Gt2835/3071

[handyandy]

Hi guys, after reading through the rb25 turbo results, i'm after stats on this turbo.

eg: when boost hits, how many rwkw can they put out, etc.

Can someone point me in the right direction or talk from experience.

i'm after a responsive turbo for my rb25det running forgies and soon cams.

For street and some track

Chaseing 280ish.rwkw

Thanks Simon

btw, was considering a gt30 but too big and laggy and want more power than a highflow.

[handyandy]

Someone has to know something about this turbo.

[paulr33]

its basically the oem no brand version of the hks 2835 most likely

do a search on the rb25 turbo upgrade thread and look for the hks 2835

[discopotato03]

Yes been thrashed to death this one , off the top of my head I think ~ 400 Hp was the limit of the thing (GT2835) depending on manifold/gate/tuning and 101 other things .

GT2835 expensive especially in T3 flanged integral gate form but easy to fit .

Garretts GT3071R "WG" or waste gated is a waste of space because it uses an inappropriate GT28 exhaust housing so wrong flange and Rat Sht turbine performance .

IMO the best is the "real" GT3071R (CHRA no 700177-5023) with the full sized GT30 turbine in a REAL GT30 exhaust housing . ATM the REAL exhaust housings are only available without integral (internal) wastegate , though Garrett have been promising an integral .82 housing for some time .

Cast Iron Rule - research turbos because they are expensive . Don't just believe its good because the bloke with the cash register says so . YOUR the one that has to live with it if you don't like it .

Cheers .

[BHDave]

The hks 2835proS will do what you are asking fairly easily if you are going to put cams in, a bit less without. IMHO they are the best bolt on street turbo for an rb25 by far, but you are paying for it.

Considering that your HKS unit will set you back around 3500 if you can slip it into the country without duty or tax (but includes everything you need to bolt it on) you should also look at the 3071 that disco has mentioned above as it is considerably cheaper to buy but you have the added expense of the new manifold, wastegate, dump and intake piping, and oil and water lines. If you can do it for the same price as the hks unit i'd be surprised.

End of the day, both will give similar results from what i have seen.

[IFRYCE]

$3500 is a bit of a over priced. Try 2800 for a one suited to a Toyota Chaser, RB one would be same price.

[BHDave]

3500 is the full rb25 kit including all the bit's needed for bolt on. 2800 will get you the turbo only.

I'm comparing apples with apples as buying the turbo only is only part of the cost of getting the thing fitted.

[Dale FZ1]

Cast Iron Rule - research turbos because they are expensive . Don't just believe its good because the bloke with the cash register says so . YOUR the one that has to live with it if you don't like it .

This is what took me the time (12 months) to know with certainty what I wanted. And it meant I had to reject the advice from ALL sellers - they wanted to push the sizing UP and didn't seem to understand my objectives and preferences. In the end it was a conversation with a Garrett engineer that confirmed my convictions.

The HKS unit will do everything you want, but the cost is savage.

[Trooper]

This is what took me the time (12 months) to know with certainty what I wanted. And it meant I had to reject the advice from ALL sellers - they wanted to push the sizing UP and didn't seem to understand my objectives and preferences. In the end it was a conversation with a Garrett engineer that confirmed my convictions.

The HKS unit will do everything you want, but the cost is savage.

Who did you speak with at garrett? was this in Sydney?

[Color_Of_Green]

This is what the HKS 2835 Pro-S kit looks like. I have it installed on my R33 and make around 280rwkw.

http://www.nismo.com.au/pricelists/HKS/hks2835prokit.jpg

dyno sheet here:

http://www.nismo.com.au/Dyno/LUKE.gif

Botls right on. Note the nice dump pipe.

[Dale FZ1]

Who did you speak with at garrett? was this in Sydney?

Yes, he works out of Sydney. Busy but helpful. I felt comfortable with his advice because he grasped what I was actually trying to achieve with the upgrade.

[Dale FZ1]

This is what the HKS 2835 Pro-S kit looks like. I have it installed on my R33 and make around 280rwkw.

Botls right on. Note the nice dump pipe.

Very impressive, and typical of what you can expect with a Japanese-style full kit.

No argument that you get what you pay for.