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Since 2000 I have been involved with developing the Esslinger 161 cubic inch national midget motors. Using mechanical fuel injection we are achieving about 385+ HP.
5 years ago I became involved with the EFI used on 1000cc bike engines and learned a lot on the internet about tuning the 32 bit ECU used on Suzuki and Kawasaki motors.
I have a bone stock 2010 GSXR 1000 on pump gas at 191 HP. On alcohol it is 197 HP, using all stock components. This engine is only 61 cubic inches and is directly tunable from my lap top. Yamaha and Honda engines use an ECU that is very difficult to tune and require a Power Commander to trick the ECU for tuning the fuel.
I originally wanted to help low budget mini sprint racers convert and tune engines but both midwest mini sprint organizations started dicussing rule changes requiring box stock ECU. I quickly lost interest in the mini sprints and those that wish racing would be equal for everyone even those that are not technical.
Well we live in a technical world and I appologize for those who are intimidated by technology. Maybe they should just have fun and not worry about every other racer.
EFI injection is so supperior to the mechanical slobber systems. EFI produces 3.25 HP per cubic inch displacement. Mechanical produces 2.4 HP per cubic inch displacement.
Engine ECU's can be tuned to balance injectors, throttle position syncronization, ignition timing, rev limits, ram air trims, ambient air temp. and pressure adjustments, all from available free information available on the internet.
If USAC would allow the national midget engines to use EFI it would reduce engine costs $5-6,000. Most engine problems (costly failures) are tuning errors experienced with mechanical fuel systems. MDSI use to list injector and ECU's available with ignition controls for almost any engine.
I like the EFI and the results from lap top tuning. Would not consider mechanical unless regulated to do so.
My thoughts on EFI.
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