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Author Topic:   3 link tech
jklostermann
Dirt Forum Racer

Total posts: 88
posted February 22, 2002 12:52 PM
HOW DO SHORT/LONG BARS EFFECT THE CAR ON A 2 BAR CAR WITH A LIFT ARM? ALSO I'VE SEEN SOME CARS THAT SUCK THE LR WAY UP UNDER THE DRIVERS SEAT. HOW IS THIS DONE AND WHY??

A2KY2K88
Dirt Forum Racer

Total posts: 77
posted February 22, 2002 01:03 PM
They are using short bars on the left side and putting them in the top hole. When you accelerate, the left rear tries to drive up under the driver. It gives the LR more bite. BUT, it creates more roll steer also.

spde
Dirt Full Roller

Total posts: 63
posted February 22, 2002 08:42 PM
There is way more to this than it just the lenght of the bars. For one just by looking you cannt tell the wheel base or the lead in the rearend. With a car's wheels tucking under it usually means that you have alot of angle on the left link. Thus when the car rolls going into the corner the frame lifts and drops the tire under or towards the front of the car. At the same time the right tire goes towards the rear of the car. This action is caused from the roll of the car, not the acceleration of the car. This usually helps on a shorter track or a track with tight corners. Or a track that is dry slick!! With a lift bar in the mix it does effect the angles because the frame gets lifted, but i'm not sure to what effect.

A2KY2K88
Dirt Forum Racer

Total posts: 77
posted February 23, 2002 12:29 AM
Actually, the tire tucking up under the driver is caused by acceleration. As the tire gets bite, it walks forward, thrusting the chassis upward which plants the LR into the ground. It is also caused by body roll to the extent in which the body actually rolls.

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