I wanted to see what the opinion on a 2mm (0.074") Cometic stainless steel headgasket is for lowering compression on a turbo car. It should lower compression about a point (to roughly 10:1) and cost $126. Best guess is that safe boost with one of these would be in the 12-15 pound range based on what Inline Pro is running with a 3mm gasket and what the average turbo/sc guys run on a stock motor. Any comments or experience with this?

Tim

 

I would like to ask in addition to timg question. What makes a thicker gasket less durable.
I know they lower compression but what does it affect in the combustion chamber?
Squish or something like that is affected. Is a thicker gasket acceptable for tracking the car.
Good topic timg

Chris

 

I have been speaking to a guy called John @ Darton for a while on their MID kit for the F20C to see when it would be ready, when discussing that I asked about the Cometic gaskets as they are a distributor and was told they only offer the S2000 gasket in a stock thickness!!!
I would be interested in one of these @ $126, where can i buy it from?

I also spoke to inline pro who said the 3mm gasket was in the region of $260 has anyone else got one of these yet?

Andy

 

Cometic can custom make a gasket. All you got to do is tell them how thick you want it. I think fperra has/had this gasket.

For Cometic's website click Here

It's a good topic and I'm looking forward to the responses.

 

Thanks fever I'll speak to fperra unless he chimes in here!

Andy

 

please post back here if you get any info.

 

Damn, Inline Pro quoted me $399 for their 3mm gasket. I called Cometic directly and asked for a 3 mm gasket. They told me that didn't have one that big for a S2000, but they did have a 2mm (0.074") that would lower compression about a point. I ordered directly from them. Final shipped charge was about $135.

Tim

 

cometic makes good gaskets. $135 shipped is a damn good price compared to the 3mm gasket by inline pro.

 

Just got an e-mail back from Cometic and this is how it read:
[QUOTE]Andrew,
In order to get your compression down that much you would need a
head gasket that is approximately .160" thick.

 

btw: how much boost are you guys planning to run with these head gasket? Does connetic recommend any boost limit?