I did a reverse enginering, I put in the HP and 6600 LBS until I got my 0-60 time that I got from my Gtech. Came up with 450HP, with a 0-60 of 6.5 secs. Do that Hp number seam high?

http://www.060calculator.com/

 

6600 Pounds? My 99 F250 is over closer to 9000 and my sons 2000 F350 is higher than that.

 

You are at looking Gross, and that is 9K. Add the max load and you get around 9K

 

Based on 9K I have 500+ horsepower. Dont think thats right.

 

a 350 dually 4x4 may be close to 9000 lb,mine was about 8400 before topper and tools

 

there is no way your truck is 6600 lbs on the hoof. the last time i weighed mine with no one in the truck and about half of tank of fuel it was 7910. which then leads my to believe either you G-tech is off or the formula you are using is not correct

 

I wouldn't trust the calculator... It doesn't take into account for gear ratio or tire size.

 

read this, then do your own search.

http://www.automotive.com/2002/43/fo...ons/index.html

 

I was on the scales a few weeks ago at the dump and empty I was 8130lbs. Thats with me in it and I am 240lbs not much in the bed, maybe 150lbs max and my snow plow frame on the front, maybe another 175 or so. I am a crew cab 250 4wd short bed. So I would think that a dually would be pushing 9k very easily with a cap and or tools and tool boxes. That dually axle alone is a beast, not to mention the wheels and tires.

 

I promise you that 5500 curb weight is a mistake.

 

Your about 175rwhp short of 450 with your mods. Your weight is also a touch low. My cc 4x4 tips the scales at 8000lbs w/o a whole lot of tools in it.

 

[QUOTE=02GrayPowerStroke]read this, then do your own search.

http://www.automotive.com/2002/43/ford/f-250/reviews/summary-specifications/index.html[/QUOTE]

The truck listed on that page has to be a gasser due to the hp/ tq ratings.