66/84 twin turbo help

[bradford4020]

I have a billet 66/74 1.0 t3 housing. I am going to be putting it over an 84. My questions is will this setup be okay or should I be using an external gate and if the 1.0 housing is what I should be using. This will be on a 12v truck with stock cam. Any input is appreciated.

 

[LAmiller]

I ran my E.D. 366/74/1.0-484/96/1.32 setup at 1250HP all summer and averaged 90psi drive pressure and 75psi boost as long as I kept duration below 2300us, increasing fuel spiked drive pressure into danger zone quickly. It all depends on the amount of fuel you'll be throwing at it. Just monitor drive pressure and keep it within 15psi of boost.

 

[bradford4020]

I was planning on buying some 5x20s or 22s. Maybe I should just hold on to the 5x18s and watch my drive pressure first before I go bigger. Is your 66 a T3?

 

[LAmiller]

66/74/1.0 t4