Smaller turbine wheel?
Thread Starter
Joined: Sep 2007
Posts: 4,188
Likes: 292
From: woodbine, md
Smaller turbine wheel? I think I have a 75 comp, and 92 turbine wheel with a 110 AR (BW S475)
T4-didn't get any paper work, so going from memory
Anyway, can I go to a smaller turbine wheel and gain lower RPM spool
I have a 4" downpipe to the rear now, and was hoping I could reuse everything-would a smaller turbine still have a 4" outlet
How can I tell what my current turbine is to be sure
T4-didn't get any paper work, so going from memory
Anyway, can I go to a smaller turbine wheel and gain lower RPM spool
I have a 4" downpipe to the rear now, and was hoping I could reuse everything-would a smaller turbine still have a 4" outlet
How can I tell what my current turbine is to be sure
For lower rpm spool the ideal way to get there is smaller a/r turbine housing to get exhaust energy up at lower rpms. Goin to smaller turbine may not help that.
You can take off the housing and use calipers to measure the wheel
You can take off the housing and use calipers to measure the wheel
I think I have a 75 comp, and 92 turbine wheel with a 110 AR (BW S475)
T4-didn't get any paper work, so going from memory
Anyway, can I go to a smaller turbine wheel and gain lower RPM spool
I have a 4" downpipe to the rear now, and was hoping I could reuse everything-would a smaller turbine still have a 4" outlet
How can I tell what my current turbine is to be sure
T4-didn't get any paper work, so going from memory
Anyway, can I go to a smaller turbine wheel and gain lower RPM spool
I have a 4" downpipe to the rear now, and was hoping I could reuse everything-would a smaller turbine still have a 4" outlet
How can I tell what my current turbine is to be sure
My s475 t4 with the 83 turbine and 1.10 AR goes positive at around 3400 normally driving around. It may get into boost quicker from a dead stop/racing. This is on a 6.0. I wouldn't want spool any slower, but cant help but wonder how bad they backpressure is with this turbo.
Thread Starter
Joined: Sep 2007
Posts: 4,188
Likes: 292
From: woodbine, md
Mine is a 6.0 also-Hopefully next week i'll put the drag radials on and do some data logging, i'll be able to see right where it is-I know once it takes off the boost jumps quick-I am going to go to 2.75 first gear in the turbo 400 to get more low end
Just used to Prochargers, lol
Just used to Prochargers, lol
