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Guest <NIS_02>

Jet33

The turbo is a Garrett T28, It has a ceramic wheel, non ball bearing, I wouldnt push boost past 12psi on everyday driving, but it can handle 15psi with cold air temps outside, but only every so often, not advisable to run 15psi hard consistently

Hope I helped u out mate

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Originally posted by

as u can see I got 225HP @ 14 psi of boost, that about 40HP increase over standard, which runs around 10psi at 5000rpm, with a more free flowing exhaust expect another 20HP easily at the treads :P

Are you sure those figures are right. My r33 got 232 rwhp @ 6500 with just a cat back, pod and remapped ecu & 10psi.

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I think the R33 turbo's are T3 flange with T28 internals or something wierd like that.

Yepp, a T3/T4 will bolt onto the factory T3 flange inlet manifold, but I think you need to make up a new dump pipe.

And as stated before, boosting above 12-14psi may have you looking in your cat converter for part of your turbo !!

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my gtst had a ihi turbo, ceramic with steel bearings, couldnt run much boost withit it, about 9psi. t28

took it of and took it 2 garret and they turned it into a t3/t4, now i run about 10/11psi and the car screams, i need to put a cooler on if i want 2 run more boost,

also it feels like the car doesnt strain as much as it did b4

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