HomemadeTurbo - DIY Turbo Forum - good turbo for 6-8 psi on stock internal JDM H22A?!? Help Meee

Quote:

Originally Posted by prelude_stealth

just to be clear, I only want to run relatively low boost pressure (8psi MAX) because I have no plans on building the engine internally just yet (have heard 6-8psi is the safe boost level a stock H22a can take), I will have a spare engine for that later on.

That's a pretty generalized statement, and I absolutely hate it when people throw psi numbers around like they know something about it. 6-8psi out of what turbo is what the answer should be more or less. A turbo that flows 350cfm at 12psi isn't going to be nearly as rough on a motor as a turbo that flows 650cfm at 6psi. See where I'm going with this? People used to tell me I could only run a max of 8 psi safely on my d16z6...I ran 14 and it survived for over a year until I swapped to a b-series. I've run LS's at 16-18psi, b16a's at 16psi, all of which I was told never to run that high of a psi on. Granted, higher psi's do increase cylinder pressure, and in that case a good solid tune is on order, because even a higher psi number than what people tell you is "safe" is still nothing compared to the cylinder pressure produced from detonation.

Cliff Notes:
People are full of ----, don't listen to all of them.
People who blew their motor's going over 6-8 psi probably did so because of shitty tuning and detonation.