i have the zc tranny and when i boost it feels like it is the strongest from 4-6k, and it doesnt really pull too hard after that. when im on the freeway @ 70 mph, it pulls harder in 4th at 3500 rpm, then it does in 3rd at 5000. is this correct. it feels wierd, maybe the torque drops off, but would a higher geared tranny like an hf be better for turbo? Is there anyway to make a hf tranny use the 3 piece zc axels because i dont want too much torque steer. thanks guys
brian

 

bump

 

more load = more boost = more pull

hence your 4th gear is creating more load on the engine and spooling the turbo. If you want it to spool better in lower gears, may want to consider a larger exhaust setup or BB turbo.

 

thanks for the response. yeah it feels pretty weird. havent ran it yet, but i am going to do a couple of experiments with shifting. thanks