Originally Posted by
Cobra4B
^ Any experience w/ the new TVSs w/ the 4 rotor setup? Supposedly they're more efficient and don't heat up as bad or as rapidly as the older designs.
GM has managed to make the ZR1 work... originally they were considering twin turbos for the car, but were able to meet all their engineering goals w/ the new TVS setup... allbeit with the blower in the valley/intercooler on top config.
Just one TVS so far and it was in a swap and tuned on the street (in NC, not here or it would have gone on the dyno). They still get warmer than centris, though it looked to be a shade better than the previous PD setups. The ZR1 blower is nearly maxed the way it ships on the car. It gets nasty hot going up much quickly. It's enough for the way the car ships, but they didn't leave much room at all for going up on the unit.