S13 with SR20DET big problems please help - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

gabby_wap · 09-27-2013, 01:17 AM

Hello guys.
I encountered a problem with my sr.
I have a S13 with SR20DET under the hood.
Stock turbo.
3" exhaust.
Big intercooler.
Walbro fuel pump.
Stock engine with HDEV stage 1 ecu upgrade.
The car used to run very good at 14psi boost.
Now the problem is that it stopped pulling due to fact that the boost is still 14psi. .
And it detonates at high rev's.
I tried with other coils and it's the same.
And is going a bit rough when I pass 5 psi.
Anyone can help pls.
Thanks guys.

09-27-2013, 01:17 AM	#1
gabby_wap Join Date: Sep 2013 Location: Romania Posts: 15 Trader Rating: (0) Feedback Score: 0 reviews	S13 with SR20DET big problems please help Hello guys. I encountered a problem with my sr. I have a S13 with SR20DET under the hood. Stock turbo. 3" exhaust. Big intercooler. Walbro fuel pump. Stock engine with HDEV stage 1 ecu upgrade. The car used to run very good at 14psi boost. Now the problem is that it stopped pulling due to fact that the boost is still 14psi. . And it detonates at high rev's. I tried with other coils and it's the same. And is going a bit rough when I pass 5 psi. Anyone can help pls. Thanks guys.