Jpr5690

iTrader: (13)

ok after my converter install and tune i notice when i get alot of wheel spin out of the hole ill occasionally tap the revlimiter... to carify i dont slam the **** our of it or hang on it but i do notice it will very slightly and quickly bang it right before shifting (kinda like 1 tap on the limiter then a shift) ...BUT if i go from a roll or launch the car as so not to spin the **** out of the wheels it i wont bang the limiter at all... this has happened infrequently in the 1-2 and the 2-3 shift but only when i have wheel spin off my launches


my theory is since the car shifts based on mph (and the revlimiter is based in rpms) the wheel spin coupled with the looseness of my tci ssf 3500 converter is allowing my to clip the revlimiter due to inaccurate mph readings moving up my shift points slightly past the revlimiter??? and this is why when i dont have wheelspin to dont bang the limiter


can someone verfiy this or if not tell me whats wrong i belive my limiter is set 300 rpm above my shift point

although when the car was scanned it showed the car calling for the shift at the right rpm it just took a couple hundred more rpm for it to actually happen? .furthermore once the shift begins it is very quick and firm


the only other idea (which i hope is wrong) is the tranny cant do the shift because its too much power for it and it needs the revlimiter to be banged to cut the power to complete the shift.. kinda like a tq management but if this was so then why does it only happen when there is wheel spin???


HELP!!!!!!!

Jpr5690

iTrader: (13)

anyone?

fastlt1

iTrader: (4)

My did the same thing until I got my tune fixed. I think all he did was raise the rev to about 500 more then the shift point. He said gave some big explanation but it fixed it. Try it first.

Jpr5690

iTrader: (13)

mine has been raised a bit and ive been tuned ...

fastlt1

iTrader: (4)

Mine was too before the convertor. He said after a convertor they have to leave a larger gap between the rev limiter and the MPH is shifts. Something about where the convertor causes more slip and you are turning more RPMs at a lower speed. I'll try to find the email. It was long explaining it but the tune fixed it.

Jpr5690

iTrader: (13)

well **** so basically by shiftpoint is too close to my redline ... ok well at least its not a bad tranny

gwj

If I get a lot of wheel spin mine will actually shift 1-2, bog, shift back to 1
then through the gears normally after the mph builds. This is on street
radials. It all happens pretty fast. It's a pain in the *** when it
happens, but I learned to feather the gas off the line.
I've changed shift points/rev limiter with some help.
2.73 gears + 3500 stall + 2.5 STR = chaos w/o sticky tires.
Once a 2.73 starts spinning it's hell to stop, too.

Jpr5690

iTrader: (13)

yea mine just taps the limiter once before a shift but i think my shifts are set at 6300 with a 6800 limiter i guess its just part of the fun... all well i was just worried it was a symptom of a failing tranny.. like i said if i make it off the line ltes say with a 2.0 or better then no probs but if i get one of those 2.3 60' then im fucked!!!