # 12 line will work with the smaller pumps also. A gasket or silicone seal must be used on the bottom of the injector.
Frequently asked questions about Crower policies and technical information Good _fbq.loaded = true; An inlet restrictor limits the fuel pump output back to the 12 GPM value. var google_remarketing_only = false; if (!window.__adroll_loaded){__adroll_loaded=true;setTimeout(_onload, 50);return} For most any configurationsuch as inline, V-style, opposing, or rotary enginesmechanical fuel injection can be easily adapted to the various different cylinder locations.
Enderle Fuel Injection vs Bill L Jones | Court Records - UniCourt Fuel Pump Collar - 4-Bolt / 1 screw, Enderle. MFI systems with alcohol or nitro fuels, combined with forced induction can provide extremely high power levels. Always set butterflies BEFORE you perform your leak down test. This site has been created & maintained by Good Vibrations Motorsports. (function () { Jennifer Szabo is the creator of AirDensityOnline.com, an online resource that assists racers in tuning their engines. To compare, electronic fuel injection (EFI) works with a similar air valve although it may be throttle controlled or controlled electrically. Do not change the bypass jet to cure problems at idle. fjs.parentNode.insertBefore(js, fjs); Racers with a little bit of MFI knowledge regularly exceed extended performance goals. If you are going alcohol racing there is only one way to supply air and fuel and that is with a. Koehler - Enderle tunnel ram Fuel Injection. 8am-4:30pm PST js = d.createElement(s); js.id = id; Other racing performance uses Bare chassis, Bare aluminum, machined surfaces, shop machines and on and on.