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What Turbo To Use

R TUNE

By R TUNE,
in Engines & Forced Induction

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Al Grand Master

Al

Posted
Posted

Brentt, i have replied to your PM.

I have the same goals for my build and had chosen to Garrett GT3076R-IW (GT30R) 0.83A/R. With my engine specs i expect to get about 300-330rwkw@20psi, with the response equivalent to that of a std hi-flow on a std rb25 engine.

Not sure if this will be too tail happy, till the car is running, but the other option would be a GT35R.

Bumblebee Experienced

Bumblebee

Posted
Posted

im currently building an RB26 race spec motor. Its my daily driver but will also be my circuit car.

Im currently leaning towards a GT35R in the .86 rear trim for the best compromise between response and power.

I ran a GT35R with a 1.06AR on my rx7 race car and the response was phenomenal and the power was substantial.. (400hp @ 16psi) not to mention the torque.

Being a smaller motor i think the .86 or .82 whatever the option was might be the better pick.

300rwkw is easily achievable with this turbo without having to run too much boost

9krpm Mentor

9krpm

Posted
Posted (edited)

I had a chance to drive 3 cars with RB30DETT. Their turbo are twin TD06, T04Z and twin T517Z.

The T04z was laggy and wouldn't' be appropriate for the track.

Try T518Z or T517Z with 10cm housing

Edited by 9krpm
datsqik Enthusiast

datsqik

Posted
Posted

My pick would be a 60-1 comp with a small stge3 t3 turbine with an .82 a/r rear. Use a decent merge style small runner exhaust manifold with something like 260 tomei cams and spend some time setting them up. This can make an easy 400rwhp with response. You can even try a single throttle body style inlet manifold.

Wheezy Mentor

Wheezy

Posted
Posted

Something around the Trust TD07 / T78 range would be killer for response on a 30DET.

Although a K5 Blitz seems to work well on 2J and RB26.

If I was looking at garrett trim turbo's Id look at the HKS equivalent. No point in pouiring all this money into a car only to have a generic turbo slapped on.

*wheezy awaits flamage :P

discopotato03 Grand Master

discopotato03

Posted
Posted

What other things like std/not std gearbox ratios and tyres are you intending to use .

These things make a difference when looking into turbos because some combinations are going to need more low down torque than others .

If you want it to be a mountain of torque from low revs and max out at around 500+ you could think along the lines of a GT3076R with the 0.82 or 1.06 turbine housing .

If 600 is the ask the maybe a GT3582R .

Personally I wouldn't bother with Garretts version of the T04Z , if I wanted power in that region I'd go straight to their GT4088R which is a twin scroll turbocharger probably in at least the 0.95 A/R turbine housing .

A .

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