High fuel pressure problem, Need help!

[MiztahFooLish]

What's up guys? I just finished installing my custom stage 2 turbo on my 95 RS but had a couple of issues:

Fuel setup is 255lph fuel pump and 12:1 FMU with electrical fuel pressure gauge to monitor.

-Electronic fuel pressure gauge is reading 70 psi @ idle which is pretty high. What do I need to do to fix this and lower the fuel pressure? I already replaced all the vacuum lines with silicone hoses.

-Boost Gauge is showing about -20 vacuum @ idle.

-I did the wastegate spring mod and I get max 5.5 psi boost @ 4k rpm which was my plan until I get a rebuilt engine.

-I hear flutter when I let off gas or shift on my TurboXS RFL bov. How do I adjust the screw so I get a solid release sound instead of the flutter?

-I also noticed that it takes a few more seconds to get the car started since it was boosted.

Any tips and advice would be so appreciated. Thanks.

 

[BigRand]

I'm asssuming your running stock injectors. And if that is so, then chances are you have two problems.

1. Your electronic gauge is messed up, you can counter check that gauge w/ a manual fuel pressure tester and plug it in on the fuel rail (opposite side of the feed line)

2. Some where one of your fuel lines is kinked, or smaller than it should be causing the pressure to rise, or you hooked up the FMU and fuel lines incorrectly.

Search for a diagram on how to install one, Paul has posted a few of them so it shouldnt' be too hard to find.