I just bought a 94, and I ws wondering how uch boost I can run on a stock motor after I get rid of the fuel cut safety feature.

 

10 psi

 

If everything is stock, fuel system included, i wouldn't go past 10, maybe 11 if it spikes for a second. But if you upgrade the fuel system, the stock engine and turbos can handle 14 psi or so safely. Just need an ecu to keep everything in check

 

I have a completely stock fuel system and computer, and I have already hit th fuel cut off, about 12-13 psi, and to that point it seemed to have no problems providing enough fuel.

 

I wouldn't suggest that you keep pushing your FD that way unless you are in the mood to rebuild your engine early on. It's not a certainty, but it's highly likely that you'll detonate if you keep doing that. Just my .02

 

How do you know if it wasn't having a porblem with out a fuel/air ratio meter hooked up. Don't turn up the boost or start modding until you put in a remapped ECU to play it safe!

 

As the others said, you need to restrict your boost. There's a fuel-cut for a reason -- the stock ecu does not have fuel maps for over 10 psi. Get a boost controller (home depot or electronic) and reduce your boost to 10 psi. Either that or get an aftermarket ecu.