[SVO86]

i have an 86 SVO turbo mustang with sporting mods such as MSD 6al box with 6000 chip, MSD wires and MSD coil, aeromotive fuel pressure regulartor, front mount intercooler, forged internals, 0.544lift cam.


now that you know wat i have heres my problem: the car is hesitant with power, it is running lean on my air/fuel ratio gauge, and it keeps stalling on me at idle. DOES ANYONE KNOW WAT TO DO?????

[beetlejuice]

I assume the fuel pressure regulator is adjustable-I'd check that first to see that you have it adjusted correctly. Your cam sounds like it is VERY big. That could be causing mixture issues on many levels. Hopefully, someone with a better understanding of highly modified 4 cyl. turbos can help you more.

[NavySVO]

OK, let's see if we can sort some things out......

1. what type of cam do you have, and do you have ALL the specs on it? (valve overlap, etc)
2. when you say hesitant on power, please describe in detail what you mean. Off the line, at a certain RPM band, etc.
3. Have you set the TPS and base idle? What RPM does it TRY and run at?
4. Is your AF gage a wibeband? If not, chuck it and get one. A narrowband is useless.
5. What does your AF ratio read out at? What RPM do you check it at? You should probably dyno it to get a bigger picture.
6. Does Fuel pressure rise 1 psi per every psi of boost?
7. What is base FP with and with out vacuum hose hooked up?
8. What turbo A/R are you running?
9. Check for vacuum leaks with the propane test
10. What is your timing set at with SPOUT out?
11. Have you checked cam timing?