Haydos87 Posted July 16, 2020 Share Posted July 16, 2020 Looking to turn off torque converter lock-up for gears 1st 2nd and 3rd with ZF trans?? Quote Link to comment Share on other sites More sharing options...
Romulus Posted August 22, 2020 Share Posted August 22, 2020 On 7/16/2020 at 7:11 PM, Haydos87 said: Looking to turn off torque converter lock-up for gears 1st 2nd and 3rd with ZF trans?? Look at the Shift Map/Converter Lock schedule. There are 5 schedules, that will tell you where to adjust. Quote Link to comment Share on other sites More sharing options...
Steve752 Posted March 31, 2021 Share Posted March 31, 2021 Regarding those 5 ZF Converter Schedule Tables (e.g. ZF03885 Converter Schedule 2 Manual Shift Mode) I wonder if someone can help as to the meaning of the three columns for each gear, L, M & H ? Quote Link to comment Share on other sites More sharing options...
BeerTurbo Posted August 3, 2021 Share Posted August 3, 2021 On 3/31/2021 at 4:35 PM, Steve752 said: Regarding those 5 ZF Converter Schedule Tables (e.g. ZF03885 Converter Schedule 2 Manual Shift Mode) I wonder if someone can help as to the meaning of the three columns for each gear, L, M & H ? did you work this out mate Quote Link to comment Share on other sites More sharing options...
Roland@pcmtec Posted August 3, 2021 Share Posted August 3, 2021 Fairly sure it is low medium and high load Quote Link to comment Share on other sites More sharing options...
Steve752 Posted August 4, 2021 Share Posted August 4, 2021 occurred to me it may part of a TCC partial lock strategy viz. Light, Medium, Hard still not 100% sure though & havn't verified. Not sure if the the ZF runs it, but common these days to see TCC partial lock (e.g. controlled approx 50 rpm TCC slip) - helps keep the fuel economy benefits right down at low rpm , but the slip isolates out otherwise annoying driveline booms & vibe disturbances - above certain rpm then can transition to full TCC lock etc.. 3 Quote Link to comment Share on other sites More sharing options...
Roland@pcmtec Posted August 4, 2021 Share Posted August 4, 2021 Sounds like a reasonable hypothesis to me! Quote Link to comment Share on other sites More sharing options...
Andre34 Posted March 27 Share Posted March 27 Sorry to bring back an old thread. Looking at the table above, would i just need to change the number to 0 for no converter lockup or would i need to add a high number? Quote Link to comment Share on other sites More sharing options...
BeerTurbo Posted March 28 Share Posted March 28 18 minutes ago, Andre34 said: Sorry to bring back an old thread. Looking at the table above, would i just need to change the number to 0 for no converter lockup or would i need to add a high number? High numbers. 1 Quote Link to comment Share on other sites More sharing options...
Puffwagon Posted March 31 Share Posted March 31 Putting 8000 in the shift lock table will keep the converter unlocked for most of the gears. That value will still let the converter lock up at 7000rpm in 5th and 5500rpm in 6th, so on the off chance you will be actually going this fast and want the converter unlocked still, you should use a lightly higher number. An OSS of 8000 is 312kph in a awd zf territory, so unlikely it will need a higher number than that. Click on the vehicle speed tab in the unit converter, then you can adjust the values to see how different OSS numbers affect when the lockup comes on in regard to RPM etc. 1 Quote Link to comment Share on other sites More sharing options...
Andre34 Posted March 31 Share Posted March 31 1 hour ago, Puffwagon said: Putting 8000 in the shift lock table will keep the converter unlocked for most of the gears. That value will still let the converter lock up at 7000rpm in 5th and 5500rpm in 6th, so on the off chance you will be actually going this fast and want the converter unlocked still, you should use a lightly higher number. An OSS of 8000 is 312kph in a awd zf territory, so unlikely it will need a higher number than that. Click on the vehicle speed tab in the unit converter, then you can adjust the values to see how different OSS numbers affect when the lockup comes on in regard to RPM etc. Ok sweet. I used 5000 to start with but i've now changed to 8000. Would there be much of a difference in feel? I personally havent felt a difference in my NA fg. Should i also set these unlocks to 0 or should they be 8k too? Quote Link to comment Share on other sites More sharing options...
BeerTurbo Posted March 31 Share Posted March 31 I had my turbo teritory unlocked in 1-2-3 in drive. I noticed it in mid throttle take off seemed smoither. I also took to drive maps, vs preformance maps n halved the difference (except the 100 percentage shifts). This made the most difference in low to mid throttle movement as it would holder the lower gear longer instead of basically trying to leave the line in 2nd Quote Link to comment Share on other sites More sharing options...
Puffwagon Posted March 31 Share Posted March 31 1 hour ago, Puffwagon said: Click on the vehicle speed tab in the unit converter, then you can adjust the values to see how different OSS numbers affect when the lockup comes on in regard to RPM etc. ^^^Do this so you understand what is happening. It will also explain why you can't feel a difference, after you have a think about it. 1 Quote Link to comment Share on other sites More sharing options...
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