jdgpuller

what kinda power will the blocks and selves hold on a 2.2l should i bore it or keep the stock bore. I now the rods and pistons are rated at 250-300 and the crank at 500. I plan on putting 125shot nos on my cobalt after i change the rods and pistons out. Should i keep the 10.00-1 or drop it down to 8.9-1 i also and gona add the comp cams stage 2 and the 2.4 mini. any other ideas will help i also already have a cai and a header. with 2.5 exhaust

mjnordio

in b4 "nawzzz"

blackbirdracing

I wouldnt bore the 2.2,

I broke a sleeve on about 18# of boost.

Bored .020 over.

BlackCobalt707

iTrader: (5)

you broke the sleeves after you bored it? im upping my boost to hopefully 25 psi and im on stocks sleeves and im gettin worried lol

Spanky's Monkey

iTrader: (6)

meth is your friend, keep those temps down and those boost levels.

blackbirdracing

hahn 16G on 18PSI...

No sign of detonation..

Broke # 3 & 4 sleeve.

But I just picked up my darton sleeved block from the machine shop yesterday. to fix that!

NWAE Cobalt

iTrader: (1)

dont drop compression if you are going to use the cams and bigger intake mani...just wasting money at that point..if anything...up the compression