Transbrake not releasing

[Otto J]

Well while at the track the other dayi have found a problem in my t400. While holding the brake waiting to launch the boost comes up to about 15#s and i let go of the button, all the car does it bumps the lights and sits still.Let offf the throttle and get back on and hte car is fine.

If i release the transbrake while its spooling, lets say inth e 10-13# range it releases fine.
Only if i let the convertor level off and release the brake does it not release.

Will a stiffer spring on the sol-valve do the trick, I havenet had time to try anything yet
Thanks in advanceI bleieve it is a hiptser brake

 

[blackplague]

How's the phasing of

The modulator valve? It's very important. Sometimes you have to space the horse shoe retainer {modulator retainer} with washers behind it to get the mod valve in the right phasing. I don't thing a stronger spring will help as it is a fluid release design { fluid release is on the spring side already, opposing the solenoid plunger}.