WOT= hesitation/missing

[Slow95gsx]

The car is a 95 gsx. Mods are 3 in. turbo back, small trust fmic(havent seen any pressure drop) MBC, Dejon intake and spec stage 2 clutch. Today under WOT the car hesitates and starts missing and the idle randomly jumps around from 800-1400. My guess is a vaccum leak. If i let off maybe 90% throttle it runs fine. As soon as I go 100% throttle it starts doing it again. Any ideas?
Aaron

 

[1993-Talon-TSI]

i have the exact same problem except with a '90 2wd turbo, does your idle go rough and lumpy and bounce up and down. under boost my car sounds like it running on two cylinders.

 

[realhp=turbo]

i have the exact same problem except with a '90 2wd turbo, does your idle go rough and lumpy and bounce up and down. under boost my car sounds like it running on two cylinders.

Try replacing the power transitor. And test the coil pack per the chiltons manual.