Originally posted by mpg9999
FI and High compressior are not doing the same thing. With FI, your actually adding more air. A higher c/r ratio just increase the BMEP.
i still dont understand BMEP.
one thing i have noticed, my 8.5:1 15psi motor loved to max out my 550cc fuel injectors. my 11:1 15psi motor stuck them at 74% duty cycle with the same a/f ratio.
then on another motor with same interals just changed to a huge turbo, it required less duty cycle out of the same size injectors than my smaller turboed motor. we both had the same car and same setup, he just had a bigger turbo.