well, basicaly today i went for a v8 super car expierance. and im toying with the idea of participating in something calld time attack up here at willow bank race way, (where they hold the qld 300 for v8 super cars) my ute has a issue where it slides all over the shop in normal driving conditions. so im thinking of a way im able to either: a) shift the weight more to the rear of the car. b) prevent body roll c) stop the rear end from sliding in corners. any sugestions ? it's a vs ute manual
Ok, here is how I would look at it and these are my options: 1. You can add weight in designated areas 2. You can alter centre of gravity transfer and loading of the outside tyre by playing with the rear swaybar 3. There is another I would try myself, but it is a bit weird sounding. First up, I would try adding some weight. Build a plywood 'chessboard' in the back, so you can pick which box you add weight to, whether it be the outer corners or the centre, thiat is the beauty of that set up, you can change it when you like. Also, you could try taking your swaybar right out of the rear, sounds silly, but when you corner hard, what does the swaybar do to the inside wheel? it picks it up, thus really loading the outer tyre. Or you might find that goes the wrong way, so a thicker bar may be in order. Not forgetting that the roll centre in the front affects this too. On that note too, some adjustable shocks in the rear may be of benefit too, to allow the rear tyres to get down quicker. The bit that sounds a bit weird is I would try making a bobweight on a pivot, so you use a light weight on a long lever that will follow the cars roll centre, but shifts a larger weight on the shorter side of the pivot. Sounds weird...forget about that bit. Let us know what you come up with. Cheers Nick
couple of those big detergent bottles [ the square ones, 10l? ] braced somehow in the back corners of the tray, filled with water should add a little to the situation, the trouble is by the time you've planted the back down with weights, your slowing your car down, so its not the most ideal solution...
I don't think that adding weight, even low down and to the rear, will be the best approach. Generally, less weight is better, even if the distribution is not ideal. To improve rear traction relative to the front I would try softer rear springs. The ute springs have to be able to deal with the weight of a load, so will be stiffer than ideal with an empty tray. Softer springs will sit lower so the total weight transferred under cornering loads will be less and the amount of roll won't be directly related to the relative softness of the springs. It's a live axle so the wheel angle aren't going to change so that won't be an effect at the rear. How much softer is going to be a calculated guess. I am assuming that not much money is to be spent so maybe start by looking at springs from sedan or wagon. The wagon may be more likely to fit. If it has FE2, try a standard front anti-roll bar as they are thicker than the FE2 ones (by 1mm). If it doesn't have FE2, try FE2 front springs for the same result ie. FE2 front springs with a standard front anti-roll bar.
