Can so one tell me which is a usdm gsr cam n whish is a jdm cam?
here are the pics
Probably worth some more googling or searching on H-T… but a quick google search turned up this: http://honda-tech.com/showthread.php?t=2256176 Looks like the cams in your first picture are 92-93 GSR cams.
it does looks the same but if you look closer it has 1 engraved ring on the intake side and the b17 intake doesnt have it. and on ht site you posted side the jdm b18c sir and usdm gsr are the same cam profile??? correct me if im wrong. and yeah it still doesnt answer my question on which one is the jdm cam n the other usdm cam.
Oh, I see what you’re talking about with that “engraved” ring. As for the usdm and jdm DC2 cams… I’m not sure if they are the same, but I wouldn’t be surprised. Spend some time searching on H-T, I’m sure you can find the answer there in under an hour. Better than waiting days for someone to chime in here with some links that confirm either way.
will do 
you dont by any chance know where to do a compression test on the web? i’ve seen it before and i forgot how i got there.just asking becuz i want to get ctr piston and i wanna know what my compresstion would be in a b17 block n head frgt
you mean the estimated compression ratio? or actual compression. compression test uses a gauge.
o never mind i searched like crazy on yahoo lol and found this
http://www.zealautowerks.com/bseries.html
I think i got it off of honda tech, not sure but it helps alot! better then the simple