You can go about balancing the car 2 ways and it's accomplished by raising or lowering the individual corners of the car. Cross weight, what Jim is speaking of is to have the same percentage (50%) of weight: right front left rear/left front right rear. This is the most common way. Some racers of production street cars will set up the car a different way. (less common) If the drivers front is 52% of the total front weight they will set the rear to have 52% of the total rear weight. That way each side has the same percentage front to rear. This has to be done at race weight with the driver in the car, a typical gas load etc. Most set the car up with the gas tank almost empty so the car is best at the end of the race. For the street, cross weight is a better choice. My car is cross weight balanced but I'd like to try the side to side front rear percentage system one day. I need scales and a proper spring compressor first.

Les

 

not really but almost,, you want more weight in the right rear than you do in the left rear but the X of the car the weight must be the same or as close as you can get it
example left front 1000 lbs right rear is 900 lbs=1900#

then the right front could be 1050 and the left rear should be 850 =1900#

also first weigh the fronts both = 2050
both rear weight ==1750
the best would be fronts weight 950 each and rear weigh 950 each ,,this includes the driver's weight in the front seat. jim

 

This is a picture of the scales with me in the car before cross balancing, I don't remember how much gas. 54.4% on the front wheels and 43.6% on the rear. The stock weight distribution isn't bad at all compared to other cars.

Les

 

Looks good!

 

Jim your car looks great nice job

 

jim why do you want more weight in the right rear of the car as opposed to the left rear?

 

Because he is in the left-front... ish.

And the right-rear, if I'm not mistaken, is the one putting the power down 90% of the time.

 

left yes but almost dead center. and he has a wavetrac so the power is split between the 2 axles. thats why i was wondering if it was exclusivley driver weight related.

 

Don't forget the 80-pound right foot

 

Quote:
Originally Posted by 32krazy!
jim why do you want more weight in the right rear of the car as opposed to the left rear?



MY 200 lbs makes the right rear lighter,, anyway I'm not 100% sure but Rennteck is. they are going to be doing the balancing.
Don't forget when you balance the car you also add the drivers weight to the driver seat and then get the weight set in the rear, offsetting the drivers weight, so all four wheels could have a different amount of weight on them and still be balanced, when I get the car balanced We'll see what it does at the drag strip,will let you know.jim

 

i was thinking it was drivers weight. how do you plan to get 100 lbs to the right rear?

 

Good lord people! Picture in post 23 is with me in the drivers seat in stock configuration. Look at it. With a V-8 it will be different but the rear of the car isn't far off, it's the front that needs help. Balancing the car makes a difference in predictability, especially when your close to the edge so you can get there safer without crossing it. Post up the before and after weights Jim, I'd love to see them.

Les

 

thats what i was thinking les but wanted to know for sure. i knew the cross balancing was more for road racing but im always looking for an edge at the track

 

by adjusting the coilovers, you can change the weight around you may not get fron to rear or left to right the same and that is not the point... remember seeing cars at the drag strip with the left front tire in the air,, this car is not balanced but when both front leave the ground the same the car is perfect. jim

 

any advise on how to remove front springs??
specially if the lower control arm bolts wont break loose?