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Can Somebody Explain The Difference

lesseragitant
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hypo33 Contributor

hypo33

Posted
Posted

i found this info on the forum- as i am looking at turbos aswell

HKS GT2835 technically they are a GT3071R 56T in cropped turbine form.

Using the current Garrett terminology means its easier to compare turbos because their formula tells you the turbine family ie GT30 followed by the compressors major or outside diameter in mm . If you apply this then you can see that a "GT2871R 56T" and a "GT3071R 56T" use the same identical compressor wheel .

The turbine side is quite different the GT28 series turbo having a 53.8mm 9 blade 76 trim wheel and the GT3071R in cropped form has a GT30 10 bladed wheel at ~ 56.6mm and 84 trim . The HKS GT2871R 56T uses a custom GT28 turbine housing with the T3 flange cast into it and in 0.64 A/R . The HKS GT3071R Pro S uses a custom GT30 turbine housing in 0.68 or 0.87 A/R ratio , it also needs their unique dump pipe to suit their custom housing

Courtesy of discopotato03, not my info

GTScotT Grand Master

GTScotT

Posted
Posted

It's very hard to tell you what it is without knowing the part number.

If you could look at the tag and try and find a number that would resembles '700177-0010' we could then tell you what turbo it is.

It is likely to be the HKS cropped version of the 3071 as mentioned above, however it could be a number of variants which would change its suitable application.. Some were made for single use, others were made for twin kits like on GTR's.

Please post the part number that is similar to what I have posted above.

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