Bersaglieri
Ron Swanson's Brother
I just re-read your whole thread, and I think it's your timing that's causing the EGT issue. Another member just had the same thing on here. On my 89, we found out it was accidentally retarded a tooth on the gear when I got it (9 deg on a light) which is probably why I could bury the pyro at 1600 in second gear. We skipped it two teeth ahead, plus part way to the head (27 deg on a light) and I didn't see anything above 1400 until OD and 100+mph. Also, lots of power, spooling was terrible, and my old battery wouldn't even start it. So, there's a happy point, but I run 22 deg on my 95 with the 57/71mm twins, and I love how it works.
As far as whether or not to upgrade, I don't think you'd see much of a difference unless you did something crazy, like twin Garrett GTX ball bearing chargers. I'm looking at switching the 71mm k31 on mine to an 80mm S400, the 71mm actually starts to spool too fast, and slows the 57 down when it is trying to light.
Thanks for that info, I've brought up the light vs plunger thing but it seems people either do one or the other. I agree, being retarded a tooth or something is probably why I've seen as much as 80psi without head gasket issues on factory bolts. It's also why I can bury my pyro with ease even with the intercooler upgrade and twins. Perhaps I should look into studs before I add timing.
Are you running 22 on the light or plunger? I can't remember what I wrote but I think mine is 17.5 plunger and 9-11 on the light. My diesel buddy and I talked about the difference, but never ended up doing much about it.
Good info on the chargers, one of these days [when I get 4th gear and timing right] I'm gonna throw some gauges on the ports I have between stages and stuff and see what it's doing.
Again, thanks for the insight.
Last edited: