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What Rb26 Turbos Do I Have?

Ramius83

By Ramius83,
in Engines & Forced Induction

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Ramius83 Collaborator

Ramius83

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What's up mates. I recently had a rear turbo grenade on me about 4 months ago while driving to work one day on my R32 RB26DETT engine. Well, I had a bloke that bought an RB26DETT engine from an importer here in the States. The engine was slightly modified, having wire taps on the harness, aftermarket FPR, R34 valve covers, etc. Anyways, I ended up buying his set of turbos from him. I was in the middle of installing them when I noticed something peculiar about them. On my stock turbos, IN A/R is 0.42 and the EX A/R is I think 0.48 if I can see my pictures clear enough. Well, the "stock" turbos I bought from my friend are different. They read IN A/R of 0.60 and EX A/R of 0.64. Side by side they are obivously larger, especially on the turbine side. Judging by what little research I did, I am thinking they are N1 turbos, but I am not sure, and if they are, I am not sure from what chassis, ie. R32, R33, or R34. I went ahead and installed both of them anyways. I feel like I am making a little more power at the same boost level of 13lbs, and it is of course taking a wee-little bit longer to spool. I have taken a few photos and I am wondering what you think. What are these turbos and what max PSI do you think I can run on them? Thanks all.

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D-Garage Newbie

D-Garage

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dude they look exactly the same as the pair of N1 turbos i fitted to my gtr,

check the spacing of the oil drain flange bolts,

the genuine n1's are the same as stock, R34 n1s are slightly wider bolt spacing, only 5mm but different.

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Ramius83 Collaborator

Ramius83

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dude they look exactly the same as the pair of N1 turbos i fitted to my gtr,

check the spacing of the oil drain flange bolts,

the genuine n1's are the same as stock, R34 n1s are slightly wider bolt spacing, only 5mm but different.

Well, I used the drains from my stock turbos because he gave me his turbos with no components on them, ie. actuators, drains, line feeds, etc.....

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Stealth-Z Rookie

Stealth-Z

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Look at the plate in between the cooling lines on the center housing. There should be a plate with the part number. I have a set simular to yours. The numbers on mine are 14411-06U00.

Information I have found is these are R32 Nismo type turbo's with a 15 degree cutback and a 270 degree thrust bearing. They are supposed to be capable of about 300ps each. As for Maximum boost, cannot help you there. I do not think you would want to go as high as ball bearing equivelents.

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