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Rb25det Neo In R32

neo32

By neo32,
in Engines & Forced Induction

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The Dan Grand Master

The Dan

Posted
Posted
only the bastardised ones with "bolt on" rear housings have cropped turbines. the proper gt30s with a proper IW housing have the 60mm turbine

All Garrett GT turbos have cropped wheels except the 60mm one. And the 60mm version came out after the rest so it isn't even the 'original' 3071 that everyone claims it to be.

The Dan Grand Master

The Dan

Posted
Posted
go cut 4mm off your turbine and leave it in the same housing, see how it goes.

find out exactly what cartridge you have then find a housing to suit. you cant use a gt30 housing designed for a gt30 turbine if you have a cropped 56mm turbine.

Where are you getting this information?

4 of the 5 GT3071R's come with cropped turbines. I think you are getting your facts mixed up

The Dan Grand Master

The Dan

Posted
Posted
yes they do, but they all come with t25 flanged turbine housings too. the only t3 one is the full 60mm version, which is the one everyone on here always talks about and trys to get

Yeah, the one this guy has is the 700382-12 with a VG30 rear housing though. Sonic do a 0.73 rear housing that can be machined to suit everything from a GT2860RS to a GT3076R -12. It's a T3 flange and Skyline dump compatable.

That is the housing he needs to go to.

It flows more than the VG30 housing so it will take care of his power fall-off problem

The Dan Grand Master

The Dan

Posted
Posted
if i got .82 rear how much response will i lose

If you go to a 0.82 rear housing you will need to use the stupid XR6 dump flange so it will need to be modified.

The typical response lose expected from 0.6 - 0.8 would be somewhere around 400 rpm.

But you also have a smaller, more restrictive housing on at the moment.

Moving to the 0.7 rear will allow more flow all round and will retain the skyline 6 bolt dump pattern.

I would say - expect 1 bar at approx 3800 (as that turbo is known to be particularly laggy)

  • 1 month later...
chrisR34GTT Community Regular

chrisR34GTT

Posted
Posted

17.4psi before 3k? That sounds ridiculous, I mean my stock R34 turbo only hits full boost (10.5psi) at about 3200rpm and I thought stock turbos are the some of the most responsive turbos out there... Is my turbo laggy or something?

  • 3 weeks later...
  • 3 weeks later...

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