$45 for the honda part, $65 for cometic .030"

this is for a 9psi h22a w/built bottom end. i wasn't planning on lowering compression, but the pistons i wanted are 9.0-9.5, which is a reasonable drop from stock. the .030 would give me a smidgen of that back, right? i don't want to go all out, just get a bit closer to the stock CR.

tia.

 

ttt once!

 

i'm using cometic...this was off of http://www.nipponpower.com website

"Cometic HP Style head gasket has an extra shim around the combustion area to help seal better for cars with turbo, nitrous or supercharger. Cometic's MLS (Multi-Layer Steel) Gaskets are constructed of two nitrile coated outer embossed spring steel layers with a steel inner layer that provides support to the gasket allowing multiple thickness. Cometic gaskets withstands the shearing forces created by aluminum heads on cast iron blocks. Once the gasket takes a torque set, there is no re-torquing required. Less clamping force is required allowing for reduced bore distortion."

 

i generally trust OEM parts more, but since i want the slightly thinnner gasket... do you think the .002" difference will give a small increase in CR, or is that not noticeable? .025 too thin?

 

cometic...they are even reuseable

 

cometic customer service they answered all my questions when i called them, call them and see if they can tell you what you best options are.

 

call them and ask for richard.

 

any body know cosmetic's contact info? or should i call nippon?

 

Richard and Robert are both in my book!

 

talked to cometic. i think i'm gonna go .025" to get a smidgie of the compression back. if i was running a turbo, i'd probably opt for lower compression and more boost, but i don't think that holds as much water with the blower.

anyone disagree? the .007" from stock is worth what, about half a point?

 

not even a half...i'm using a 0.057" and it lowers my compression to ~9.4:1...also, why are u going to use the regular cometic gasket unstead of the turbo/nitrous one?....according to nippon site, the smallest size for turbo/nos gasket is 0.036"


[Modified by Quaalude, 3:46 PM 4/26/2002]

 

hmm! so if your .057 vs .032 resulted in .4 compression, give or take, that means the diff between .032 and .025 is .1x, or basically nothing.

good point about the turbo/nos gasket, but i did talk to cometic, they felt the .025 was appropriate for a boosted application. it's still a multi-layer metal gasket. less than that they said


[Modified by schwett, 12:51 PM 4/26/2002]

 

0.057" results in 0.6 compression, give or take, and 0.025 would raise compression about 0.168