Turbo sizes between APS and GTM?
 

New here and after much debate I have been trying to research the different size turbo's between the aps tt kit and gtm's tt stage II kit. Does anyone know if which of the turbo's are bigger?
Thanks a bunch,
cosmogirl

I don't think APS makes kits for the 370z.

Well I was referring to the aps tt kit for the 350z compared to the gtm tt kit for the 370z. Basically a comparo between the gt28rs .86ar (gtm) and the gt2535r?

The gt2535 appears to be notably larger in capacity. It is capable as a single of 400hp.

Too big for most street needs. Depends what you're looking for, or prepared to build for.

Coop

GT28RS is a 42mm size turbo.
Couldn't find the other one.

I'm confused as to how there's all this incorrect information in here when a visit to Garrett's website would give you more correct information than you can shake a stick at.

Garret has a way of numbering their turbo part numbers in such a way as to let you know what the exducer size of the compressor is. So, in GT2554R, the 54 refers to the exducer size of the compressor wheel. Naturally, GT2860RS means that it has a 60mm exducer which is bigger than a 54mm exducer.

The first pair of numbers in their numbering system refers to the frame size of the turbo. The bigger the number, the bigger the turbo is. As such, a GT25 is smaller than a GT28.

In short, our Stage 2 turbos are bigger than the old, discontinued, no longer available APS kit for the 350Z.

^^^ I'll have another slice of that crow pie, Mike! LOL.

Coop

Didnt mean to upset anyone here but thanks for the final word... Not to beat a dead horse but after researching it seeems the aps kit came with gt2871r turbo's rated a 40lbs per min and 400 hp a piece. It seems aps was trying to keep it a secret what the actual size turbo's were used for some odd reason...

APS uses "GT25R" frame compressor housing on their GT2871R because it's the biggest one that can fit in there. The GT25R housing is remachined to take the GT2871R wheel.

Uhhhh ok...