ok i'm putting in a pair of skunk2 tuner series stage 3 cams in my gsr head(with a b20 block).should i upgrade my pistons????let me know thanxxx

 

No.

You're welcome

 

skunk 2 stage 3? i say and excuse my french heck yea. those cams are way to big to run stock pistons with. i have tuner stage 1 and still got srp pistons because i was affraid to run stock pistons. anything over gsr cams although some will say you can go up to ctr, i would upgrade pistons

 

Lol, this is wrong, unless the pistons have valve reliefs big enough for vtec valves.

 

a buddy of mine put a set of ctr pistions in his with the a b16 head and they cleared but with a gsr head im not sure they will clear the stock pistons because the gsr head has a smaller combustion camber- i would check clearances first and then decide - heres the link on how to check piston to valve clearance- it a pain but its worth the trouble. http://www.c-speedracing.com/howto/claymotor/clay.php

 

FAIL, completely.

There are not proper valve reliefs on b20 pistons to run big cams w/ vtec. Also unless you have compression to go w/ big cams your just wasting money and power potential. what do you think an ITR w/ stage 3 cams would make more power then a b16? compression compression compression. Cams that big i recommend looking for 11.5:1 CR at least to get full use out of them.

 

all good answers..

 

What!!!!!!!!!!!

 

ok ok almost all good answers ....except for that one....