Downriver Thunder did you put premium gas in it and try the performance tune yet? You will smoke the tires then.

 

I had a half tank of 87 octane, put the performance tune on, added a bottle of octane boost then went and filled up with 92 octane.

 

I seemed to be getting a bit worse mileage with the performance tune so I installed the Mileage XS program this morning and will fill it up & try it again. The truck really woke up when I installed the performance tune and seems to act the same with the Mileage XS tune. I would suggest to anyone who has a sluggish 5.4 to try and get the computer reprogrammed first, you may not need a tuner.

 

What do you mean by that? Can my dad do it with his Snap On Solus scanner? I want to get a tuner with my tax return....just not sure which one to go with (thinkin Edge or Gryphon that I seen on this site). My truck is a 04' F250 Superduty 5.4....gonna have a Magnaflow exhaust very soon too. I want a tuner that compensates for mods such as cold air intake, headers, throttle bodies, exhaust, so on.

 

Did you have your PCM re-flashed at the dealership before you installed your new Superchips Flashpaq tuner? If so, what did they charge you for the re-flash?

 

No, didn't have it reflashed at the dealer. I had nothing to do with the purchase of this truck, if I had, I wouldn't have this truck. It would be a PSD.

 

Then I'm confussed... why did you make this comment?

 

I am confused about the comment and what does PSD mean?? I am still new here....so be easy on me. I am not up to snuff with all the abbreviations! LOL

Oh an please lead me in the right direction on which tuner to buy for my truck. Thanks guys.

 

PSD = Power Stroke Diesel. Welcome to the FTE forum!

 

AH....it makes sense now!! LOL I feel retarted now.

 

I only get about 70% of the abbreviations... but I'm learning!

 

he didnt buy the truck if I remember rt...its a company truck bc they got rid of his ex

 

That's right Patrick. I think my whole problem was a faulty programmed computer. I used the Superchips to put in the mileage program and it still runs as good as the performance tune. That's why I said it you're having sluggish issues then have it reflashed, cheaper than a tuner and it might fix it.

 

for a '05+ 5.4, what kind of power increase can you expect with a good tuner? Can it get into V10 like power/tq?

 

I wish that I could answer that question. I don't believe that my SCT Livewire on the custom performance tune (93-octane) is reaching V10 performance levels. I need to make a road trip to 5 Star Tuning and put the truck on the dyno to verify the HP/TQ increases.