I can't believe you have been silly enough to boost the thing without even putting it on a dyno and checking the AF. You say it hasn't detonated?? How the hell did you blow the heag gasket man?? Ummmm, yeah, detonation. The factory computer DOES in fact read boost pressure, it reads up to 11psi, which is where fuel cut is, and all TIAL 44mm gates in australia that I know of have a 1 bar spring, go and look at the side of your box, bet the spring rating says 1 bar.

Even on 6psi with no reg or fuel pump, your AF ratio would be over 14/1. WHen you are hitting fuel cut at 11psi, your probably more like higher than 14.5/1. Regardless of if you put fuel pump and reg on it, it will still boost to 14psi and hit fuel cut. Without going off about it, I'll say nicely that your quite silly if you continue to keep driving it with no ecu or fuel mods.

I'm aware your dad has built many many tough cars, and you've probably learned a lot from him, but this isn't some carby V8 big block. You can't just bang the turbo on it and hope for the best. I will also say that if you go and put a better head gasket in it, it then won't be the weak link, the next time it runs lean will probably melt a hole clean through all 6 pistons.

After you've done about 3 more head gaskets and 1 or 2 bottom ends, take the time to put a computer, injectors and fuel pump in teh thing, tune it, and enjoy 500hp reliably, rather than being silly with the thing.

6BOOST

next

ha true didnt see you. no draging yet, im jst keeping it of boost for now. should of come had a chat

yeh i com down there every friday for tafe, but last friday was my last day for the year. i sould be able to get a few down there for a crusie. there is a heap of ppl with hot e series cars in waroona. one of my mates car looks exactly the same as your your but white he also has tafe on fri. might be able to get a nother phyco turbo falcon down there as well