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Author Topic:   Ballast?
dirttrackcowboy
Dirt Roller

Total posts: 6
posted August 20, 2000 08:27 AM
Where do you put your lead? How much? For what track condition? Why there?
At the track I see alot of people put lead in alot of different places, and was wondering why people put it where they do?

jammin
Dirt Administrator

Total posts: 3279
posted August 20, 2000 08:57 AM UIN: 16262997
Here is the way I do it.....High and to the right is for a rollover type situation, this would work on a tacky track, will take away from the LR a little. But the LR is not needed as much on a heavy track. Low and to the right....never....works against the grain of the tire patch...Not helpful in most cases. Low and to the left...This would be a dry slick scenario where you wanted to keep your left side weight up and keep the left side of the car down (more bite). This would also take away some of the RR bite. High and to the left....this would let the car roll a little still, but will make the left come down sooner and bite well off of the turns.....mid dry slick condition. It wont take away quite as much RR bite as the previous.

Oh, forgot....well, the farther you mount the ballast behind the spring mounting points on the rear, the more weight you take off of the front. So, if you want to keep a car tight and steerable, then you would want to put it over or in front of the spring mounting points if possible.

These are what I use.....Someone else give it a wack.

jammin

[This message has been edited by jammin (edited August 20, 2000).]

RickP
Dirt Roller

Total posts: 17
posted August 23, 2000 08:03 AM
So what your saying is now if all of my weight is in front of the rear springs and it is tight, then moving the weight back behind the springs should both increase the rear % and loosen it up, and is this on corner entry?
If so, now what do I do, mount it low for a medium grip type situation?
RP-02BB

jammin
Dirt Administrator

Total posts: 3279
posted August 23, 2000 08:13 AM UIN: 16262997
If you move the ballast behind the springs on the car, it will take weight off of the front and make the car even tighter. On the medium situation, you would put the weight were you want the car to work and manipulate your panhard/jbar and other weights to make counter or accent what you have done.

This is what I do anyway....Seems to work pretty good.

Roll Steer
Dirt Roller

Total posts: 14
posted August 29, 2000 12:10 PM
Just one note on moving ballast....

If you are moving 40 to 50 lbs of lead around in the car, you are making a major change to the handling. If it doesn't, then look for suspension linkages that are bound up.

40 to 50lbs is approximately 2% of a 2250lb race car.

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