Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum - View Single Post - Gt2871r-15 .64 boost creep

GUNDIE · 03-18-2021, 08:39 PM

Need some help here it doesnt make sense to me.
But I went in for a tune today on the new setup and its hitting 18psi by 5500 rpm and creeping up from there.

The turbo is brand new with a 12-14psi internal wastegate, shouldnt the wastegate be opening within that range and keeping the boost Down? Currently bypassing the boost solenoid so theres no interference between boost and wastegate.

Shop is suggesting I need an 8-10 psi wastegate but I cant understand why that would matter, feel like if this was a common problem with this turbo there would be more posted on it but I cant find it or Im looking in the wrong place

Setup below
Kouki s14 SR
Tomei manifold
Gt2871r-15 .64
Link ecu
Haltech solenoid
550cc injectors

03-18-2021, 08:39 PM	#1
GUNDIE Join Date: Feb 2010 Location: WA Age: 32 Posts: 6 Trader Rating: (0)	Gt2871r-15 .64 boost creep Need some help here it doesnt make sense to me. But I went in for a tune today on the new setup and its hitting 18psi by 5500 rpm and creeping up from there. The turbo is brand new with a 12-14psi internal wastegate, shouldnt the wastegate be opening within that range and keeping the boost Down? Currently bypassing the boost solenoid so theres no interference between boost and wastegate. Shop is suggesting I need an 8-10 psi wastegate but I cant understand why that would matter, feel like if this was a common problem with this turbo there would be more posted on it but I cant find it or Im looking in the wrong place Setup below Kouki s14 SR Tomei manifold Gt2871r-15 .64 Link ecu Haltech solenoid 550cc injectors Last edited by GUNDIE; 03-18-2021 at 10:19 PM..