How does a .81 a/r exhaust housing work on the 6.0l motors? I am running 9 psi and currently have a .96 housing. I would like it to spool up a little sooner. Anyone try this and like it?

Also does anyone make an adjustable fuel pressure regulator that fits in the stock location?
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What housing do you have 60, 67, 70, 76?

 

It is a TO4E 60.

 

On my 4.8 with the T60-1, I when from the .81 to a .68 and it gave me boost about 500 rpm Quicker, but at the same time I did the swap, I found out that my turbine wheel was messed up. I found another one that was supposed to be a q-trim like what I had, bet when I when to change them, I compared them and the new one is about 1/8 bigger on the major and looks to much more aggressive. Between fixing the wheel and changing the housing, I went from hitting full boost just past 4k to getting it about 3400. And I can brake stall all the way to 7 pounds fairly quickly now where I could only get 3 pounds before it I waited long enough. I think I'm giving up a little on the top end, but I like it better this way.