97egl
Proven Member
- 721
- 445
- Feb 6, 2014
-
Brownsburg,
Indiana
So this is just theoretical and I'm looking for constructive criticism. ("Get a Turbo" is not constructive criticism nor possible for the class of car I am running)
My theory is that since Gas stoich is 14.7:1 and E85 stoich is 9.7:1 an e85 engine requires 1.5 times the fuel that the same engine running regular gas needs. A 4g63 NT engine uses 240cc injectors so if I could find injectors with the correct impedance that are around 360cc or a little higher I believe I could possibly run E85 without any tuning required. Obviously I would need to upgrade the fuel pump to handle more fuel to at least a turbo pump.
Is this Idea total garbage? Or does it just have some flaws that could possibly be worked out? Am I even correct in assuming that a 360cc injector would actually deliver 1.5 times more fuel than a 240cc injector?
Thanks for any help guys.
Figured I'd add an explanation of WHY I want to do this below
I am making more power on an N/T circle track car by bumping compression up around 12:1 which I have to run 110 race which is not cheap and I go thru a lot of gas. Probably 60 gallons a season so I'd like to run e85 if I can do it cheap enough and save me from having to buy race gas at about 8 bucks a gallon. Car is supposed to be stock so I can't run an aftermarket ecu which they check for. They've never checked for compression or fuel type and for anyone to compete against guys running factory 200hp Sentra SE-R Spec-V cars you just have to cheat.
My theory is that since Gas stoich is 14.7:1 and E85 stoich is 9.7:1 an e85 engine requires 1.5 times the fuel that the same engine running regular gas needs. A 4g63 NT engine uses 240cc injectors so if I could find injectors with the correct impedance that are around 360cc or a little higher I believe I could possibly run E85 without any tuning required. Obviously I would need to upgrade the fuel pump to handle more fuel to at least a turbo pump.
Is this Idea total garbage? Or does it just have some flaws that could possibly be worked out? Am I even correct in assuming that a 360cc injector would actually deliver 1.5 times more fuel than a 240cc injector?
Thanks for any help guys.
Figured I'd add an explanation of WHY I want to do this below
I am making more power on an N/T circle track car by bumping compression up around 12:1 which I have to run 110 race which is not cheap and I go thru a lot of gas. Probably 60 gallons a season so I'd like to run e85 if I can do it cheap enough and save me from having to buy race gas at about 8 bucks a gallon. Car is supposed to be stock so I can't run an aftermarket ecu which they check for. They've never checked for compression or fuel type and for anyone to compete against guys running factory 200hp Sentra SE-R Spec-V cars you just have to cheat.