Scaling HELP !!!

[Dennis424C]

The car lifts the wheels straight and while it is in the air it falls over to the left side and drives to the left. The wheelstand is not 4-5 inches it's in feet. I understand the bars can adjust weight in the car but the 100# heavy is with the car neutral on the scales no preload. What I'm trying to find is at neutral preload what weights should I be looking for. I have checked the springs and suspension and everything moves freely. Tires are within 1/4 inch

[brett3533]

you might try putting the right spring on the left side and left on the right to see if it rolls right or stays the same It would be nice to get the rear weight as even as possible before any preload on the bars the set preload according to how the car is reacting

[Tom Goldman]

Dennis, before doing anything ,check the rear to see if it is straight in the car.
This can be done simply with a string and tape measure.
If the rear is straight, check the corner weights withe the drivers weight in the car .
Take all preload out of the bars ,both sides, and measure ride heights at all 4 corners .
If the height is not equal side to side ,both front and back start there.
If it is equal, look at the corner weights with no preload. ....dont get too carried away with ballasting the right rear, get it close to equal side to side ,but dont go overboard.
You should never need to add more than 50# preload with the bar to go straight.
Keep in mind most stock chassis cars will always have a little more weight on the L/F wheel due to engine / driver location ,as opposed to a full chassis car.
If the chassis is rolling while in the air staggering the rear shock rebound may help slow it down.
It sounds like you may have just a little more HP in it than a Stocker might have .
In that case you may want to consider adding an anti roll bar.
That will help keep it flat on a long ,high wheelie.

[Dick Butler]

? Is the car #100 lb heavy on the left rear wheel "with the driver or without?" I agree with others check for broken parts but if not then usually set the rear wts equal with the driver in the car. That will make it leave even. Some people try to guess the wt to add to the rear wheel and that often doesnt work.

[Bill Bogues]

On my 69 Nova stocker I run 30lb's more weight on the right rear than the left. This is with the car exactly like it runs down the track (driver in car, weight in , etc)

[Jeff Lee]

It apparently drove left before the 100#'s of preload (which is too much) so that's not the issue. As I said before, the first thing I'd do is check the spring perches, one could be crushed and it should be the right but check both. Then check square of rear end. Look for bent axle tube.
I speak from experience on these! That's why I got Calvert to make CM spring perches as even the boxed in MS perches can get smashed!

[Dennis424C]

It was 100#'s heavy on the left with no pre-load and me (driver) in it. I understand how the pre-load works and I am trying to get the scaling correct with the bars loose or no pre-load. I will check all the spring perch and mounts again but I think it just might be a weight issue. If all checks out I will add 30lbs to the right rear and report back. Thanks for the suggestions

[Lee Jordan (3223) A/S]

Are the rear brakes disk or drum? Make sure the brakes are in good shape or this could steer the car with the front in the air. Have someone film it from the rear and study the car that way too. I would also start with making sure the rear is square in the car.