I'm making around 700 whp (29 psi boost on the 6262) with e85 and the IP 3mm HG with no problems. I do all the work on my car though and so the HG was installed with great care and properly.

 

Has anyone ever thought about buying 3 OEM HG's ($180) and splitting all 3 and taking the center spacers from 2 of the HG's and adding it to the 3rd HG to slightly raise the deck maybe just another .080" or something? This would probably put the CR right around 10.25:1 or near that. I was thinking of trying this if my IP 3mm HG spacer starts causing me problems, but I'm not too sure if stacking 3 of those center spacers together will seal properly.

Do you know the answer to this Fernando?

 

There are other options availible check out Cosworth's gaskets you can get them in 0.38 mm, 0.80mm and 1.1mm. They would not be a bad choice for those who have milled the block and the head and are worried about clearance.

 

^^Very interesting. Have these been tested under extreme presssures with very high HP with boost?

 

They are pretty new to the S and I don't know of anyone that has tried one. Cosworth has been a big name in performance for a VERY long time so I would trust them over most other companies.

 

I've been running the stock (Golden Eagle) one ever since we put the car together & we haven't had any problems.

Even the Red Star Motoring 7 second S2King S2000 runs a Cometic $100 head gasket.

If you are blowing up head gaskets is because 4 things:

1: Over heating or cooling issues
2: Problem on the fuel system (Bad injectors, bad fuel pump, dirty filter, etc..)
3: Bad gas/fuel
4: Tuning problem (Too much timing, too lean for the gas you are running, etc...)

Don't blame the head gasket. I'm not going to say that some head gaskets had manufactored diffects, but we have been in business 8 years and we haven't had a bad head gasket yet.

Those are my 2 cents

Fernando @ Kings Performance

 

Thanks Fernando.

BTW, we got your old kit back on Cody's car and I put his haed on for him (this is Chadd BTW) and no problems out of the stock HG yet, but we are using a pretty good local tuner too.

 

wow 700whp without pistons or rods? just IP 3mm HG? thats amazing!! do you at least installed a block guard? the 3mm HG actually brings down the CR to 8.8:1 ?

 

thanks for your advise. think im going to stick with the stock HG for now. but you think i should use 2mm HG if i up the boost 3-5PSI more?

 

Yes, with ARP headstuds and no block guard is needed with the f20c and f22c. The cylinder walls are very thick on these engines from Honda.

The 3mm HG brings the CR down to about 8.89:1 to be exact.