im looking at picking up a borg warner s366 turbo with a .91 divided t4. i know that is getting pretty close to as small as possible for turbine a/r. i am wondering if i will still be good to rev to 8000-8200 without dropping off too much. currently i have a t3 1.06 on my 35r and does not start to drop till 7600 rpms and it only drops slightly to 8k. how will it compare to my current setup? also if anyone with a .9x a/r turbine on their turbo has a dyno sheet post it up if possible.

 

I wouldn't worry about it dropping off, if a turbo/turbine wheel is setup properly you can run a .84 divided without it dropping off up top under most circumstances. You don't need overly large A/r's to make good power nine times outa ten. I think the .91 will suit you well. It will certainly breath better up top than what your currently running.

 

ok thanks for the imput sean. i will be running a 79mm turbine wheel. here is a link to the same turbo i am picking up.

http://www.full-race.com/catalog/pro...44dc897ec1e064

 

I figured it was the 79mm wheel as that is the trim that usually comes with the .91 A/r