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We plan on running Hot Rod at the IHRA Nitro Jam and need to add weight to the car to meet the minimum weight of 2800 pounds. The car had been scaled previously and had the following weights with 175 pounds in the drivers seat.

765 LF 558 RF
553 LR 563 RR
2439 pounds total

Since then a second battery was added to the right rear and now the heads are being changed from steel to aluminum. So there is probably 25 pounds added to the rear and
50 pounds taken off the front.

So were do you typically add weight or were would you add around 200 pounds?

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So now you're at 2400 and want to go to 2800. The whole car is going to change. Your adding over 15% of the cars total weight. I would add it to the middle of the car low and to the right. The car is already heavy on the left by 200lbs. Adding 400 lbs to the ends of the car will make it less responsive to tuning changes. Good luck trying to secure 400lbs safely and legal to boot.
Doug

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I have a freind who runs a very fast 10.5 tire car that has to add weight to make the minimum, they add it in the middle also right at the center of gravity and move it forward or back as needed for the track conditions That is a very short wheelbase rascal your working on so 1 or 2 inches of weight location can make a bunch of difference on how the car works