I daily drive my 5.7 Citadel AWD to/from my job, little over 100 miles, 75mi of interstate at 79mph, and the rest in town, my Hemi averages ~17mpg in winter, 18-19mpg in the summer (yeah it does better in hotter weather ?!?) but my last trip to Gulf Shores I was on some larger interstates and averaged speeds of 80-90+ mph and was getting 19-20mpg, which goes against conventional thinking, but none-the-less that's what I was getting. All I can figure is the RPMs I was turning with the Bully-Dog tune I'm running- I would love to figure this out because having only modified fresh-air intake (SRT) and a running K&N air filter with the bully-dog 91 octane tune otherwise stock proposes some interesting questions on what my next mod should be*. I am thinking if I dyno I will see I am suffering from poor low-end torque. Toying with the idea of dropping the front driveshaft and putting it on the drums at a friend's shop. If I had upgraded the exhaust and relieved some back pressure I could anticipate this, but as far as I know my exhaust is still stock... Though it does sound louder than another Citadel I have listened to...
Here's my real question though- has anyone done one of the aftermarket supercharger kits and what was the before/after economy hit you took. Sadly being my daily driver, I am still doing the "trade-off" of a vehicle I like to drive -vs- cost to drive it daily...
