I was wondering which setting gives the best fuel mileage?

MotoX

 

My 03 F-250 is stock except for the Predator and I have mine on the 60 HP setting. I am getting about 19 MPG. Mostly highway. I have tried all the settings and the mileage doesn't change that much. Since mine is stock I don't feel I get the full advantage of the 85 HP setting so I didn't leave it on there very long. I also only have about 3700 miles on the truck so far. All in all the 40 HP is probably the best with stock intake and exhaust.

 

I am probably going to go with the lowest setting and track it first then work my way up from there. I just didnt want to go through 3 tanks of gas to wait to find out. Any others results would be greatly appreciated.

MotoX

 

I notice power increases on every level. But with the 85 HP after about 3/4 throtle it only makes more smoke, not power. It is surely because of the stock intake and exhaust. After these upgrades I will play with the higher settings.

 

Are using an EGT gauge? Don't run the truck in 85HP with a stock intake/exhaust without one!

 

Ken, I have a stock exhaust on my truck w/ the Predator on the 40. I want to put the A pillar gauges on but don't think my downpipe is set-up for the thermo coupler. Do you know if stock downpipes have a plug in them, or should I just change downpipes??? Limited Budget!!!!!!
Thanks

 

Not to step on kens toes but i have your same truck and installed the tri pillar gauges on mine with stock exhaust. I got a clamp on type pyro and drilled a hole in the down pipe around 2 inches from the outlet of the turbo without removing the downpipe at all. It was a tight fit to get the drill in there but it can be done and still get a straight shot at it. The pyro install kits from autometer usually come with a weld on type fitting which is the best way to do it and clamp on setup all in one box. Hope this helps.

MotoX

 

Thanks Moto, that does help.. Needed to hear from someone that has done it..
Guess I know what's next now,

 

A stock downpipe would require you to tap into it and weld a nut in place for the probe.

 

FoMoCo136! or anyone!
Did you notice any shifting hesitations or mushyness on the 60 HP setting? Just curious? Or is anyone have any shifting problems with there predator?

MotoX

 

Anyone having mushyness with shift should call us about the middle of next week. Diablo has identified an issue with a small number of VDH related codes and an update to the Predator will be made available for those needing it.

 

Cool!
Thanks Ken! How is my speedo recal files coming for the 37,38`s?

Lee

 

I just bought the predator and have been using the 60 hp setting since I got it. I'm waiting until I can add gauges and a new downpipe before I try anything else. The increase in performance has been unreal.

Mileage-wise, I have been over 20 in almost all highway use since I installed the tune. I hit 23 last fill-up!

I have a manual trans so I haven't had any problems whatsoever.

Ken - is there anything more to the update? Should I send mine in for it pretty soon?

 

Hey Oppy...What part of Wisconsin you in?? I am up here around Stevens Point. It would be nice to hook up with some other SuperDuty Enthusiasts

Ed

 

Hiya Feexit -

I'm near Lake Mills, east of Madison. Check out the Club FTE Wisconsin Chapter for more Cheesehead stuff

We've been talking about having a meeting sometime in the near future. Let's set something up!!