basically i've done some tests on my s14a and found the head gasket has gone, now obviously I'm gonna replace it but i didn't know what to use. ive got to change it any way so im thinkin of fitting a steel one just to save the hastle of changing it again in the near future HKS are sellin just the head gasket for £194.00 but thats just the gasket does any one know of a good place to get a decent steel head gasket kit from rather than just the gasket. i know its not cheap to buy steel gaskets but any ideas?? cheers
a friend of mine made some tests, and the results are ... dont buy cometic ones (pressure is not regular across the gasket). Also, metal HG needs a very clean and flat surface, much "flatter" than paper ones. Cometic ones are the most demanding on "flatness", this is due to their cheapness. My friend is currently running a greddy one. Cheaper than the HKS and it is holding a CA with 2bar (30psi) boost for quite some time now.
I would also recommend Cosworth. I have been saying this a lot recently, but it's really important to make sure you stick to a standard head gasket thickness. Don't put in anything bigger than a 1.2 if you can help it. (If your having your head skimmed a 1.4mm will be fine)
I will be doing a friends SR20 gasket soon and I will be strongly recommending Cosworth. Actually does anyone know the best place to get a Cosworth SR20 gasket?
I have a cometic one which is performing very well. A lot of high-spec engines at SXOC also run (or have ran) Cometics without a problem, good value for money.
see ive found one from HKS for £197 but thats just the gasket its self, also what thinckness would i need? what are you using, do you buy yours as a head gasket kit or just the gasket?
Power enterprises is my favourite, boasting 14,000psi cylinder pressure rating !! Cometics gaskets are shit, people that don't know any better are going to rate them, they are ok for a road spec car but anything actually worth talking about they arnt. Clarkey
Running cometic in my RB30 and the previous RB28 No problems at all ? Seriously overheated the RB30 a couple of times and the Cometic is still holding strong. Mabey just the SR engines dont like Cometic ?
my mate runs cometic on his hight compresson wrc escort cossie with no props at all (thats 11- 1 static with 2bar boost on top of that = over 600 Torques at only 300bhp )