mileage difference

[Jackpine]

Originally Posted by bikerfuzz

lol;.:giggle Soooooo now your gonna throw a new one at me ... Highway tune.. ESPLAIN LUCY..LOL

It's simple really, and it's the kind of thing Bill really needs if he is to design "custom" tunes for you.

My truck driving is mostly on the highway, sometimes I pull a trailer and sometimes I don't. If I'm pulling a trailer, we often go up into the mountains (10,000+ feet) on twisty roads where the speed limit is around 25, but you can get away with 35. Otherwise, I'm on the highway going from here to maybe California and driving about 75 mph (65 with a trailer - trailer tires fall apart above 65).

So, I wanted tunes that would help me in these situations. Clearly, in highway driving, I don't have many starts and stops. But, I want to be able to pass someone quickly (on a 2-lane road at highway speeds) and, I'd like to get good fuel economy. You can see I'm not into "Drag Strip Power" here. I've NEVER done a 0-60 or 1/4 mile pull, and don't intend to.

This is what I told him. MOST people he tunes for want something different - lots of low end acceleration. I wanted 60-70mph acceleration, a much different setup.

So, he wrote tunes for me with those concepts in mind. I was able to see improved performance with both of them. It was not mind blowing performance, but enough to justify the tune. (Right after receiving my tow tune, I calculated on a 2,000+ mile trip that the increased economy ALMOST paid for the tune - a $60 tune, since I did the Evo to Gryphon conversion.)

Bottom line, if you want a "custom" tune, you have to explain in detail how you're planning to use the truck. I did this with a letter that I sent in with the programmer when it was converted. I even included pictures of my truck and trailer.

- Jack