Turbo choices for RB motors

Discuss the RB20, RB25 and RB26 series engines.
gawdzilla
Posts: 2028
Joined: Sat Sep 18, 2004 11:51 am
Car: none

Post

ok, im not sure what flange the RB20 and RB25 use, but the RB26 uses the T25 style exhaust inlet flange. However, the part i am concerned about is the 5 bolt outlet (where the wastegate and turbine outlet are). Apparently, regular garret turbos such as the GT28RS (although they look the same) have a different 5-bolt housing. So the GT28RS disco potato can bolt to my exhaust manifold, but i can no longer use my dump pipes.

What is a turbo that will bolt directly to the dump pipe side?? I know HKS makes turbos like the GT2530 which are direct bolt-ons. anything else? how about the nissan GTiR turbo- the T28?
Modified by gawdzilla at 8:40 PM 2/16/2005


User avatar
Wulfgang
Posts: 908
Joined: Tue Oct 28, 2003 5:41 pm

Post

FWIW the RB20 has a 6-bolt flange.

gawdzilla
Posts: 2028
Joined: Sat Sep 18, 2004 11:51 am
Car: none

Post

ok, so after doing some more research, i found out that the sr20det turbos have the regular Garrett style 5-bolt dump pipe outlet.

It seems that only RB26'es have the weird 5-bolt outlet. can anyone confirm?


Return to “RB20DET / RB25DET / RB26DETT Forum”