I think its somewhat assumed that you can't run 50psi safely....

 

That's exactly my point. There is such a thing as too much boost. And the question "how much boost can I run" is a good question. Unfortunately it can't be answered with certainty on an internet forum because there are too many variables. It should be answered by a qualified tuner with the car strapped on a dyno so everything can be monitored.

 

This topic has been beaten to death, actually. A search does provide a fair bit of information as well.

Read THIS to check how engine power and boost are related.

Two main factors will lead to an engine failure, excessive engine stress (torque) and predetonation. Too much torque will lead to excessive engine stress. Pistons, rods, and other highly stressed internal bits will be the first to go. Predetonation does not necessarily cause excessive stress, but it does induce transient, oscillating forces that can very quickly lead to component failure.

That being said, the safe boost limit with the IP 3mm gasket is at least 19-20 psi. Whether or not that particular level of manifold pressure leads to engine destroying torque is another thing.

 

^^^Thanks Reagent keep your smart ass comments to yourself.

 

There isn't even a way to answer this question, its not just about boost pressure, the volume of air is really what you have to be worried about... for example a gt3076 at 15psi will not produce the same horsepower as a gt35r at 15psi because even at the same boost pressure the 35r is flowing more air...

 

Sometimes I just have to throw the flag.

 

^ Ok then what is BS??

 

thats what i was saying. its mostly the hp/tq that kills the engine

 

You can run 20-30 psi on c16 gas and with a 3mm HG. What do you think would be the first thing to go with stock internals. Detonation would not be the issue here, if you have even a decent tuner.

 

Ok guys, let's not make this personal. It's a difference of perspective.

Personally I'm with Reagent. There is certainly a limit to the boost you can use safely with a 3mm HG. Assuming you are running pump fuel, an efficient turbo and a good tune I would say this in the region of 20+ psi. And I think that the power and torque produced within this limit is reasonably safe for a good F20C. Your clutch and diff is another story.

Of course if you're using something other than pump fuel, an inefficient turbo and a bad tune all bets are off.