Weight Placement

Oct 4, 2014
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Is it better to balance the rear axles and need more steer if the front end is light or offset the weight to the DFW side of the car and need less steer? I've read both and wonder how much weight is really needed on the DFW. Will a light front end even need more steer?
 
I forgot to premise my question, eliminator style build. As above I find several posts along the lines of my question but most trail off into something else. Has anyone specifically researched balancing the rear weight then tuning vs hitting a target weight that the DFW should have and living with the imbalanced rears
 
I have found a small increase in speed in putting some more weight to the DFW side at the rear. It's not much. The most speed pick up is from getting the rear wheels-axles back as far as possible and getting the weight out to the sides rather than keeping the weight in the middle. It's a tough call still on getting more weight to the DFW side. It makes sense to get it there, but the results are mixed. Most of the friction comes from the DFW sliding down the rail so doing much to the rears won't get us much speed advantage until the DFW friction is worked on. The car will go only as fast as the DFW will allow it. My unlimited this month had bearings at the rears, but an 84 axle without bearings at the DFW site and it ran times identical to eliminators. The most promising speed is at the DFW problem. How to improve it? I don't know. I wish I did.
 
Some parameters seem to shift with the class, but I agree that there is no magic recipe as far as side-to-side weighting in the rears. I have had cars with large. rear weight imbalances and some where I worked to get the rears even - neither for sure gets you a fast or slow car. I never have the track time to really research it, but I wouldn't take the results of one or two cars as meaning much at all.