h22silvia

my set up is h22a turbo on 7 psi. i was racing a sti smoke it by five car lenghts and miss shift from 4th to 2nd but i took it out really fast.the car wont stay on idle it dies out but its still holding boost. wat could be the problem. so check the compression its 140 140 0 140. there wasnt any compresion from the cylinder number 3. so i pull the head off. theres no scratch on the walls theres no play with the pistons. im thinking bent valve but would like to knw some feedbacks about this

boostedcivicsir

with the cams out tilt the head up so the intake ports face up. pour some gas into the porst, see if it passes the valves. do the same on the exh side.

was the t-belt timed correctly??

PrecisionH23a

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by boostedcivicsir &raquo;</TD></TR><TR><TD CLASS="quote">with the cams out tilt the head up so the intake ports face up. pour some gas into the porst, see if it passes the valves. do the same on the exh side.</TD></TR></TABLE>

Yep. Parts cleaner works well too. My bet is a bent valve.

h22silvia

thanks alot for the info. jus pull my head off and found out 11 valves were bent. now i just ordered a complete valvetrain.i was wondering with crower cams it should be fine and also replacing my pistons and rods would this be fine on close deck sleeves for about 400 whp

jdizzle!

guess the sti beat you then I think you should be fine with the OEM cams. I'm making 450 on my h22 with them. also are you talking about replacing your pistons/rods for other oem ones? if your thinking about aftermarket ones, then you will need to get the block sleeved.


Modified by jdizzle! at 7:19 AM 5/3/2007

h22silvia

does it need to be sleeved if i put je pistons 9:1 and eagle rods i got a close deck btw

PrecisionH23a

You cannot run forged pistons with the FRM cylinder walls. So to answer your question, no.