i know this is a dumb question but i need to find a site that sells pistons that are close to stock compresstion ratio 10:1 or 10:5.1. i need it forged and its for a gsr O/S .20 . any info is helpful thanx

 

Check the sponsors forum. There are plenty of vendors that sell forged pistons. You'll want 81.5mm(the eqivalent of .020 oversized), unless you really do mean .20 which is like 85mm. Most manufacturers ofter a variety of CRs, and should have one that's close to stock.

 

could you post a link cuz i was in there all day yesterday and i couldnt find any in the comp ratio that i wantedd

 

Wiseco has a piston that yields 9.7-10.2:1 CR in a GSR. The part number for the 81.5mm application is K542M815, and you can get that through anyone who carries Wiseco pistons, including the numerous vendors in the sponsors forum. JE makes a 9.8:1 CR piston, part number 176450, but you have to buy rings seperately. You can also get those through any JE vendor. I'm sure the other popular manufacturers like CP and Arias also make applications close to what you're looking for, you just need to do a little searching or just ask the vendors what CRs are available.

 

Check out Arias pistons. They got some. Go to exospeed.com . I got some Ls/Vtec pistons from them