dj's eco tune

[jamstoyz]

just wanted to let you guys know. if you have the sct and dj's economy tune, it gets great mileage. been runnin it with 2 tanks now and what a difference. i cant tell you exactly what im gettin cause my speedo is way off from my big bolognas but just using my tripometer i can tell. with fuel being as high as it is just wanted give you guys this info. i know you dont get the same power as the other tunes but it aint that bad.

[bigd4x4]

Why don't you fix that speedo with a truspeed.

[jamstoyz]

[QUOTE=bigd4x4;332154]Why don't you fix that speedo with a truspeed

waiting on gears. either 4.88's or 5.13's

[06F-250-6.0]

it gave me great mpg as well....power is pretty good for a eco tune...

[bigd4x4]

[QUOTE=jamstoyz;332160]

Originally Posted by bigd4x4

Why don't you fix that speedo with a truspeed

waiting on gears. either 4.88's or 5.13's

That's the great thing about the truspeed. It will adjust for any tire/gear combo.

[tech10002]

Yeah, I second that. The old econo tune sucked as far as power, but the new eco tune is great. It feels like it's at least 70 HP or so, and now that I got my truck fixed (no thanks to the idiot Ford techs at my local dealer), I'm seeing over 20 MPG on the road.

[Dan"gerous"]

Does it have the cold fix?

[720Deere]

4.88s or 5.13s are too much gear for a 38" tire. I have 5.13s in a 550 and it shifts into O/D at 42 mph at WOT. It will only do about 68 mph. The 38" tire isn't that much bigger to make a big difference in those speeds. You would probably max out at 80 mph or less. The 4.56 gears would mach up perfectly with 38" tires.