Quick question, I have only worked with aftermarket Rod and pistons (EAGLE, Wiseco, JE, CROWER......)

How are the factory pistons held in place? Is the pin press fit or is there a clip?

I think I'm going to swap in CTR pistons in place of stock ITR.
Any thoughts.

Mattj

 

they are hold by pressure. you will have to heat them up and press them out i have those pistons on one of my clients car thay are awesome any questions just let me know

 

stock rods are annealed.

usually the machine shop presses out the pin.
takes the rod heats it up and proceeds to insert the new wrist pin.
as it cools the rod pinches the wrist pin while the pistons stays
floating.

 

You're used to a full-floating design where the wrist pin floats in the bushed end of the conrod and the piston.

With stock rods, only the pistons float on the wrist pin. The wrist pin is interference fit into the small-end of the conrod.

 

CTR's are like 12:1 plus. Not sure what you're going for, but i'd just go with B16A pistons and a 1 layer headgasket. It'll be similar compression, but save you some cash.
Yea, and to answer your question, those last 3 posts did it.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mike K &raquo;</TD></TR><TR><TD CLASS="quote">CTR's are like 12:1 plus. Not sure what you're going for, but i'd just go with B16A pistons and a 1 layer headgasket. It'll be similar compression, but save you some cash.
Yea, and to answer your question, those last 3 posts did it.</TD></TR></TABLE>

Because I am useing the P&P head from my 2.1L The cambers are opened to 46cc now instead of 42.7. (On a stock ITR block my CR is 9.9 with this head) I also do not want to run a gasket any less than .030 because I am little leary of vavle relief on the pistons for the 014 Crane cams.

I have looked at the B16As and it looks like the route I'm going to take at this point.

Does anyone know if the C-speed compression calculator is correct?

http://www.c-speedracing.com/h...c.php

Mattj

 

have looked at the B16As and it looks like the route I'm going to take at this point

or you could just step up and boost that bucket.....