Automatic R33 Gtst Turbo Different To R33 Manual Gtst Turbo?

[jakez88]

hey guys i was really interested to know if anyone can double check for me if turbos from auto r33 gtst's are/look different to manua r33l gtst's?

i bought one and it looks like this.

now can someone tell me if this is an r32 gtst turbo or possibly an "auto r33 gtst" turbo.

i have heard this in a couple of cases where the auto r33 turbos look different to manuals but looks similar to r32 turbos but with bigger compressors or something along those lines? do series 1 or 2 matter also?

can anyone confirm?

Edited February 24, 2012 by jakez88

[hypergear]

Looks like a R32 GTST turbo. Got photo of the rear housing and wheel?

[SargeRX8]

Doesn't look like the series 2 r33 turbo...

[gotRICE?]

Yeah looks like an R32 turbo with R33 actuator.

This is my old R33 Turbo (with R32 actuator )

[jakez88]

I'll post one up for u guys when I get the chance.

[paulr33]

fyi

the turbocharger on the auto and manual GTST (of the same model) is identical

ie nissan did not make different turbocharger models for auto and manual

they did, however, use a different actuator spring on the auto turbocharger

this is because the AUTO gtst runs less boost than manual from factory

from paulr33.com

ECR33 manual is 385mmhg which is 7.4446 psi

ECR33 auto is 270mmhg which is 5.220 psi

[jakez88]

ah fair enough thanks for that paul. so this is no doubt a r32 gtst turbo?

here are some pics of the rear housing. bigger compressor then normal?

sorry about the crappy pics lol.

[gotRICE?]

Hmm. Im no RB20 expert but that rear wheel looks alot bigget than my old stock R33 rear wheel. (PS the compressor is the front wheel )

[jakez88]

ah yeh sorry i meant turbine LoL

and yes i thought so. could it be a highflowed 32 turbo?

[paulr33]

see if the exhaust wheel is magnetic

highflows usually use steel exhaust wheel and the std exhaust wheel is ceramic so it wont be magnetic

[hypergear]

its been high flowed, would be good mild upgrade for a Rb25det. must use unrestrictive braided oil feeding line.

[jakez88]

Ah awesome. Thanks for tht stao...its actually going on a rb20 so should be good. Thanks heaps...looks like I got bargain lol

[jakez88]

Could I get away with just using the stock lines at all?

[hypergear]

you can, if you can drill out the oil restrictor on the hollow screw and the benjo. not recommended.

[Ultimategtr]

you can, if you can drill out the oil restrictor on the hollow screw and the benjo. not recommended.

Thats what I have done, been running fine for over 3 years. You just have to be careful of how much you drill into the banjo, as it doesnt like too much or too little oil, esp if its journal bearing.

[ZiAzon]

@paulr33 I beg to differ about the boost levels between the r33 auto and manual. I drive a auto, and before I put a boost controller on, it was boosting to around 7psi in high boost mode. Which should be just over halfway on the stock gauge.

[paulr33]

its in the nissan service manual......

the spring rates for manual and auto are tested at different levels of mmhg - aka boost pressure

[Got a Pulsar]

I drive a auto, and before I put a boost controller on, it was boosting to around 7psi in high boost mode.

Says it all. High boost Mode would've had the stock solenoid hooked up which gives 2psi extra.

My car was auto from factory but converted to manual, boost was 5 & 7psi and 7psi with high boost mode.