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heard a rumor that the vq30det turbo will swap over to Rb20/25det with no problems. im just trying to confirm this because i cant read japanese all that well and cant even really find any info on it. just looking to upgrade for cheap

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https://www.sau.com.au/forums/topic/161531-y33-vq30det-turbo-to-rb2025det/
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Funny you should mention that, I've been looking at this engine for some time. From the looks of it yes the turbo will fit (T3 flange) you'll need to get some sort of elbow made up though.

The exhaust housing doesn't look too big, so not sure if it would really be much of a benefit on an RB25, and it will most likely have a nylon compressor wheel if you get a new one from the VQ30DET Neo

Yes the do fit with little modification. you will need to get the inlet pipe for your intercooler streched or get a new pipe as the the VG30 turbo has a 3" outlet compared to the stock skyline one which is 2.5". they are a great upgrade on the RB20 though . But as far as bot up pattern and flange they are identical to the stock.

be careful Vex typed vg30 NOT V Q 30 so not sure if he's right there as they are very different turbo's.

here is some for sale

http://www.vq30det.com/phpbb/viewtopic.php?t=40

and some dicussion about the idea

http://www.vq30det.com/phpbb/viewtopic.php?t=29

still meaning to get two and have a crack at it :nyaanyaa:

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