I have a 03 SD ext cab, 8 ft bed 350 with the v10 ,3.73 gears, and 315 75 courser mxts. I was wondering if anyone else here has hooked theirs to a sled and how they did. I plan on getting a sct x3 here soon with some tunes from a local diesel shop ( Made close to over 100 horse over stock on a buddies 3v v10) . I am very knowledgeable with truck pulling help my buddy with his 78 BBC all the time .I plan on hanging weights for traction and to hopefully avoid the super duty hop. Let me know your experiences!

 

Is it a daily driver/work truck? If so I would not do it. If you have the money to play then by all means go have some fun! Don't personally believe the hp numbers but I'm just not a hearsay believer.

 

Hard to believe those 100 hp increases........never saw that with my SCT tuner.

 

You'll find a few pullers here on FTE, but most of them are down in the diesel forums.

I don't think you're likely to break anything at close to stock power levels. Which is exactly where you'll be at with that tuner, don't believe the hype. You can do some interesting things on a diesel engine with a tuner because of the forced induction and combustion cycle, gas engines are much less responsive to tuners. You may pick up a few horsepower and better shifting, but 100 horsepower you will not.

Have fun out there and post a video of your run!

 

Well when I get this tuner programed I'll ask him if he still has the dyno sheets. It is my daily but soon I'm getting my back up car . I won't pull it till next year . I saw another probably ly 99 or 00 v10 pull last night at my home town pull and he had plenty of power but holy crud he was hoping horribly , front end coming off the track he did not care haha. I just can't figure out what gear to run , 4 low locked in first, or shift to 2nd, or 4 hi 1 gear so I have plenty of room for speed and rpms.

 

With sleds. You need to get as much speed as possible ASAP before the sled starts putting a lot of weight on the rig. This is why you see the tractor pulls, tractors just flying at first. To get the speed up before sled pulls them down.

 

I know I just dont want to lock it in first in 4 low and run out of rpm and be the idiot that'd bouncing off the limiter when apperantly I have more power to give still.

 

Trial and error, try what you think will give you the best chance and modify from there.

 

i think if you lock in it first in 4 low you will run out of RPMs quick.
i would try first in 4 high.

 

I've never done it, but I wouldn't try and make rocket science out of it. Put the thing in drive and mash the pedal at the appropriate time. If you run out of revs in first it'll shift to second. If it bogs out the transmission will downshift.

I'd try 4 hi first and see how it goes.

 

Gonna depend on the sled but my son locks his in 3rd low range on a biting track and 4 low on a powder track. I ran out of power with a 6.7 using 1st high

 

That 2 valve V-10 turning 3.73 gears with 35" tires will disappoint you pulling a sled I think, the taller tires and highway gears are compounding you into a really high ratio (numerically lower). The V-10 loves to rev and some deeper gears will help to put those revs to work on the ground.
My EX is a dedicated tow rig (11k TT) and the change from 3.73 to 4.88 (with 35" tires) was like getting a new truck.

 

Yea I'll probably use 4 low and just give her hell. I'll for sure make up my mind after I get the tuner and see what it will actually do. Now how does everyone jeep their front ends from bouncing . I've seen so many other super duty that just hop horribly and I'm suprised the front end even held up.

 

I've never done anything like this but logic makes me think with your set up the best bet would be 4low and locked in second gear for the launch and as soon as it hit 4k RPM pop it up into drive (with overdrive on) and let the transmission do the rest of the shifting (I would bet you can do 50 mph fairly easily in 4low with your rig).
The front end hop you're referring to isn't actually the front end hopping but The rear axle power hopping from spring wrap, the F350 has a 4" block under the leaf springs and under heavy torque can wrap or twist the springs until the tires slip then everything pops back into place until the tires grab again and is repeated over and over again. Eliminating the spring blocks with larger bowed springs will help but ladder bars on the rear axel will pretty much eliminate it completely.

If it hops STOP! I've seen way too many guys try for the last few inches when it starts to hop and it always ends with broken parts regardless of the truck..... Very entertaining for us guys watching though.

 

Yea we will see I'm gonna go to a out of town pull and get a feel for it before my hometown pull. These pulls are not hillbilly with a light sled at all , we use the mighty mac that runs with ostpa and ntpa.