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Tuning for part throttle max torque
Posted: 2021 Apr 27, 15:04
by bad86capri
So im thinking putting my QH in 95 f150 4.9L and tuning it. The biggest question i have is tuning part throttle timing curve for max torque in towing situations. Whats the best method to do this? And do i need to install a wideband to assist in tuning WOT?
Re: Tuning for part throttle max torque
Posted: 2021 Apr 27, 15:15
by decipha
trial and error
wideband isn't needed just leave her in closed loop and do a wot pull apply your corrections then allow power enrichment again no biggie
Re: Tuning for part throttle max torque
Posted: 2021 Apr 27, 15:33
by bad86capri
So just so im thinking right. in a speed density system i would set the commanded afr and the drive the vehicle. the ecu would then self adjust based on the VE table? would i then take the amount its trying to correct and apply that to the VE table?
Re: Tuning for part throttle max torque
Posted: 2021 Apr 27, 16:14
by decipha
There is no commanded AFR in closed loop as fueling is based entirely on the o2 switching.
In tunerpro click on the show data history tables and select N_MAP_FUELERR1 and then select running average from the other drop down menu
Go out driving around logging or just play back a log and it will populate that histogram table with your corrections for the VE table.
Go to the ve table and apply the correction from the table.