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Did you say you could source HKS 2530's?

If you can't I'm after basically the same thing 'Jason' is:

How much horsepower/kilowatts do you want? 230rwkw

What are you using the car for? 90% Street

When do you want boost roughly? Full by 3500 if possible

Do you want power early or late in the rev range? A little lag is fine but must not drop off boost at all

What Mods you engine has or is going to have including computers or exhaust etc.? 3" turbo back exhaust, intake, FMIC, fuel pump, injectors, power fc or a tune, possibly cams

Obviously, what car? R31 with a RB20DET

Intercooled? Standard copy cooler 600x300x76

Still running AFM or upgraded or no longer there? Stock RB20 AFM, but would upgrade to Z32 if necessary

Custom exhaust manifold or standard? Standard

External wastegate or internal(limited to virtually 450hp)? Internal

I was thinking the GT28R, but I really have no clue. :P Maybe too small?

Edited by R31vhead
Did you say you could source HKS 2530's?

If you can't I'm after basically the same thing 'Jason' is:

How much horsepower/kilowatts do you want? 230rwkw

What are you using the car for? 90% Street

When do you want boost roughly? Full by 3500 if possible

Do you want power early or late in the rev range? A little lag is fine but must not drop off boost at all

What Mods you engine has or is going to have including computers or exhaust etc.? 3" turbo back exhaust, intake, FMIC, fuel pump, injectors, power fc or a tune, possibly cams

Obviously, what car? R31 with a RB20DET

Intercooled? Standard copy cooler 600x300x76

Still running AFM or upgraded or no longer there? Stock RB20 AFM, but would upgrade to Z32 if necessary

Custom exhaust manifold or standard? Standard

External wastegate or internal(limited to virtually 450hp)? Internal

I was thinking the GT28R, but I really have no clue. :) Maybe too small?

You will need the Z32 AFM to achieve that power.

Yes the GT28R is too small.

There is not a lot that can be put onto the T3 flange unless it's HKS. I can't get HKS turbos but I can have lots of magical things done to Garrett turbos. I will talk to my guy tomorrow to find out what can be done with a GT30R to make it fit.

All prices have come down since I signed a new contract with a larger distributor so it should still be fairly cheap even with machine work.

Hi just wondering do you get other turbo's that weren't on that list? i'm in 2 minds at the moment do i got with 2 replacement turbos for my GTR or do i go all out on 1 big one do you get say HKS T51R SPL Ball Bearing Turbo? if so how much would one cost? thanks

I don't do HKS but I can find an equivalent turbo. It all depends on what you want your car for. Straight line....go the big single. Track work and fast response...go for upgraded twins. $2550 for a pair of 2860R's. That will need very little modification to fit (1/2 a hole on the exhaust dump) and you can achieve 700rwhp with the right backup mods. A big single like a T51 or even a T04Z will set you back $1900 and you will still have to outlay another $800 or so for the manifold to bolt it on plus change the exhaust right back to the cat plus change the inlet, run external gate.....all this would add up to around $3600. It is still cheaper and a far better setup to retain the pair.

Ok thanks for the info after racking my head i've decided to keep the twins in true GTR style those 2860R's would be similar to 25/30's wouldn't they could you please give me some more info on these turbo's thanks

http://www.turbobygarrett.com/turbobygarre...0R_707160_5.htm

These turbos are making 700rwhp with the correct supporting mods. They are not quite as big as the 25/30's but they come on boost much sooner and are only $1360 each. I have been told by my supplier that they have a slightly different T25 flange which is half a bolt hole out on one of the holes. He assures me that it is not a great deal of a problem. They have a very deceptive power curve in that they don't punch you in the back of the neck but will still pull hard from 3000 rpm. Better suited for track work in my opinion. If you want a 25/30 I will give you an updated price tomorrow.

Ok the GT2860R (400hp T25 flange) is still $1360

A GT28RS (380 hp T25 flange) is $1455

And I appologise but he has given me a price for the GT2535R instead of the GT2530R

Price for GT2535R (380 hp T25 flange) is $1720

All of these will do the job nicely but I have been recommended the GT2860R as BT & D centre have fitted them to two GTRs now and the customers are loving them. I also sold a set to a track GTR owner who needs super response.

Hey Dan

I was talking to you about turbos and fuel consumption last thursday and how my car sits on boost at 100+ km/hr and never got to ask if there is a compatiable turbo that wouldn't see boost till 3500rpm or so, I haven't got a clue if this is a good idea or not but am interested to hear your opinion.

Hey Dan

I was talking to you about turbos and fuel consumption last thursday and how my car sits on boost at 100+ km/hr and never got to ask if there is a compatiable turbo that wouldn't see boost till 3500rpm or so, I haven't got a clue if this is a good idea or not but am interested to hear your opinion.

Well , funny thing is my highway mileage is friggin awesome. I get around 750k's to a tank on the highway....but only 350-400 around town. I can drive along in 4th gear at 100 and still not be on boost lol.

for $2100 I can get your RB25 turbo grafted onto a GT30R front which will be a 500hp turbo on the stock manifold and dump. You will get full boost around 3500-3800 on that one. Only other setup costs are adapting to the 4 inch turbo mouth and oil and water lines ($100-$150 for both)

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