[Dieselboy]

Hey guys, looking for some tips in general, just want to try pulling anything really to practice. Even trying to convince my friends to truck pulls.
I'm running a 6 speed manual.

 

[Cat_Rebel]

You could always go down to Wal-Mart & hook up a strap to some collage kids car & drag it across the parking lot. You'll get more weight in the car as more of em start to pile in to try to stop it! oke:

 

[mech2161]

It's not that easy to just try it with a 6spd. A stock or single disc clutch will not take the abuse. It's a big sum of money for a twin disc clutch to just try it.

 

[Cat_Rebel]

There is a kid around here that nuked his 6sp Superduty Clutch last year. He did okay this year, he didn't break it so I call that good!

 

[Dieselboy]

How does a sled pull work ?
How does it get harder to pull ?
And theres got to be a near stock class ?

 

[cowboy_dan]

How does a sled pull work ?
How does it get harder to pull ?
And theres got to be a near stock class ?

A sled pull is designed to see which combination of motor, gearing/tire size, tire tread, and weight yield the furthest pull.
These are general procedures I've seen at the pulls I've been to. They're not set in stone, and different organizations will have different procedures.
You tell what modification class you are in when you register, then go around to the pits. When your class is called, you weight as you are in line to make sure you haven't mis counted the weights. Your hitch height is also measured to make sure it isn't too high.
Depending on the class, they may make you prove you are within other rules while you are in line.

When it comes your turn to pull, you back up to the sled and let them drop the hook in your ring.
When the lights on the sled indicate OK and all the track flaggers are showing a green flag, roll forward to take up the slack in the chain.
Those with automatic or a multi stage clutch will want to build boost before they leave the line.
A standard trans with single disc clutch will want to slip as little as possible. Just get the sled moving with the clutch holding before you worry about anything else.
Once under way, hammer down. If the truck starts bouncing (axle wrap), let out of the fuel. Generally if it is going to bounce, it will do it in the first 150 feet before the sled has weighed down the rearend.
The flagger at the end of the track will wave a red flag when you are supposed to stop. Someone will probably signal you to backup so they can get the hook out of your ring. Once you are unhooked, watch for the signal to leave the track.

The sled is usually a modified semi-trailer. It will have a weight box on it that they add weight to for the more powerful classes.
On the rear of the sled is an axle or two that normally are on the ground.
On the front of the sled is a really huge slab of steel curved at the front that the sled sits on.
As the sled is pulled down the track, the rolling of the rear wheels drives a gearbox that pulls the weight box forward on the sled. This puts more and more weight on that big slab of steel, which has a lot more drag than the tires at the back. This makes it harder and harder to pull as you get further down the track. The speed of the weight box can usually be changed in the gearbox.
Sometimes, especially in the really high power classes, the sled will actuate some hydraulics and lift the tires off the ground. This puts the entire weight of the sled & box on the steel pad. Usually that will stop the pull. Unless you happen to drive "Double Overtime", in which case you continue on until you run out of track.

The classes vary in definition by the organization that is running the pull. Just tell them what you have and usually they'll translate into their terminology.

 

[coope3]

If I was you, I would not pull with a stock clutch. I've seen a few do and it was not good. Southbend makes a 450hp clutch for about a grand that will be good for driving and the occasional pull

 

[Dieselboy]

Ok thanks guys. Basically I'm looking at a new clutch, and Im debating on bucking up for a double disc or not. You see I dont plan on doing sled pulls every weekend, maybe 1 or 2 times a year. This is why I dont wanna buy the double disc

 

[Cat_Rebel]

A good South Bend clutch rated over what you want to do. It will cost a few more bucks but it will hold up!

 

[69W900A]

Call and talk to Peter at SBC and he'll set you up with whatever clutch best fits your needs. You are going to have to spend some money if you want it to last.

 

[mech2161]

If you mention pulling to Peter or Mansell they will not warranty the single disc.

 

[OldschoolPSD]

That thur double disc seems to be the hot ticket anyways, I keep getting my butt handed to me my manual tranny trucks...

 

[StrokerTurbo7.3]

If you mention pulling to Peter or Mansell they will not warranty the single disc.

so dont tell them haha..

I agree with your signature there OldSchoolPSD lol jk any Powerstroke will do for me. Just prefer the OBS

 

[OldschoolPSD]

Yeah I just like to talk smack... the new trucks are nice. Other than being ugly, overweight, and a PITA to work on, I really like 'em.

 

[StrokerTurbo7.3]

I dont see to many OBS around my area. When I do see one though they get stared at hard by me lol.

sorry for derailing the thread lol