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View Full Version : Stock sr20det Headgasket - how much boost?


Pudula
07-27-2004, 12:41 PM
I just "blew" my greddy metal head gasket yesterday. I wasnt under the impression you can blow those easily, so im guessing it wasnt enough to just torque it down to stock specs. I wanto replace it iwth an OEM gasket. What kind of boost can I run with this OEM gasket?

Thanks,
Ryan

xVaporx
07-27-2004, 03:13 PM
your question is far too vague. The head gasket does not see manifold pressure, your intake manifold does. What your head gasket sees is combustion pressure, which is more commonly measured as engine output (power, torque). And for us to know that, we'd have to know what turbo you are running, and most importantly, how well it's tuned.

Pudula
07-27-2004, 03:17 PM
Okay so how much power can it handle?

old_s13
07-27-2004, 03:23 PM
1 million hp or 12000 psi.

good luck
mike

xVaporx
07-27-2004, 03:27 PM
I'd say a safe level for a daily driven car would be 320-340hp.

Pudula
07-27-2004, 04:01 PM
Okay, good...I run about 14 psi daily driven, which on my setup should be just around 300 rwhp.

Thanks.

HaLo
07-27-2004, 04:04 PM
my car is 10-15 psi daily driven on the stock HG... no problems here..

Also do occasionnal 19 psi boost: no problems either... ;)