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3200 miles with Superchips flashpaq
I loaded up the tow/performance tune a couple of weeks ago, and hit the road pulling my 20ft, 6-7000lb enclosed car hauler from TX to OH. Made another trip from TX to KS this weekend.
Power has been a very nice improvement, they claim 50hp/100ftlbs. It stopped 95% of the down shifting out of overdrive to pull most hills. Stock, the truck would downshift at 70-72mph on almost any hill, especially on cruise control. It felt much weaker than my tuned 7.3.
Shift quality is also very good, just slightly quicker and firmer, but not harsh.
Mileage has dropped slightly. The mpg meter in the truck reads high now (just like with the 7.3 and 6.0 tuners) so hand calculations show either the same to 1 mpg less. This truck has always had mediocre mileage anyway, only getting 8-10mpg pulling this load stock. It's seen 7-10mpg with the tuner. The 7mpg came with a 25-30mph headwind, running the big hills in KS and OK on I35 at 70.
No soot in the tail pipe, regens seem to be about as often (around every 1.5 tanks), no high coolant temps. Boost is lower at cruise by about 5psi. Still gets up into the mid 30psi range when pulling hard.
I'm disappointed with the mileage, but overall driveability with the added torque is much better. If you need the added punch, this tune does the job nicely.
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Black/black leather 2008 F250 FX4 - work in progress - 20" KMC Hotwheels d-back in black, RDS 60gal aux. tank/toolbox Gallery
Black 2002 7.3 Excursion (sold) - 103k and lots of mods, great truck!
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