S400 exhaust housing ?

[pwrstrokenstang]

On my 7.3 i have been running the 1.10 t-6 housing on my s475/96-88, it works fine spools at about 26-2700 and on the track has lugged down to 2500. Now though gearing changes will put my rpms up to 4200 or so down the track instead of 3200 so should i go to the 1.32 housing? Pros, cons to the big housing? Fwiw i am also running bullseyes 2.6 race cover and billet wheel.

 

[pwrstrokenstang]

Anyone?

 

[Cummin_un_glued]

I would try it first and measure drive

Sent with a Droid RAZR in one hand and 14,000 volts in the other.

 

[99Powerstroker]

I think you'll be ok, I ran one with 400/900s and fuel only I was 40-45 psi at 3800 rpms. Never got around to checking drive pressure but it ran really good.

 

[pwrstrokenstang]

With the 1.32? I am gettin 50-55 now at 3200.

 

[99Powerstroker]

Yea same turbine on an s472. On the spray I would be around 55 ish.

 

[house]

whats your boost

 

[pwrstrokenstang]

50-55 running about 3200 rpm down the track. 2.6 and 3.0 cover had same boost. Thats with a 11.15:1 final, but gonna try a 14.6 final with duals.

 

[house]

id go 1.25

 

[pwrstrokenstang]

Checked into that today actually joe. Prob will, wanna run the 1.10 first so i can get a feel for some other changes, but i actually didn know they are that easy to get till i checked.

 

[chvyrkr]

I'm gonna be running the same turbo with a 1.15... Lemme know how you like the 1.25...