[SR] Boosting until redline - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

reccakun08 · 07-19-2008, 04:13 AM

Asking everyone with a sr20det with stock t25 turbo boosting over stock how much boost can it hold to until redline?

Currently i am boostin about 12psi on a mbc. It will not hold the 12psi all the way to redline it will drop all the way down to 7psi i think after 5,500rpm. I tried cranking boost to 14psi and it is still dropping. I know the stock t25 does start losing boost to redline but how much?

My friends car holds 12psi all the way to redline.

Boost leak? exhaust leak?
Car drives fine and idles fine. Just doesnt pull hard up top from the decreasing boost. Full exhaust and fmic.

Thanks.

07-19-2008, 04:13 AM	#1
reccakun08 Zilvia FREAK! Join Date: Jun 2003 Location: Rockville, Maryland Age: 40 Posts: 1,090 Trader Rating: (5) Feedback Score: 5 reviews	[SR] Boosting until redline Asking everyone with a sr20det with stock t25 turbo boosting over stock how much boost can it hold to until redline? Currently i am boostin about 12psi on a mbc. It will not hold the 12psi all the way to redline it will drop all the way down to 7psi i think after 5,500rpm. I tried cranking boost to 14psi and it is still dropping. I know the stock t25 does start losing boost to redline but how much? My friends car holds 12psi all the way to redline. Boost leak? exhaust leak? Car drives fine and idles fine. Just doesnt pull hard up top from the decreasing boost. Full exhaust and fmic. Thanks.