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Hi guys, (question relating to rb26 bolt on turbos)

I was just wondering if there was a difference between the gt2560's(-7,-5,-10) and the gt2860's(-7,-5,-10)? or are they the same turbo/s?

if they are different, which of the 2 are closest to the HKS GTRS's? it would be the gt2860's as they are t28 based??

i just wanted to know as i didnt realise there were a gt2560 range but a mate of mine insists he has a pair of gt2560-5's. i was alway under the imporssion there were only gt2860's as i was looking at a set of gt2860-5 if they were direct bolt on!

thanks for any help

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The GT2560R uses the 60T GT25 turbine and the GT2860R uses the 78T GT28 turbine. Pretty simple.

The HKS GT-RS is the Garrett GT2871R-10.

this is right as i went thru the same confusion when i bought my -10's

here is an email from gcg:

"Going by Garrett's designation system, these are technically GT2871R Turbochargers. The only reason we still stick to calling them "GT2860R -10 Versions" is that there would be too much confusion between these and the SR20DET bolt on GT2871RS."

-5s support 360hp: http://www.turbobygarrett.com/turbobygarre...0R_707160_5.htm

-7s support 310hp: http://www.turbobygarrett.com/turbobygarre...0R_707160_7.htm

-9s support 360hp: http://www.turbobygarrett.com/turbobygarre...0R_739548_9.htm

-10s support 460hp: http://www.turbobygarrett.com/turbobygarre...R_707160_10.htm

Edited by Marko R1

link for GTR -9s should be http://www.turbobygarrett.com/turbobygarre...9R_707160_9.htm

The bollocksed up naming has tripped you up - it mentions the -9s are 330hp in the blurb, but 360hp under "powershift". Pretty sure the 330 is the right number.

Have a look at the turbobygarrett site and note the turbine dimensions where their list changes from GT25xxR to GT28xxR .

Treat the HKS turbos ie GT2510/2530/2535/2540/GTRS as GT28xxR turbos , aside from the 2510 these all use the same NS111 turbine anyway . GTR spec GTSS or GT2859R I think uses the same turbine as GT2510 .

A .

are the -10 direct bolt on?? the look fairly different to the stock turbos and the -7 and -5's

after being defected i have deciuded to use bolt on turbos rather than a single conversion. i was interested in getting a set of gtrs' but the exchange rate is making them very expensive so i was looking into the garrett option!

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