Left side heavy

[jared1624]

you can try putting 1/2" wheel spacers in the lr and lf, it will take left side % out. prob not enough. scale with shocks unhooked, pull out an axle. Something is def going on, prob something simple that you are just over looking. good luck

[junebug]

Ya. I'm pulling my hair out over this thing. I tried 2 different sets of shocks and springs just o make make sure nothing was bent and no change. I can get the left down to about 55% but then I have low cross numbers.

what'd u change to drop the left side down to 55%...? no matter what the left side is u can get ur cross back up just by turning weight jacks....the left% and rear% are all that cannot be change by weight jacks

[powerslide]

are you sure you have the correct rearend housing and the rearend centered per BMS specs?

[7uptruckracer]

Rims Rims Rims.....We use different left and right side backspacing on Asphalt IMCA cars some are designed for 3"s all the way around some 2" on right 4" on left its good for 2% more left so check and see what the car is made for first. and check all your control arms and track widths compare it to the chassis centerline...If you need to scale it one wheel at a time

[JustAddDirt]

I am wondering if he has the numbers backwards.
wander if the left side is 51, and rear is the 56. that sounds more like it to me.
wander if the wrong buttons were selected on the scales.
If not I would say it needs 2" offsets on the left, and 4" on the right. that would help a bit, but it is a band-aid to the real problem.

[crateracer16]

I was hoping I had the numbers backwards so I just rolled the car back on the scales but sadly I do not. I have everything to bms specs as to the rear end.

[Bubstr]

I'm looking at this tread and wondering, what does the height of your weight change when it comes to dynamic forces? Simply put, Cars move, forces are applied and high weight transferred easier than low weight and low weight is harder to transfer. It's called Polar moments, for any that have had basic Physics. Physical laws don't change.

Someone said you only change weight front to back and side to side is by moving the weight to the other side or end of the car. That may be true sitting still, but what happens when your racing? I think sometimes we get away from the basics. The basics are a triangle of Force, Traction and Center of gravity location, including and especially height. This is true going forward or around a corner. You can have too much or too little of any of these three. The secret is balance. What do you guys think?

For any that would discount weight transfer, tell me how much the front of a Sprint car weighs during one of their wheelies? Or for that matter the left sides of a bicycling Modified? This is a case of too high of a center of gravity for the power and traction. There is your speed secret of the day. Balance of force to traction to center of gravity. It don't matter going forward or around the corner. You have the tools to increase or decrease any of these three to get that balance. If you get that balance right, your fine tuning bells and whistles will work much better.

[setup479point2]

Have you been racing this car this season , on heavy track ? If you have the only thing I can think could be part of your problem is mud in the front crossmember. We have had this with our 06 , shouldn't be more than 15 lbs. though. Also set your bars at the proper length and in neutral , and get brhind car and sight down outside edge of tires , left side should be even front to back. Do you have a bms dealer in your area? If so take it to them. Will be worth whatever it costs.

[let-r-eat]

Agree with Bubstr here. The contact patch must support the movement of weight no matter where it is located on the car.

[MM90]

What are the percentages on your other car that you say are good? With aluminum heads there is no way that you only have 51% rear unless somebody added a ton of bars to the front of the car.

[dirttrackrocker]

We aren't talking about moving weight. We are talking about static weight.

[mod557]

crateracer16 it is tell me your mail box is full and wont let me respond.

mod557

[7uptruckracer]

If its not rims check your control arms sometimes people run aftermarket that might move a wheel out or in, it would have to be packaged with different uppers for camber, but I still think rims may be your answer...

[crateracer16]

Mod557 it's clear now. The other car is 57 rear. 52 left and 49.5 cross on the same scales. I ran the car last night the way it was. No forward bite but the track was so bad we had to crawl through the corners because of the bumps. I do have a dealer close and I think I'll get it to them. I do have a 1" extended rf lower control arm but I also extended the top control arm to match. Thanks

[setup479point2]

If you have the other car sitting beside this one , get out your tape measure and start measuring, wheelbase, engine mid-plate to lower balljount , engine mid plate to center of rearend , outside of tire to engine center both sides , etc. . You should find your problem.