| Would like to know anyone's spoolup times e.g 12 psi @ 4k w/ sport 500s and 3" downpipes. Specifically looking for stock/sport 500 spoolup times but any turbo would be nice as it'll help me decide my next turbo upgrade. I have sport 500s with 3" SZ downpipes bolted to stock exhaust until I can get my hands on the SZ 3" exhaust and I'm not hitting 12 PSI until around 4.5-5K. I didn't perform a boost leak test but everything on the motor is new and I tightened everything down pretty well. I've never driven w/ stock turbos so I'm not sure if this is normal or not. If not, I suspect maybe the 3" downpipes to stock exhaust is causing turbulence or something?
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