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HKS GTSS v GTRS

jezzrrr

By jezzrrr,
in Engines & Forced Induction

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Merli Grand Master

Merli

Posted
Posted
Hi guys, I posted this a while ago, but for those that haven't read it....

Here is the data on the HKS turbos

.....................Compressor......................Turbine  

....................Trim...Inducer....Exducer...Exducer...Inducer....Trim  

GT2530..........63____1.860____2.344___1.883____2.098____76  

GTRS.............52____1.997____2.773___1.833____2.098____76  

GT2835..........52____1.997____2.773___2.020____2.204____84  

GT2540..........46____2.016____2.972___1.833____2.098____76  

As you can see the GTRS is merely a 2835 compressor (and cover) with a 2530/40 turbine (and cover).

Hope that helps

A few questions regarding those measurements if you don't mind?

Just because two housings have the same A/R, it's entirely possible that they are completely different in design is it not? A/R is just a ratio of area of the scroll to the distance from the shaft, and speaks nothing of actual design?

Also with wheel measurements, what does "1.997" mean? Can you have two different compressor wheels in DESIGN, but still have the same measurement of 1.997 inducer and 2.773 exducer?

One last thing, apparently the GT-RS compressor housing has a new "ported shroud" design to try and reduce surging, so surely it's not the same as the GT2835?

Cheers,

Andrew.

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