Volume X, Issue 7, Page 92

Check Out That Chassis


7/8/2008

I am working on a full tube chassis, 4-link door car. On the first shake down runs, the car went left at the launch. The car has been scaled and 4-wheel aligned. Rear tire pressure was 8 psi. I don't have the scale numbers but the alignment was set at 6 deg.,0 deg.camber,0 toe at approx.1 inch lift. If I recall the chassis was set up with 40 lbs heavy on the r/rear.

LeRoy Pierre

Leroy,

In most cases when the car goes to the left you have to much load on the right rear tire. I would take 1 flat of preload out of the top right bar and try it again (you will be lengthening the bar). Video the runs; this will help you figure out if it is the preload that is sending the car left. The next thing that is going to get you in Big trouble is 0 tow in? You need at least 1/8" of tow in just to make sure you have any under load at speed.

Scott Weney
President, S & W Race Cars
610-948-7303X111

Ask the Experts!!

Submit your tech question to Scott Weney here.

Do you want to subscribe to our FREE email newsletter?

Your Question may or may not be chosen to be published on this page.


You can also email Scott Weney at chassis@dragracingonline.com

 

Here's What's New!