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GT2835R ... which version and A/R size should I get?

Scooby_Steve
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Scooby_Steve Community Regular

Scooby_Steve

Posted
Posted

Hi,

I'm considering buying a HKS GT2835 turbo but i've noticed that there are many versions of this turbo, eg. the GT2835 Pro S and I think just the standard GT2835.I've noticed that the flange types are different on these two models, one having a T3 and the other a T25.

Also, there are different A/R specs on some of the turbos.

Could someone please indicate which would be the better buy for a RB25DET.

Currently I'm assuming a GT2835 Pro S (so it has the T3 flange) with a A/R of 0.68. Is this A/R too small for my car? The other choice is a A/R of 0.87.

Any help would be great. Thank you

Regards

Steve

  • 3 weeks later...
Lithium Grand Master

Lithium

Posted
Posted

Pro32 - He specified "RB25DET"...

As an additional question (hope this is constructive for the guy who started this thread, otherwise - apologies) if one buys the HKS GT2835 "Turbo", what do you receive? Is it JUST the unit? Oil lines, dump pipe, etc will need to be made up additionally?

GunMetalR33 Mentor

GunMetalR33

Posted
Posted

First thing first:

You need to get the T3 flange for a RB25DET, Greenline & Nengun sell the HKSGT2835 Pro S Kit (T3 flange) which gives you everything you will need for just under $4000

I think, but am not sure that the GT2835R is a T25 flange type which will not fit on your rb25det mf...

Pro32 - He specified "RB25DET"...

As an additional question (hope this is constructive for the guy who started this thread, otherwise - apologies) if one buys the HKS GT2835 "Turbo", what do you receive? Is it JUST the unit? Oil lines, dump pipe, etc will need to be made up additionally?

33SOM Experienced

33SOM

Posted
Posted

I see on nengun you can get the kit ($3125) or just the turbo ($2335). I was thinking cause of the price difference would it be better just to get the turbo? Cause surely with the saved money I could get oil/water lines made up and a new intake pipe?

Cheers

B0BB0 Collaborator

B0BB0

Posted
Posted

yeh its 25 as some have said

from the best of my memory, he got, turbo all the lines oil/water, dump pipe, and a hks heat sheild. it runs on the stock manifold. and it was the kit purchased from nengun, personally i think you are better off buying the kit rather than the turbo itself, kits are made to work

gtst25 Proficient

gtst25

Posted
Posted

I've got the kit coming with the .68A/R.

You can't get the larger A/R one in kit form - I've tried both nengun and greenline.

If you get the turbo by itself you'll need to make a new dump, and probably new inlet/outlet. The kit comes with everything - new inlet, dump, heat shield, oil and water llines etc.

The .68A/R should give you over 260rwkw without cams if you've got the right other usual mods.

Good luck!

SLY33 Mentor

SLY33

Posted
Posted

from dump pipe to cat is called a downpipe. When you buy a dump pipe on its own its usually just a stumpy pipe leading to your downpipe. There are guys who make custom dump/downpipes in one piece tho. My HKS dump pipe mated straight up to my 3inch downpipe which used to connect to the factory dump pipe.

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