I'm really curious if anyone can post up dynos when only the turbine housing size is changed (and include boost plots?). .48ar & .63ar are the most common, but hopefully someone has done it with a .82ar housing as well.

The size of the turbo/motor doesn't really matter, as long as boost was the same and the turbine housing is the only difference. I'll probably have to settle for MHI/DSM dynos and do the math to get AR sizes.

 

Housing size will matter a bit, but for those posting please put the actual EXHAUST WHEEL size that you are using. This will keep HiProfile's thread focused. Also not whether or not it is a Garrett or Borg Warner, as the volutes b/w the 2 are different widths affecting the A/R measurement.