VG30 turbo on rb20

[MATTs14]

I was just searching and ive seen that the vg30 turbo on an rb20 will yield some pretty good gains. Can anybody confirm this?

[TSL]

Yes it will.

[MATTs14]

Will it give better gains than an rb25 turbo?

[jdmser]

This all depends on which vg30 your talking about. The vg30et, vg30det, or vg30dett. The et is a t3 bigger than the rb25 and has steel wheels, the det is the largest turbo Nissan put on anything and the most rare, and the dett turbos are smaller than a t25.

[MATTs14]

So the turbo from the turbo z31 would be the best bet? Im probably not gonna find the one from the vg30det and the small twin would somewhat of a downgrade

[jdmser]

That and the t25 foot on the dett turbos will not bolt to the t3 flanged rb20 manifold. The good part about a z31 turbo is that you can still get gaskets and stuff at a Nissan dealer. The bad part is that if you don't get the internal gate/o2 housing with the turbo you'll be doing a lot of fab work. The t3/to4e I run has an exhaust housing that is similar to the z31s. I recently bought a block off plate and will be welding a flange on the manifold to run an external gate which is what I or anyone else should do if they are considering running high boost.