I have recently been thinking about setting my truck up with a set of twins. I am currently running a bell usb turbo, mack 5 injectors, edge drag comp, and a full DTT tranny. To save some money i was thinking about running the bell as the top turbo, has any one ever done this? Also as far as the bottom turbo i was thinking a B2 and what size external wastgate do you twin guys run with a set up like this? So far i have really liked my bell but i am looking for that extra kick.

 

The USB would be better paired with a Big Brother turbo or something larger IMHO. It's almost large enough to negate the need for twins unless you want to go large. Then again, I've not had any first-hand experience with the Bell.

brnadon.

 

Well the bell that i run is only efficent up to 50 psi. I dont know if that makes a diffrence but I have herd of people running the ksb-1 on the top witch is similar to the bell, the only thing that i have herd is the bell spools slower.