For some reason my L is launching like crap!!!
I can barely spin the tires with my f-1's.

If I hold the brake get the R's up to about 1800 then nail it there is some hesitation, then it comes alive.
The truck feels like there is plenty of power once I get going, it is just extreemly hesitant off the line.

It is acting like if it is either not getting into boost as fast as it used to, or the tranny is slipping, or the torque converter is going out, or who knows what else.

any input would be greatly appreciated.


Mods: 01 Lightning, 4 lb lower, TB, line mod valve, CAI, Water pump, e-fan, denso IT22's, 75hp NOS, JLP tuned Diablo chip, bassani exhaust, boost bypass mod

 

It is kinda hard to tell by what you said, but I see you have a throttle body. I would Check the TPS and make sure it is in spec first. Then we can go from there.

 

TTT

 

I had a similar issue and after going through checking TPS, boost acctuator, driveshaft replaced etc. Turns out my stock torque converter was bad.

 

do you have the boost bypass mod??? If not, you could be tripping the bypass valve.