06Sierra2

i know its been posted before but i just wanted to add my props to circle d. tc is the 3k-3200. added the vette servo and aluminum forward and accumulator pistons also. shifts real firm, pulled harder and still had great street manners. would definately reccomend circle d to anyone! question though, do u guys still run any added line pressure over stock in your tunes with the stall and servo? going to the track this wknd but gonna tune tomorrow night first.

max1

iTrader: (12)

cant wait to install mine.. this weekend-

*lockup at 3rd WOT . . ..

budhayes3

iTrader: (19)

You'll be OK with added line pressure since the only thing increasing the firmness of the shifts is the servo, which just has more surface area for more apply pressure. The higher stall converter will actually soften the shifts. Just don't go too crazy with the pressure, you don't want it shifting harshly or barking the tires, that's how you break hard parts

8.1 HD

iTrader: (3)

Depending how high you go you may want to unlock during the shift. Tuning the way a trans. shifts is a long process since not everyone likes the same thing.

double047

iTrader: (15)

Good deal, thanks for the news as I am getting closer to doing this performance mod.

Circle-D

iTrader: (21)

Thanks for the props, we appreciate it. Adding a little line pressure is ok as long as there is no shift kit. You either want to add it electronically or hydraulically, not both.

Chris

06Sierra2

yeah thanks for the help guys. we left the shift pressure where it was from before and if feels good, firm but not harsh. no shift kit so im good there. thanks for the help!

.James.

iTrader: (17)

wish i had the same stall, post videos homie

whitedakota

iTrader: (1)

how'd you do at the track? im curious myself.

06Sierra2

running tomorrow night. will post times when i get back. idk why our track is not open fri or sat but its only open on sunday and weds other than the shootouts. will let u know tomorrow night!