Originally Posted by TwinTurbo392
I am also kind of leaning towards 61mm or 64mm Turbos... I might go 64mm just incase if i get bored with it I can turn up the boost a little... I think 57mm or even 61mm turbos might run out of umph up top... what yall think?
If I go 64mm What Exhaust A/R do you think would be best... .50 A/R or .68 A/R? (I can get those same A/Rs in the 61mm too)
Twins are not needed on these trucks. There is plenty of space (unlike a car) and we don't need high boost like a small engine to make big power. A single large T4 housing will make more than what the drivetrain can handle. I've seen a few twin setups using T60-1 units on older vehicles.