uneven drop springs

[14.5 drift]

why do most spring sets come with uneven drop rates? Alot of spring sets/all spring set come with the front springs lowering the front more than the rear. Me? I would rather see it sit even across the ground with out any tilt. Is there any particular reasoning behind this?

 

[jtmcinder]

One reason for this is the difference in the bump-camber curves. The rear gains camber when lowered much faster than the front. Combine this with the spec alignments (which has zero front toe, but some rear toe in) and a car with the butt down, no camber kit, and a spec alignment will eat rear tires. So, one solution is to not lower the rear as much.

The other reason is much more subtle. Having a 2G in what I call "stink-bug" mode (i.e., the tail up) makes the car handle a bit better. In particular, having the front roll center lower than the rear makes it so the car turns in well and then breaks the tail a bit freer mid-corner, so you get more power down on corner exit.

- Jtoby