Ok. I finally installed my Vortec SFMU, I then adjusted the idle fuel pressure to 35psi. I decided to give it a run to view the results... Immediately, I've noticed the fuel pressure climbing to 80psi, at only 4psi of boost. The egts were low, at about 1250F.

I then decided to put a 1/4 inch T in between the turbo and wast-gate. The boost pressure increased to 10psi and the fuel pressure shot up to 90psi. The EGT's were at 1350F.

My question is where to determin if I'm running to rich?? Is 80-90psi of fuel pressure to much?? I know if to much fuel is used, you may experience boggyness.

The SFMU has a bleed screw, which fine tune's the pressure vs. boost curve. And it can affect the transition of this curve. Not sure on how to play with this... Need more time on troubleshooting..


If any of you guys are using the Vortec SFMU, share some advice... Hopefully I can stay on track.. Thanks.