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Changing R33 GTR Turbos - advice

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Have one set of imperial spanners and they have rust all over them cause they’ve never been near oil lol 

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Thanks for more input all, sounds like i'll need to invest in a few more spanners.

As for going to single - good question, i'm here and have the -7's so i'll just forge forward and in years to come can come back and reflect on where it all went wrong on this post...

Any thoughts around the gasket / stud kit - plan is to get the complete one and replace the studs potentially?

Views on the oil restrictor for the '7s?

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Don’t need oil restrictors and use genuine gaskets and studs

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Thanks Brett - much appreciated!

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I got the turbos and manifolds off with. Basic set of spanners and a set of kincrome swivel head ratcheting spanners. Those things are super handy for tight spots. You can loosen manifold nuts one click at a time. The secret is to have a ratchet mechanism that is really tight and doesn't have too much angle between ratchet teeth. 

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7 hours ago, burn4005 said:

I got the turbos and manifolds off with. Basic set of spanners and a set of kincrome swivel head ratcheting spanners. Those things are super handy for tight spots. You can loosen manifold nuts one click at a time. The secret is to have a ratchet mechanism that is really tight and doesn't have too much angle between ratchet teeth. 

And you also went to a single :)

Moral of the story, every GT-R owner that wants response and power ends up going to a single modern twin scroll turbo.

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On 10/25/2019 at 7:21 AM, burn4005 said:

I got the turbos and manifolds off with. Basic set of spanners and a set of kincrome swivel head ratcheting spanners. Those things are super handy for tight spots. You can loosen manifold nuts one click at a time. The secret is to have a ratchet mechanism that is really tight and doesn't have too much angle between ratchet teeth. 

Thanks for that, good advice - i've been mindful on the tight spots of getting to everything.

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Regarding restrictors, yes the ball bearing cartridges take less oil than the stock bush bearings meaning oil restriction to be used. I have HKS GT-SS / -9s and the oil restriction came in the way of a restricted banjo bolts supplied with turbos. The difference is something like 5mm To 1.5mm, so definitely required.

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16 hours ago, BK said:

Regarding restrictors, yes the ball bearing cartridges take less oil than the stock bush bearings meaning oil restriction to be used. I have HKS GT-SS / -9s and the oil restriction came in the way of a restricted banjo bolts supplied with turbos. The difference is something like 5mm. To 1.5mm, so definitely required.

Thanks for confirming Ben - the gasket kit I put on the front page has an option to have a 1.0mm restrictor included in it so will look at getting this when ordering.

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Andrew and Michael at Kudos motorsport are great. Yeah mine was the full HKS GT-SS kit with everything included. Looks like Kudos are using the HKS restricted banjo bolts I mentioned in their gasket kit.

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19 hours ago, BK said:

Looks like Kudos are using the HKS restricted banjo bolts I mentioned in their gasket kit.

Awesome - was looking at that earlier today, will order the kit from them. Thanks Ben.

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