Originally Posted by
DesertRat
Question: I have my TC6.1 working okay, not great (I did threaten to destroy the car a few weeks back but now it's not so bad) but I observed something quite strange. I own four cheap 1kg scales, and placing them on my granite floor with dead-nuts equal spring preload and ride height all around the car had two wheels reading nearly 90 grams more weight at rest than the other two...
this is a massive crossweight!
This doesn't strike me as normal. The car is not tweaked, accelerates straight and turns equally in both directions. It's just that the discrepency is huge! I am going to move the battery and such around to see if I can balance the car out but I wish I knew how it got to be so wrong to begin with.
On the upside, I did properly cut out my new body, always a crowd favorite that one.
I've got 4 scales as well, and use them to set my tweak regularly.
First thing you need to check is that the scales are all level. I know you said you're using a granite floor, but the scales themselves could be a bit off. It's doesn't take much to cause a 90 gram difference.
After all four scales are perfectly level, I use the spring collars to get the cross weights equal. I almost never have my collars set equal left to right, but I trust what my scales are telling me. The reason I think the collars aren't equal is because nothing is exactly equally from left to right. Things like a slight difference in spring length create this.