I used to have this problem with my 1/12 until I came up with a different way of setting the side springs. Get the car built, without tires or the damper tubes and raise the side springs off the chassis. Put a droop block under the rear pod and a balance pin up front. Move your electronics around to get the chassis even on both sides, I use a ride height guage to make sure it is close. Then get the side springs where you want them. Now using the ride height guage again, set the side springs to get even height on both sides. Then connect damper tubes. Since I started setting my side springs this way, I have had even ride height on both sides of the car.

Does anyone know the Hudy tire OEM?
Can you tell me how the Hudy tires compare with the 571/572 Shimizu combo?

I'm racing on ETS carpet. Usually medium traction.

If I'm not mistaken, the Hudy tires are Ride. They will push compared to your 571/572.

Ride GR
Correct?

Hudy=Ride GR
Rumor says front insert in slightly different, but feels same to me

look for the tires to go "off" during the race, like 2 - 3 minutes in. A bad set gets squirrely mid race. They always feel good at the start or on short practice runs.

If its an xray, this was a known issue on the earlier cars. They all had a ride height difference.

I feel the gravity and ride gr tires are different. I run both and the gravity tires feel like they have a more plastic content feel. The 'Gr's are more grippy from the go. feels more like a rubber tire.
the plastic wheels are probably the same though.

When I see this condition on a 1/12th or 1/10th scale pan car, something in the front blocks are uneven. They needed to be shimmed or shaved flat so that they are equal. Do you have a difference in spacers or a ball stud not fully pressed in? Take the tires off the car, place the car with chassis sitting on a flat surface and measure the height of your front axles. They need to be equal distances above the flat plate.

If that doesn't solve it, double check the front springs. Sometimes one collapses more than the other - time for new springs.

Thanks Rick. Got to try your changes at race last weekend and put a lap on our local sponsored driver. He was using Sweep tires, but there is a reason why he's sponsored.

I reduced caster and camber, moved up oil in tubes from 10K to 20K, put 15K on the king pins, and added 35g of weight under front axle. The car was impossible to drive slow.

2 questions::
1. do you have any droop/rise in front end???
2. If you have glue on front tires where did you glue them?
idbdoug

What was the root cause on this?

I never knew. Im pretty sure it happened with all the different chassis materials.

Assuming all springs are equal (not collapsed etc) most of the time this is given by base plates tweak.