Home made turbo...

[armbrusb]

I would like to put an RB25 compressor wheel and cover onto a VG30 turbo. Does anyone know if I can do this at home or is it something that needs to be done by a professional?

[Baz]

Hrmmm.... I believe you need the right tools in order to balance the shaft correctly. Also sounds like a difficult job to do as well

[R31Nismoid]

If you have all the balancing equipment then yeah, if not... then nah

[discopotato03]

To do that is very easy , since the ceramic turbines are the same just exchange the exhaust housing on the RB25 turbo for the VG30 one .

Going inside these Hitachi cores seldom works , the big drama is retaining the ceramic turbine when torquing up the compressor lock nut . Mostly the turbine pops off the flanged (hot side end) of the shaft where it was bonded together . Its usually cheaper to replace these cores when they die with another one than it is to attempt repairs .

I've never seen the R34 GTT turbo except in the above mentioned post . Nissan would have taken full advantage of the Neo engines more sophisticated engine management and variable cam timing , which would allow the turbo to have higher gas flow and not loose low end torque . From memory the RB25 Neo made 206 KW and the earlier version around 185 , I suspect the R34 turbo was altered to support this . I am curious to know what the power curves are like between the RB25 Neo and the std RB26DETT .

Cheers A .