Quote:
Originally posted by James
Please only someone with an RB25 reply, don't speculate.
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yeah, and there are SO many people here with RB25s...let alone ones with TONS of boost.
The SR stock head gasket is good for a lot of boost. It's a metal gasket. I'm sure the RB is the same. Avoiding detonation, I'm sure the RB would be good for 30-40 psi without popping. But you'll probably lift head bolts and hole pistons way before that.
Eric