Tuning on a customers tow rig yesterday
Here are the results of the tuning session yesterday on an '06 Dually.
His first pull on the dyno was with his current tuning and it produced 500 hp and about 800 lbs of torque.
He was running a Silver 66 with 120's. Had all the necessary supporting mods for that power level.
I could have easily brought him up into the 700's, but this was a DRW tow rig so I didn't put him on kill mode and put his EGT's through the roof.
650 HP is right in the middle of a 66's comfort range, so he'll be good.
He'll be able to use this power level and do anything he wants with the truck.
Notice the smoothing factor in the upper right corner....NO SMOOTHING.
It's hitting the speed limiter at 120 MPH and 3800 RPM's due to the 4.10 gears. This is how I normally try to set the truck up...use all the RPM's it can and make it cut at the speed limiter vs the rev limiter, makes a much better cutoff than fuel getting pulled back due to the rev limiter.
He called me after he left and said the ass end tried to come around on him when he smashed it at 65 MPH.
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Originally Posted by 2007 5.9
