VG turbo improvements?

[Rawze]

(11-19-2016 )Rig Wrench Wrote:  I know companies like Fleece Performance make parts like wheels and controllers for the smaller vgt's, the he351 and he400 I believe. I'm gonna look into seein if they do anything for the others as well

I worked with a company in NZ that tried like hell to improve the billet of the Holset for the ISX. They seriously knew what they were doing, and I consulted with them a bit on it,... in the end, the improvement margin was so incredibly narrow that is was not even worth the effort of having one made. the housing on the other hand,.. yes can be improved slightly. it is cast.

No one has beaten the holset in several years for efficiency, size for size. Not even Borg-Werner comes close.