I've got a Type R with Skunk 2 Stage 2 cams, plus all the other natural upgrades that come with these, as well as hondata. I'm looking to up the compression on it a bit by putting ctr pistons. I know that they wont fit other rods, but I'm not sure if civic r pistons will fit integra r rods. If they do, then i'm assuming the bore will be right as well? Thanks for your help.

 

slap them on (well heat and press them)

have done this about 50 times

 

They fit ITR rods fine. You would probably be better off getting the oversized CTR pistons and boring the cylinders so there arent any ring sealing issues, plus a bit more displacement.

 

oh what are the oversized ctr piston sizes and what would i bore the block to?

 

stock ctr piston=81.00mm
oversize ctr piston = 81.25mm

 

ok, so if i took my oversized ctr pistons to any machine shop and said do what you have to get the rings to seal right they should have no problem correct?

 

edit- well you have to them that your piston is 81.25 mm

 

lol ok thanks, sorry for so many specific little questions, but i dont want to attempt to do it myself and i want to make sure on everything i'd have to do before i purchase them.

 

I've got CTR overbore pistons for sale....used for only 1000 km

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by xonefastackx &raquo;</TD></TR><TR><TD CLASS="quote">I'm looking to up the compression on it a bit by putting ctr pistons.</TD></TR></TABLE>

Just also be aware that CTR pistons in an otherwise "stock" (meaning no modifications that would affect compression) ITR motor will raise the compression ratio more than "a bit".

 

lol yea i'm looking to manage about 12.3:1 with those and a 2 layer headgasket, so it is probably a little more than a bit, but thanks for looking out

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by xonefastackx &raquo;</TD></TR><TR><TD CLASS="quote">lol yea i'm looking to manage about 12.3:1 with those and a 2 layer headgasket, so it is probably a little more than a bit, but thanks for looking out</TD></TR></TABLE>

a setup like that would put you in the 13:1 range

 

are you sure? i put it into the cr calc and got 12.28.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by xonefastackx &raquo;</TD></TR><TR><TD CLASS="quote">are you sure? i put it into the cr calc and got 12.28.</TD></TR></TABLE>

i used http://www.zealautowerks.com

 

hmmm yea i see now. well that one is a lot more specific then the one i used, so maybe not everything was covered, i used http://www.bojangs.com/calculator/