Can anybody Identify the manufacturer of this Turbo??

[BetMinesFaster]

Hey guys, looking to but this turbo, Just wondering if its a precision or not? Compressor dont look familliar to me, Anybody reconize this!!!

 

[notacarlo]

Borg? Need to see turbine.

 

[BetMinesFaster]

Its got a precision exhaust housing, heres another picture, Seller says its all precision but the compressor does not look familliar!!! Price is right, I still plan on doing the purchase, Just want to make sure I know what im buying!!

 

[RUQWKNF]

My guess is that, that is an older H cover 71 GTQ. If that compressor wheel is CNC billet aluminum, then it's a 71mm. Not typically well suited for the Buick application due to it being a high efficiency compressor wheel. Meaning it likes to run boost levels of 32-45psi, aka the "Sweet spot". And not many Buicks can push 40psi and live, not too mention 32psi. If it's not billet cnc aluminum, but cast aluminum, then it's probably a 70mm wheel worth 825-830 fwhp maxed out. The only real way to tell is by looking for the engraved numbers on the compressor cover discharge, typically covered by the silicone IC hose. Get the numbers and I can tell you all about it. PTE used to use the Holeset style compressor covers on 70 series turbos for a long time. They changed the compressor cover over to a new style in late 2005 early 2006 on the 70 series. The new style has the Precision logo casted into the compressor cover discharge. You can tell it's a GT-Q turbine wheel by the way the turbine wheel nut protrudes past the flat surface of the turbine housings' discharge face. Also, that wg hole has been serious hogged out for use with an external wastegate only. Not for use on an internal wastegate downpipe such as a Terry Houston style downpipe.
If that is indeed a PT71 GT-Q, it's good for around 850 flywheel hp when pushed. If you are planning on installing this turbo on an internally wastegated downpipe, keep in mind that you will need a replacement turbine housing which will run you $255.00+ and don't forget shipping on top of that. And the last thing to remember is, was this turbo recently freshened, any run time after the freshening job? Or has it been raced hard and put up hot? If it's been beat to death or if any engine parts failures have happened, I would pass. Especially if the motor it was on had recently blown a head gasket.
HTH

Patrick

 

[BetMinesFaster]

Its a 70GTQ, It was raced yes, No engine failures however, I do run a large external gate and this turbo will be going on my new stroker engine, Like I said the price is right, Even If it needed a rebuild its still 250.00 cheaper than my dealer cost with precision for a new 70GTQ including the rebiuld cost...!?!? Thanks for the info

 

[BetMinesFaster]

Either way it should be a healthy step up from the T64E I was running??