Spellbound

of the TC after heads/cam? My Girlfriends car is locking up at 35mph

wait4me

iTrader: (10)

probably when you switched gears you dont have the lock up tables set correctly..

2001NBMZ28

What's the correct part throttle lock up speed supposed to be? Mine always locks about 38 MPH. I originally had 2.73's.

foff667

iTrader: (2)

its tps dependant anywhere from 30 on up it can lock really depending on if your in D or OD

foff667

iTrader: (2)

did u get it tuned differently? is it locking at this speed in D or OD? cuz depending on the stock gearing those lockup points sound stock and wouldnt say they are early...if youve not already been tuned and its causing surging issues get your lockup points changed like i did.

jimmyblue

iTrader: (11)

The lockup table is just speed & TPS. You would want to
scale the lockup table by (new ratio / old ratio) if you didn't
change anything else. If you get into tuning the part throttle
shift points then the lockup also has to be slid around to make
it playnice and stay out of the way of the shifts. This gets
to be difficult. So I just got rid of 3rd gear lockup entirely and
at least got 4th the way I like.