Is there a problem running this with stock compression on a b18c1 gsr? Is there a way to boost compreesion with these cams without having work done to the block? Thanks in advance

 

Flat faced valves will help by about 0.2 compression. 2 layer headgasket. Carbon buildup on pistons lol.

You are not going to get a significant bump in compression without different pistons.

 

Skunk Stage 2's are fine with stock GSR compression.

 

You can also mill the head to raise compression. I had my head milled .030 which brings compression up about .5. So if you mill the head, get flat faced valves, and a thin head gasket like from Spoon, you will get a nice bump to about 11.0. But like b19coupe said, stock compression is fine with these cams.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by b19coupe &raquo;</TD></TR><TR><TD CLASS="quote">Skunk Stage 2's are fine with stock GSR compression.</TD></TR></TABLE>

i thought skunk stg 2's like about 11.3+ compression though people also put them in ITR's with 11.1 and make power

 

p30 pistons are bigger then usdm/jdm itr pistons

erm how are these cams in a poor mans type r with CTR pistons?

for all that dont know

gsr block with ctr pistons 2 layer spoon gasket and b16 head

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by b19coupe &raquo;</TD></TR><TR><TD CLASS="quote">Skunk Stage 2's are fine with stock GSR compression.</TD></TR></TABLE>

Listen to B19, forget trying to increase compression.

 

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by preludedriva &raquo;</TD></TR><TR><TD CLASS="quote">p30 pistons are bigger then usdm/jdm itr pistons

erm how are these cams in a poor mans type r with CTR pistons?

for all that dont know

gsr block with ctr pistons 2 layer spoon gasket and b16 head</TD></TR></TABLE>i'm still tring to figure out what the hell your talking about?

 

think he meant compression ratio wise.

 

sorry i was stating that p30 pistons were bigger then ITRs

and i was asking if theres a clearance issue if i had the stage 2s in my setup

 

stage 2's should be fine with gsr CR, but if you want to go all out some flat faced valves, 2 layer head gasket and milling the head a bit will bump your CR without spending money on forged pistons

 

p30 pistons or ctr's? I dont want to go forged pistons but i want my compression to be around 12.0... what you guys suggest?

 

Why do you want your compression to be 12:1?

 

I want to get the max performance out of the stage 2s. Is that too much compression for them?

 

It's not that it's to much, but it's not required as stated by so many other experienced people in this thread. Increasing compression like that without need will only make it harder to tune. Skunk says 11:1 is ideal for those cams, many people run less and make good power, running more compression isn't going to make that much difference.

 

well the only thing is that my rings are bad and im burning oil so I was gonna rebuild the bottem end. I wanted to do it once and right so I figured the high compression wouild aide me donw the line if I ever wanted to upgrade the cams

 

For sure, just don't need to go overboard. Anything from 10.5-11.5 is great for street daily driven cars. Forget the CTR pistons, just go with the PR3 or P30 pistons, you'll be happy with them. You'll have enough compression to run most of the common good power cams out there.

 

thanks alot man

 

cams will only change your dynamic compression ration! are your cams pro series?

 

No they are not pro series. Cams affect dynamic compression but that's not what's being discussed here. You typically match your static comp ratio to your cams requirements for that reason.