one Q 10 psi on stock compression is about equal to how many psi on 8.8 compression pistons. I got 218 HP to the wheels at 12 psi. is this about right with 91 octane peepee water?
thanks
james

Rest In Peace Heidi Doggy

You ran 12 psi on a stock bottom end? Holy shit-shingles. You must have one bad ass block there.

Brynden

no no!
i have a built bottom end. i was making 221 hp at the wheels with 10 psi on stock bottom end. after the rebuild i am making 218 hp to the wheels at 12 psi. so i was wondering if this is correct.
thanks
james

Rest In Peace Heidi Doggy

approx 4% for every point in compression

so fiqure 4% less from 9 to 8 correct
so 212hp on 8 compression
so your about perfect

1998 dodge avenger 4 cyl AT
Mods are:
Not enough

Stock compression at 10 psi you should be around 230HP to the wheels, so take 4 % off of that, you get 220.8 HP to the wheels at 10 psi. Your numbers are a tad bit low, but not a whole lot.. You should be around 240 HP to the wheels at 12 psi, or close to that anyway..

13.5 @108 MPH-2.2 60ft(stupid FWD!)
S16G @ 18 PSI/FMIC/Running on MegaSquirt II (Now with sequential
fuel injection)
My webpage: http://eclipsed4evr.home.comcast.net
-1998 Mitsubishi Eclipse RS-T- "Toy"
-1992 Plymouth Laser Turbo AWD(SOLD)
-2000 Honda CR-V(daily)

>>>You ran 12 psi on a stock bottom end? Holy shit-shingles. You must have one bad ass block there.<<<

I ran 16psi on the stock bottom and didn't break anything besides the piston that was already broke

hmm makes me wonder how much HP I'll get when I put my 10.5:1s in Must be good stuff! Hicomp turbo here I come! Now to get rid of this damn SPI gauge I"ll never hit 30 PSI!

http://www.hadesomega.info -car specz and movies 95 Eclipse RS | 76' 280Z | 89' MR2 | 99 Neon | 91 Zephyr
Who sez FF can't drift?

How long were you at 16 psi for?

Built 420a
NER turbo kit T3/T04s ball bearing
AFX UDP
Crane 0014 cams

Just the 40 minute drive home. Hit 16psi like 10 times or so.