BIRCHZ71

iTrader: (4)

Bare with me.
I have always raced in tow haul but now that i have this tb converter in it seems to pull harder without tow haul on. If im just cruising at lets say 2100rpms and turn on the tow haul the motor jumps up like 500rpms. Definately didn't do that with the stock converter. Not only that, i did 2 exact same punches from about 35mph. with tow haul on it it was decent, then i did it again with it tow haul off and the tires lit up.... so should i be running in tow haul? does it really make the trucks run faster?

Wheatley

iTrader: (12)

All tow haul does is tranny parameters,nothing to do with engine managment,air fuel and timing ECT.

BIRCHZ71

iTrader: (4)

in other words...leave it off?

454navyss

iTrader: (46)

some guys tune their tow/haul as their "race" mode so when they turn it off they still have their street transmission settings for normal driving. when your truck was tuned they probably left your tow/haul mode alone so you can still use it for towing. if it pulls harder with it off leave it off

Wheatley

iTrader: (12)

You can do it either way
I can set it up to hold gears much longer and or take all the TQ managment out with tow haul on for example

BIRCHZ71

iTrader: (4)

this sounds very appealing. ill be letting you know next time im headed down to houston.