Andor

I'm looking to do a single turbo conversion on my s6 fd3s. It's a drift car and I'm on a budget. The motor will be stock port and I'm looking for somthing responsive without sacrificing too much top end. KKR have a good rep for reliability for a cheaper turbo. So i'm looking at this one KKR660X. I think it's ok but i'm still getting to grips with the ins and outs of turbo's. So opinions please.

kenn_chan

If the below quote from the dealer is correct, than the exhasut houseing is a T25 variant. too small for the rotary engine

"The twin-port turbine housing is a 0.84 with the same flange size as Nissan RB25 and Ford XR6, while the compressor housing is a 0.70 with a four-inch inlet."

it is an even smaller turbine (hotside) than a T-3 which with the exceptions of the IHI RX-6, and the GT35R is often too small. both of these turbines sport a large exhasut wheel which makes up for the smallish inlet of the hotside.

in all reality if you want a small fast spooler with about a 300~350ish rwhp go with a t-4 flanged TO4E 57 trim compressor with the smaller "O" trim wheel and a .84 housing.

you have insta-spool with a moderate upper end. be aware though that it will choke the engine above 7K RPM. If more power is required go the the same turbo and a 60 trim compressor.

Andor

the rb25 and ford xr6 turbos are t3 flanged. This should be good for 350hp? I think I saw someone here getting just over 400hp with a t3 flanged gt35r.

kenn_chan

sorry you are correct about the RB being T3, I mixed it up with the SR its the one that has a T25 flange. If the exhaust wheel is big enough to lower the overall restriction then it should be OK, it really is dependant upon what the hotside can support.

cheers

kenn