anybody good at injector bullshit?
#1
anybody good at injector bullshit?
i used to be good at math in school, but my lack of practice makes me come here for my answer. i have a z6 revving to roughly 7500rpm shooting for 400hp with about 25psi. what injectors do i need? 800cc be good?
#3
Re: anybody good at injector bullshit?
Yeah I think 750cc's are plenty. Precision makes high imp 660cc's that are supposed to be good to like 440 at the crank and their only $260 shipped from LSD and they'll be easier to to work with at idle.
#5
#6
Re: anybody good at injector bullshit?
i tried that a fwe days ago and came up with 800cc. that seemed a bit overkill to me, but i guess its better to have too much than not enough. idle smoothness isnt a huge concern as long as it will idle
#8
Re: anybody good at injector bullshit?
from what i have read injectors shouldnt be run above 80% duty cycle so thats what i set it on the calculator. i dont mind running 800cc injectors, i will deal with a not so nice idle. i just dont want to be pushing the injectors to the limit all the time or not have enough for the power level.
#9
Re: anybody good at injector bullshit?
I came up with 720cc's for 400hp @ 80% duty cycle and 0.55 BSFC, and 680cc @ 85% duty cycle. I usually go with 0.55 for BSFC on forced induction setups, RC's site lists to use 0.60 though which seems a bit higher than normal (most n/a honda's run at 0.45 bsfc) but would land you around the 800cc mark.
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12-10-2005 08:54 PM