Quote:
Originally Posted by Dougal
I run a Garrett T25 on my 3.9L Isuzu, but it is governed to 3600rpm and rarely ever sees 3000.
I'm running 20psi boost which is outside what the turbo makers ever intended.
One of these will work for a 2H, but I'd be inclined to go a little larger. A T25 with 0.64 A/R exhaust would work if you're looking for used turbos.
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Dougal your Isuzu 3.9L sounds very similar to the 2H. It turns slow and has a similar displacement. Hey, I have an idea and request: Do you have enough info on the 2H to map the T25 .49 A/R and T25 .64 A/R for us?? If you don't, maybe you could map them using your motor.
It would be interesting to see exactly what the margin of saftey is you are refering to.... in a graphical format!