Couple of quick ?'s

What kinda compression ratio would I have with these pistons? I would be using a Honda headgasket, is NOT milled.

Does Anyone here know if I would have valve clearance issues with Crower 63402 cams and the USDM ITR pistons.

Thanks.

 

you will have nice and low c/r of around 9.7:1 ( almost just like the d16y8 in the EX coupe)

there should be no clearance issues.

do yourself a favour and run the PCT (b16b) CTR pistons if you can that should put you at 10.8:1 or so. more aggressive cams require higher compression.

 

I thought it would be around 10.6 - 10.8

 

 

No way does ITR pistons make the CR that low. The stock is higher than that. I would assume you're keeping stock rods. It is almost exactly the same as stock actually, 10.2:1. If you run the pct pistons and spoon headgasket your CR would be 11.17:1 or so.

s


[Modified by stevel, 5:17 PM 4/4/2003]

 

http://www.c-speedracing.com/howto/c...c/compcalc.php

 

Thanks for the link

 

all you have to do is go to c-speedracing.com like already stated to get the different C/R's.

people have to remember that the B16A pistons are the highest domed B series pistons, other than the CTR/B16B pistons (which most use for a higher C/R).
the USDM B16A is 10.2:1 and the JDM B16A is 10.4:1 C/R. so with the JDM B16B pistons in a B16A the C/R goes up to 10.8:1, which was already mentioned above.

just because it's a Type R piston doesn't mean it's going to give a higher C/R than the stock SI pistons. the JDM ITR pistons are almost identical to the B16A pistons so you still get 10.2:1 C/R if you swap them out and leave everything else the same, including the HG thickness.