Underdrive pullies

[G20ps]

I am trying to get lighter and/or smaller underdrive pullies for a SR20DET that I am putting into my P10. I understand that the crank pully is a little different from the SR20DE, so I am not sure how to go about getting these pullies...has anyone gotten any special made by someone like Unorthodox Racing? Or know where else I can get some?

[JustinP10]

I believe Greddy makes a set for the SR20DET motors. I think they make them for both the red top and black top Silvia motors, but i think those only work in a RWD application. Would the Unorthodox set work with the BB det motor?

[P10DET]

The UR pulleys work just fine with the BB DET. I have them on mine. They don't work with the GTi-R DET.

[G20ps]

So do I order UR pullies for a regular DE, or do I order UR pullies for a DET? (I just called UR, and someone told me that they didn't think that the DE pullies, specifically the crank pulley, would work on a DET, but the guy I would need to talk to was not in...)

[P10DET]

Originally posted by G20ps
So do I order UR pullies for a regular DE, or do I order UR pullies for a DET? (I just called UR, and someone told me that they didn't think that the DE pullies, specifically the crank pulley, would work on a DET, but the guy I would need to talk to was not in...)

If you have a Bluebird DET, just order DE pulleys and don't even mention the DET. You'll be fine. I am using the ones from my DE on my DET.