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GTR Turbo install questions

GTR032

By GTR032,
in Engines & Forced Induction

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GTR032 Experienced

GTR032

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Hey ppl,

Ok heres the scenario, I took the turbo's and all associated pipework connections off my engine on my R32 GTR to get completely rebuilt, steel wheels etc. That has been done so now its time to put everything back together. First question, is the exhaust manifolds different front to rear? I know the dump pipes are different. Without knowing if the manifold/turbo combination is apparent I bolted both turbo's up to manifolds and dumps. Installed rear turbo then front and all associated oil/coolant lines, then the exh front pipes. When it came time to install the intercooler pipe between turbo's (bit with TWIN TURBO on it) they dont meet up properly. As in the pipe at the rear is about 20mm too close to the rocker cover as in bends up from the turbo. Second question, are they turbo's aligned differently? My thoughts are, i've put the wrong turbo on front to rear, or ive put the wrong exh manifold on front to rear or Both. The other is the rear turbo compressor housing was not put back together in the same alignment. When looking at it from the front of the car, the rear intercooler outlet on the turbo is about 10mm closer to the block than the front. Thus making the pipework not meet up. SO, does any one know if the turbo's and manifolds are different front to rear. The manifolds do have markings on the top of them. Any help or input is greatly appreciated..

Jono

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GTR032 Experienced

GTR032

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5 mins spent marking things is 5 hrs work saved

I know :D i marked everything else! dump pipes, inlet, i/cooler, oil/coolant lines but forget or just thought the turbos and manifolds were identical. Oh well, better get undoing everything again. Hope the new tomei exh manifold gasket didn't get too 'crushed' so I can use it again..

Jono

vspecv Proficient

vspecv

Posted
Posted
I know :D i marked everything else! dump pipes, inlet, i/cooler, oil/coolant lines but forget or just thought the turbos and manifolds were identical. Oh well, better get undoing everything again. Hope the new tomei exh manifold gasket didn't get too 'crushed' so I can use it again..

Jono

manifolds are different, turbos are the same.

mambastu Collaborator

mambastu

Posted
Posted

R33 GTR manifolds are exactly the same as each other.....are you sure the R32's are different ?

I had exactly this problem on my GTR turbos after re-building them. I just needed to re-allign the compressor housings slightly in relation to each other.

GTR032 Experienced

GTR032

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  • Author
Posted

Problem was fixed, rear turbo compressor housing just had to be rotated around a little..A lot of effort taking them damn turbo's off again dammit :) oh well..the cars back going again after a few months which im very very happy for.

Jono

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