Quote:
Originally Posted by Dougal
I'm using a smaller turbo than stock, mine is a wastegated T25 with a 0.49 A/R exhaust housing. The stock turbo is a TB25 which has exactly the same compressor but a bigger exhaust housing and no wastegate.
I have been running those temps for the last 8000km and see no damage. I've had the occasional excursion past too. Most people put excessive safety factors on their EGT levels.
Hey that's new, I have never seen that turbo before. The 4BD2's I've seen had no wastegate. Yes it's the same flange and core.
You'll be able to push close to 20psi with the stock turbo, but only at higher rpm. Probably suffering smoke and high EGT's below that or poor response if you have the boost compensator set to deal with the smoke and EGT's. This is why I went smaller, I have 20psi boost from ludicrously low revs.
Yes an intercooler is a good idea, I haven't yet fitted one. Partly due to space, mostly due to sloth.
|
curious what this 4bd2t turbo core is and how it compares to the t25? sounds like dougal you have a t25 but with a smaller hot side housing?
i am interested in more turbo boost, and the garretts would be much easier to configure into the current engine setup.