Roland@pcmtec Posted May 13 Share Posted May 13 By default the 2018+ 10R80 10 speed automatics will not shift gear when the gear shifter is in manual mode and will bang off the limiter. For drag racing it is desired to use manual mode to ensure the gearbox does not downshift repeatedly if you need to pedal the car due to traction issues. However this presents other issues, first gear is very short and it can be hard to shift without either shifting too early, or hitting the rev limiter. To enable the car to shift up (but not down) gears when the rev limit is hit, simply enable the following scalar. auF66680 "Switch to allow or disallow engine speed upshifting in SST (Selective Shift) There are also several other scalars for other modes such as "temporary override SST" which is the mode that occurs when you use the paddle shifters but you do do not have the shifter in the manual position. This is enabled by default in 18+ S550s. auF66679 When in SST mode and these scalars are set to 1 the car will shift at the RPM shift point set in auF66981 As you can see with the stock Ford OEM values in base it shifts at 7350 in 1st gear and 7450 in sport. In 6th and upwards this is reduced to 6800 down to 5100 in 9th->10th gear. If you want to know what shift schedule you are in datalog MID77885 Indicates which shift map is currently being used for determining the upshift and downshift points. This may help you diagnose why a car is shifting at a different RPM than expected Another table to look at is auF67145 which is the acceleration rate eg rpm/s The X Axis is the gear, the Y axis is the RPM. This will stop a gear shift if the engine RPM is accelerating too hard to shift gear. This stops a gear shift from occurring at low engine acceleration rates. This may need to be adjusted in some scenarios where an engine is on the limiter and won't shift (eg when auF66680 is set to 0) 2 Quote Link to comment Share on other sites More sharing options...
midwestracer2003 Posted June 4 Share Posted June 4 this is great ty for this going to go load it in right now Quote Link to comment Share on other sites More sharing options...
Roland@pcmtec Posted June 6 Author Share Posted June 6 On 6/5/2024 at 7:04 AM, midwestracer2003 said: this is great ty for this going to go load it in right now Definitely don't copy the values from the tables, they are the stock ones for an FSJJD variant, however they may be the ones to modify if you are having issues! The scalars however do need to be changed. 1 Quote Link to comment Share on other sites More sharing options...
midwestracer2003 Posted June 6 Share Posted June 6 all I had to do what switch auF66680 to 1 all my shift tables are already set to 7500for most shifts ty worked great now i can launch in 2nd gear and can roll race without shifting to drive 1 Quote Link to comment Share on other sites More sharing options...
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