vehicle setup ride height vs. cross weight

Vehicle setup ride height vs. cross weight driver#

It's all about weight transfer in roll/cornering and therefore improved rear grip, even more so when combined with a front anti roll bar. LucksIt's not an exact art but very rewarding when you get it right. But I can say it's interesting watching the weights change - and frustrating to see some go out at some come in!! Importantly, the differents in the fronts has come down and the cross weight is near perfect.ĭon't know if this is interesting to anyone. Towards the end I was just getting confused and was woried that my heights were getting out too much. The factory set the normal ride height for me and with now changes this came in at:Īfter several hours of spinning platforms up or down a turn at a time I finally got to (with 100kg of lead as me) Now if you recall, after installing the uprated springs I was running high at the front and low at the rear, and the corner weights with me on board were:Ĭross Weight Percentage = 53.5% Wedge (LR,RF) I've always tended to use equal spring seat measurements as the starting point for corner weighting (followed by a check to equalise chassis ride height), but you'd be surprised how far out you can be when you then come to put the car on the scales. and joking aside, the chassis on specialist cars, particularly spaceframes, are seldom perfectly straight. Particularly if you're using fairly stiff spring rates for track use, you'd need pretty accurate measurements of spring seat distances even if everything else is perfect, 1mm of difference could easily give 10kg or more difference at the contact patch.

Vehicle setup ride height vs. cross weight driver#

Weight distribution within the chassis can be asymmetric (I've usually got 100kg's of fat b d driver sitting over on the right hand side and nothing to balance on the passenger seat, for a start!).Spring rates and uncompressed lengths of individual springs can vary by enough to have an influence, so unless you've got the facility to accurately measure and match springs to make sure they're equal.You don't need a corner weight gauge to set the spring seats to equal heights on both sides, and that's all it takes to achieve the correct weight distribution if your chassis is straight.Yeah, but you drive a TVR don't you? Seriously, though, even if the chassis is perfectly straight, trying to set weight distribution by setting equal spring seat heights is pretty iffy at best: