R34 Gcg Highflow

[drgnball34]

I understand that an R33 turbo highflowed with VG30 rear housing gives alittle bit extra power rating then the standard 450hp. But will an R34 also with a VG30 rear housing produce even more? Or would it bascially be the same as the R33 with the VG30? And roughly how much more power does it give and does it produce any more noticable lag?

[RB30-POWER]

VG30 and R34 NEO have the same rear housing. (stamped OP6)

R34 NEO has nylon compressor wheel like the Series 2 R33 has.

VG30 uses the alloy wheel same as Series 1 R33.

If that clarifies the similarities for you.

[AlexCim]

LOL, in other words, the only diff between R33/R34 turbos is the rear housings, which are the same for R34/VG30 anyway.

[ryan_o_grady]

LOL, in other words, the only diff between R33/R34 turbos is the rear housings, which are the same for R34/VG30 anyway.

Correct. Most VG turbos were roller and a few of them were ball as some people have claimed. High flowed ones get new bearings anyway. So my guess is no difference after the high flow. Are the oil and water lines the same on the VG as they are on the RB?

Edited July 21, 2006 by ryan_o_grady

[Sydneykid]

I understand that an R33 turbo highflowed with VG30 rear housing gives alittle bit extra power rating then the standard 450hp. But will an R34 also with a VG30 rear housing produce even more? Or would it bascially be the same as the R33 with the VG30? And roughly how much more power does it give and does it produce any more noticable lag?

VG30 and R34GTT turbine covers are the same

Changing from the R33GTST turbine cover to the VG30 (or R34GTT) turbine cover gave 10 rwkw (265 rwkw to 275 rwkw) on an R33GTST (usual upgrades including Poncams).

Boost build was slightly later, around 300 rpm, noticeable, but not terrible.

cheers

[Cubes]

Correct. Most VG turbos were roller and a few of them were ball as some people have claimed.

VG30 uses the alloy wheel same as Series 1 R33.

The later models (not z31 vg30 that are more similiar to the VL Turbo T3) run the exact same center as the R32 RB20DET turbo, the center being that the center bearing cartridge, turbine and compressor wheels.

So in other words, the later model vg30det turbo's are an RB20DET turbo with slightly larger compressor and turbine housings.