How much to gain from S475 to S480?
11-16-2012, 10:36 AM
#1
How much to gain from S475 to S480? Dr. Turbo will machine my cover and put a new impeller on my S475 (T6 1.32AR) for ~300 which essentially turns it into a S480. I think I am currently running out of turbo as the car picked up basically no MPH going from 16psi to 20psi.
Just trying to figure out if it is cost effective to spend 300 for a 5mm larger turbine or not.
I don't think I am running into back pressure issues as it only takes 22psi on the gate to make 20psi at the manifold. I think the compressor is just not moving enough air currently.
Just trying to figure out if it is cost effective to spend 300 for a 5mm larger turbine or not.
I don't think I am running into back pressure issues as it only takes 22psi on the gate to make 20psi at the manifold. I think the compressor is just not moving enough air currently.
11-16-2012, 05:06 PM
#6
Theres a 300 horsepower difference between the 75 and the 80.
Are the other aspects of the tuneup the same? Or did you raise boost and lower timing?
I wouldnt go bigger than the 83mm compressor with that turbo as a single. The 88 works better with the 96mm turbine on much smaller inch applications. Seen higher than expected backpressure as a single. For that its best to go to the S500 chassis.
Are the other aspects of the tuneup the same? Or did you raise boost and lower timing?
I wouldnt go bigger than the 83mm compressor with that turbo as a single. The 88 works better with the 96mm turbine on much smaller inch applications. Seen higher than expected backpressure as a single. For that its best to go to the S500 chassis.
Trending Topics
11-16-2012, 08:51 PM
#8
Dr. Turbo will machine my cover and put a new impeller on my S475 (T6 1.32AR) for ~300 which essentially turns it into a S480. I think I am currently running out of turbo as the car picked up basically no MPH going from 16psi to 20psi.
Just trying to figure out if it is cost effective to spend 300 for a 5mm larger turbine or not.
I don't think I am running into back pressure issues as it only takes 22psi on the gate to make 20psi at the manifold. I think the compressor is just not moving enough air currently.
Just trying to figure out if it is cost effective to spend 300 for a 5mm larger turbine or not.
I don't think I am running into back pressure issues as it only takes 22psi on the gate to make 20psi at the manifold. I think the compressor is just not moving enough air currently.
