Slipping Zf

[Banjora07]

Hi been having trouble with so called custom road tunes so it went to bta motorsports to get a sct box and tune but on the dyno he said the box was slipping and needs a rebuild from my toque reduction switch being turned of the last tune was with hp tuners gearbox was feelin fine with hp but the engine tune was sh*t that's a whole different story and now they said I need a rebuild anyone else had the problem it slips in 4 it's had a gearbox service 6 months ago and done 112000 with no leaks any info would be good thanks 05 typhoon zf 6 speed

[discostig]

Yep mine slipped, yep I got it rebuilt.

200,000km but was slipping for a long long time, probably since 150,000 or longer.

edit - XFT had to tune in 4th on dyno due to 3rd slipping. I couldn't change from 3rd to 4th at WOT, it just redlined 3rd.

Edited 12/11/13 06:01 AM by -SteveR-

[RHR]

If you don't mind me asking but who did your initial "tuning"

[Banjora07]

So turning off the torque reduction switch can that damage the gearbox

[LU82]

Lol I think someone asked the question in another thread about his original tuner but I don't think he wanted to say who it was. But I think there were a few good guesses.

Edited 12/11/13 10:07 PM by LU82

[MattyP]

What is this torque reduction thing?
never heard of it

[OZYWALKER]

^^^^

Pretty sure the ECU cuts spark to a few cylinders to reduce the torque placed on the ZF between shifts. Can be heard as a "fart" noise between shifts when at wot.

[Ralph Wiggum]

Torque managment does a whole suite of things. Trans Truncation (as mentioned above) reduces spark on a gearshift to reduce torque.

I personally have played with a car that had a ZF that was starting to slip on shift. Retuned with the Torque Module turned on and trans truncation adjusted the car shifts nicely under WOT conditions..

[Banjora07]

Ali tried to play with the settings of the box but this was the best outcome he could get so its time for a box rebuild as the old saying goes you get what you pay for

[MattyP]

that's really unfortunate
Tbh though I kinda like that "fart" between shifts