Base Torque Change for Towing?

[Roc8man]

Should the Base Torque values be changed for towing? I noticed the tune has the top end changed (up) but the torque values around 50-70mm are not that high and when you tow, you need all the torque you can get...

Any thoughts on this? What about the sled guys, they should chime in.

Thanks,
David

 

[Roc8man]

No comments?

 

[Lennart]

If you are looking for more torque you need to adjust the fueling rather than the shift characteristics.
If you are mostly looking for an improved throttle feel, try adjusting the throttle base table some.

 

[sweetdiesel]

depends how it shifts

 

[The Neens]

When we tow with our '02, we run the race tune with stock torque values in the 50-70mm3 range...

 

[Roc8man]

I was really thinking that the torque table limited the amount of torque regardless of the quantity of fuel and therefore if you were towing a heavy load and had plenty of fuel but could be limited to the torque listed in that table. Does that make sense?

For example, if I had enough fuel at 60mm3 to make 1000 nm torque but the torque table limited it to 600 nm, then why wouldn't you adjust the torque table up.

Thanks
David

 

[vortecfcar]

The torque tables are referenced to stock fuel only. The torque tables are built into the tune so the powertrain engineers can say "Part xxxx (example:Allison 1000) can only accept xxx Ft lbs. at xxxx RPM" and the calibration engineers can make it happen without going through the hassle of finding out how much fuel it takes to make xxx trq. Powertrain engineers don't talk in microseconds of injector on-time.

Does this help clear it up?

Nick

 

[sweetdiesel]

I can tell ya this...the only difference ive noticed from running high TQ tables on a stock tune is...pooor mileage
Honestly i thought it would do nothing,but it dont have anymore TQ
that table is a limiter and I run it in the 80+ at 160 + after 100 it shouldnt matter as the experts will tell you,personally I dont follow the experts and run my own things


that table at stock will limit your MM3 as will other tables,but thats a big player

if I was to build a tune from scratch.....remove all limiters