- Location
- Forked River, New Jersey
yea, i run a 3400 stall but bc of the torque its actually abt 3600, and the way racers usually use their automatics it to convert the valvebody into a manual valvebody, so the shift isnt determined by the vac over pressure or bc computer input on newer models, when u shift it is when it shifts.. up or down doesnt matter(fully manual valvebodys) also the powerglide is the way to go on a big tire car bc you can run a 5000 stall, a 33in tire and fly down the track only having to pull the shift lever once.. and thats on 1/4 mi the dragsters use a slip/synk style clutch that works off inertia.. as it spins faster and faster it tightens up giving the feeling of a constant velocity trans on in nissans terms the cvv trans.. which is nothing more that a snow mobile transmission system that baically uses a large rubber band around 2 cylinders and as you change the diameter of the drive vs driven cylinder thats how the symulate a shift or to accelerate "without" shifting.. but those clutches need to be replaced and rebuilt after every run..