Drag Racing Discussions > Front Engine Dragsters

How to figure proper ackerman with a 2" offset front axle and FORWARD arms

(1/4) > >>

AF/434:
Hello folks I'm looking for someone who can help me figuring the correct ackerman for my first car with forward facing steering arms with a 2 inch leading king pin boss. I know how to do it with the arms facing rearward just not totaly sure facing the opposite way. Any help out there from you chassis builders???

rooman:
It works the same way no matter where the steering arms or king pins are. A straight line from the tie rod hole in the arm, through the center of the king pin should intersect with the centerline of the of the rear axle.

Roo

dreracecar:
I do it on my CAD program

I need the wheelbase each side, the front axle width @ kingpin centerline,and length of the arms.  With that I can give you the offset for the hole the heim bolts thru

rooman:
I do it with a string line.   As we are not turning corners at high speed that is more than close enough to get the wheels pointed right while steering around the pits. If you are steering a lot at high speed you have more problems than ackerman geometry.      ;D

Roo

fuel749:
It's more of a concern on street driven vehicles. You'll get some tire wear if you make a lot of tight turn offs, but your drag car will drive and handle just fine without it. Like Roo said, if you're steering the car that far at speed on the track you have bigger problems.

Navigation

[0] Message Index

[#] Next page