Hi guys,

I have bought some wiseco B18C1 pistons to put into my B18C5 block...the CR specs are 12:5 to 13:2...i really dont wanna be into the 13 because its gonna be a street motor and im not planning on runing on race fuel...so basicly i wanna stay into the 12:5-12:6 CR to be able to have it tuned perfectly on 94octane!!!

Is cometic making a thick gasket??? I was going to go with an OEM but im going 82mm so i think the OEM one wont be a good choice...

Please help me out on this guys

 

I have used gaskets that were .062" and .074" thick. Call Cometic or SCE Gaskets.

 

kidna hard to believe a 13:1 comp with some off the shelve pistons on a gsr @ 82mm without some milling....

8.25cc's usually net very high 11's low 12's...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Chris Tune &raquo;</TD></TR><TR><TD CLASS="quote">kidna hard to believe a 13:1 comp with some off the shelve pistons on a gsr @ 82mm without some milling....

8.25cc's usually net very high 11's low 12's... </TD></TR></TABLE>

Wiseco K593M82!!! between 12:5 & 13:2 as stated on their website!!!

Last year i was runing their 12:6 81.5mm one into my ITR block...with a spoon 2layer HG and an unmilled head i was at around 12:1-12:2 of CR!!!

My head was destroyed so i have no choice to milled it in the reconstruction process...i just wanna try to figure out how to get an average 12:5 CR with those pistons and be safe on 94octane gaz

 

Need help guys

 

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

Wiseco K593M82!!! between 12:5 & 13:2 as stated on their website!!!

Last year i was runing their 12:6 81.5mm one into my ITR block...with a spoon 2layer HG and an unmilled head i was at around 12:1-12:2 of CR!!!

My head was destroyed so i have no choice to milled it in the reconstruction process...i just wanna try to figure out how to get an average 12:5 CR with those pistons and be safe on 94octane gaz </TD></TR></TABLE>

i know the part number and the "supposed" comp ratios... measure and maybe you can really use a calculator to REALLY know your ballpark.

 

whats happen to the 81.5mm bore build very silimiar to my build and comp numbers thats y im asking

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 2001B18C1GS-R &raquo;</TD></TR><TR><TD CLASS="quote">whats happen to the 81.5mm bore build very silimiar to my build and comp numbers thats y im asking</TD></TR></TABLE>

Are you talking about my built of last year???

If yes ive dropped some valves back in august so im going 82mm now with some little other things to help me broke the 225whp mark

 

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

i know the part number and the "supposed" comp ratios... measure and maybe you can really use a calculator to REALLY know your ballpark. </TD></TR></TABLE>

Thanks