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OFFdutyHERO · 03-15-2006, 08:56 PM

I'm trying to find out how much boost I could throw at a NPI 4.6 and not worry about it goin boom. Most of the kits you see are something in between 6-8 psi, but could I safely run 10psi on the stock internals?

03-15-2006, 08:56 PM	#1 (permalink)
OFFdutyHERO what?? Join Date: Aug 2005 Location: Michigan Posts: 305	How much?? I'm trying to find out how much boost I could throw at a NPI 4.6 and not worry about it goin boom. Most of the kits you see are something in between 6-8 psi, but could I safely run 10psi on the stock internals? __________________