hello everyone, im running ctr pistons on my 98 gsr, just want to know if I'll be OK if i go for stage 2 cams, is there a risk to piston to valve clearance?....i heard the clearance is like you can fit a nickle through the pistons and valve when its TDC?, is this true?...

 

CAN SOMEONE ANSWER THIS

 

what cams? stage 2 is so vague....

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CW_98gsr &raquo;</TD></TR><TR><TD CLASS="quote">CAN SOMEONE ANSWER THIS</TD></TR></TABLE>

they were waiting for you to search.....

https://honda-tech.com/zerothread?id=644911

https://honda-tech.com/zerothread?id=1225151

https://honda-tech.com/zerothread?id=1623061

https://honda-tech.com/zerothread?id=1616749

 

every engine is different. do yourself a favor and check

 

We're running a similar setup in our hatch. We got CTR pistons in our GSR block,head milled .040 and Bullfrog cams and were running fine. I would clay the motor and see how your clearences are though. Every setup is different.

 

The shop I go to regularly has run a P72 block with PCT pistons, PR-3 head with JUN 4 and Toda C cams and had PLENTY of clearance. Mind you, this was with a 3 layer head gasket, head had never been milled before either. BTW, this car competed in a past Super Street Time Attack event in the past and actually did quite well for a N/A mild tune setup. They did however, CLAY the motor first to find out that there was plenty of clearance.

 

out of curiousity, what actual measurement in either metric or american units constitutes "plenty" of clearance?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Supahr_Ed &raquo;</TD></TR><TR><TD CLASS="quote">

they were waiting for you to search.....</TD></TR></TABLE>

I agree. If you're too lazy to research, then you shouldn't get the cams.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Bense &raquo;</TD></TR><TR><TD CLASS="quote">

I agree. If you're too lazy to research, then you shouldn't get the cams.</TD></TR></TABLE>

I don't know what method they used. My definition of plenty of room though would be that Dough is still thick enough to hide the piston dome.

 

for your information, .050" intake and .080" exhaust are fairly tight yet safe clearances. measureing this with clay to any degree of accuracy is not so easy. indicators and check springs are much more consistent.