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Different Highflow Characteristics

poeticjustice88
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poeticjustice88 Enthusiast

poeticjustice88

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Hey all,

I am looking at buying a turbo off of a forum member, I will keep the identity between him and I as I believe that is the proper thing to do.

I have put a deposit down on it but I am curious.

The owner states it is an R33 turbo which has been high flowed but the rear wheel has not been changed to a steel one. So I am curious as to whether there are different "stages" of high flowing for lack of a better word.

The turbo in question was high flowed by a previous owner, so the current has limited knowledge as to its modifications. But we do know for certain that the front housing has been machined out.

Is it possible that only the front of the turbo, so the compressor wheel and housing were upgraded? And if so, is this still considered a "high flowed" item?

I have faith in the seller and I am not trying to deny his knowledge, nor am I denying his legitimacy, as I said, I have already put some money down on the turbo, I just want to know exactly what has been done to it is all.

I found this information on the Garrett page

"What is High Flowing? High flowing a turbocharger involves fitting a larger compressor, or turbine wheel to a turbocharger to improve its physical flow capabilities. Take a VL Commodore turbo for instance, this will be stripped, cleaned, reconditioned, and at the same time, fitted with a compressor wheel that has a larger inducer, and exducer measurement. The fitment of the larger compressor wheel also means that the compressor housing will require machining to fit the larger wheel. As this wheel is now larger than factory, this would be classified as a "high flow" turbocharger, as the compressor wheel is "higher flowing" than the standard item. All of this process is done in house at GCG Turbochargers. High Flowing usually adds 1-2 days turnaround on top of a standard repair."

In this quote it says that they fit a larger compressor wheel, or turbine wheel. Does this mean that only the compressor"front" wheel is changed, and not the rear?

Kind Regards,

Michael

Edited by poeticjustice88
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