what compression are the high rollers running?
#1
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what compression are the high rollers running?
Getting custom pistons over winter. Seeing what some people are running. Will be ported head, tuner2/itr cams, gsr stroke, 84.5mm and hta3786.
#2
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Re: what compression are the high rollers running?
That's subject to use of the car. Considering you're using an expensive item like the FP3786, I'd say anything 9.0:1 and over are pretty good for a honda with such a large turbo.
Guess I'm trying to figure out what you're really asking
Guess I'm trying to figure out what you're really asking
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#15
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Re: what compression are the high rollers running?
Is 11:5 considered to still be rather high even with e85 as a fuel source for a boosted application making that kind of power?
Ive seen alot of 10:1, 10:5, or 11:1 set-ups but ive never seen any build using higher than 11:1 comp w/e85 or pump gas that is driven other than pure track cars.
Just curious for my own build....ive got 11:5 pistons laying around ATM but thought they would be "too high" comp for a car seeing alot of street miles...but the higher comp would be nice for guys running larger t4 turbo's and wanting that quicker spool or engine response while off boost...
Thoughts?
#16
Honda-Tech Member
Re: what compression are the high rollers running?
i'll stick to my sub 9.5:1cr....i can pump 91 into it and not worry about it...or run 94oct pump and run high enough boost that will be plenty powerful enough.
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Re: what compression are the high rollers running?
GSR w/ls crank eagles/srp's - 9.6:1 comp
sc60e turbo, spa cast top mount
CTR cams, supertech valve, omni springs, stock port head
victor IM, STR 70mm TB
406whp on 93 pump
car runs great out of boost, very snappy throttle responce, throttle responce will pick up from a TB and good ignition system over a few tenths in compression
sc60e turbo, spa cast top mount
CTR cams, supertech valve, omni springs, stock port head
victor IM, STR 70mm TB
406whp on 93 pump
car runs great out of boost, very snappy throttle responce, throttle responce will pick up from a TB and good ignition system over a few tenths in compression
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Re: what compression are the high rollers running?
last year we did 9to1 at 460whp and 93 oct.
This year will be 10to1 and 500+ on 93 oct. and 750+ on race fuel
This year will be 10to1 and 500+ on 93 oct. and 750+ on race fuel
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