T70 Turbo onto RB20DET?

[50FFT]

Here is my situation,

I have an R32 GTS-T Currently running the following:

RB20DET (Internally Standard)

Microtech Computer

Profec B Boost Control

GTR Injectors

500hp Fuel Pump and Fuel Reg

FMIC

GT-28 w/gti-r exhaust housing

Exhaust and all the normal stuff

My engine is healthy as far as i know and am wondering how my RB20 would push a turbo of this size. Obviously i would have to high mount the turbo and prolly flow the heads a bit, but does anyone know how this would drive or how to make it more driveable? Its just i have a guy with a new T70 thats too big for his car and he wants to swap me....

Any help would be good, ppl with this setup would be unreal.

Thanks,

Matt

[32drift]

lagggggggggggggggggg!!!!!! Yeah too big for RB20 more suited to RB25 or RB26 or RB30.

HKS 2530

HKS 2540

GARRETT T28

HKS GTR-S

A new HKS GT-SS is on the market and is great for Rb20

[Roy]

They are about a 800-850 hp turbo, so on a std RB20 with std g'box i think you will find you will be struggling to make any power with the thing.

RB20s can handle decent sized turbos whilst still being reasonably responsive. Depending on what you want from the car and what you can afford, id say get a 2835, or even a 3037 with a small exhaust housing if you want to be a little more adventurous on the std bottom end:)

Can i ask what power you are making with the GT28, any specs on the turbo?

[50FFT]

um, i dont know specs as i dont know much at all...lol i know my car made 320rwhp before i put the 25 box and lightened flywheel in, thats at 14psi

[Roy]

Noice,

What sort of rpm was needed to make 14psi in 2nd gear, and likewise in 4th gear?

[50FFT]

lol, again i dunno...i have a sheet in the car from previous owner, i shall grab it and post up in a minute,

tah

[50FFT]

lol, all my sheet says is power, gear, boost and speed. If this helps it made 14psi at 110kph in third....

Matt

[boj01]

Doesn't really help. The people who tuned it also should have run it in 4th as to give a 1:1 ratio.

[Roy]

LOL...thats cool, and easy to fix.

What size tyres do you have? For example if your rears are 235/45/17s, and your run was in 3rd gear then...

3,500rpm , 73km/h

4,000rpm , 83km/h

4,500rpm , 93km/h

5,000rpm , 103km/h

5,500rpm , 113km/h

6,000rpm , 124km/h

6,500rpm , 134km/h

7,000rpm , 145km/h

7,500rpm , 155km/h

So assuming you are running 17" wheels, then thats roughly 14psi @ approx 5200rpm?!?!?! Seat of the pants does that sound about right?

If your running 16" or 18" wheels these speeds will be different:(

[50FFT]

ohk well i will give you an update as soon as i need my next tune, thanks for everyones help,

matt

[dangerous_daveo]

Dude, it will work fine. Just your going to be spending more on brakes You gota get that sucka to spool somehow. Best way, STAND and I do mean STAND on the brakes and the go go pedal at the same time should make boost

But, I do think its too big unless your going to go crazy on set up to get it to come on boost.

[Cubes]

Would the T70 even make decent boost (1bar) before 7000rpm on the rb20???

Serious question, not buggering around.

[dangerous_daveo]

Would the T70 even make decent boost (1bar) before 7000rpm on the rb20???  

 

Serious question, not buggering around.

Maybe... Serious tho 3rd gear, stand on the brakes, it works.

My mates gemini with effectivly a t60 on it, and its a 2L 6cyl, if he stands on both pedals, it makes about 20psi by 4000rpm Wont make anymore, the brakes let go after that. Its funny as.

[Nismo_Boy]

Would the T70 even make decent boost (1bar) before 7000rpm on the rb20???  

 

Serious question, not buggering around.

Depends what T70 we are talking about? The Ebay one? Or a somthing else?

My mates ca18det with the ebay T70 kit is making 260rwhp @ around the 7000rpm mark with 1bar. So one would asume a rb20det is up to the task.

[Turbine]

Hi guys, What does this T70 turbo flow like. In other words does it have a map available?