IMCA Stock Car Rear Spring Height

[racing08]

Which length of spring is it best to run my car can handle up to 16" easily. Is it better to run like a 16" in the Lr with a shorter 13" or 11" spring in the RR or is it better to run equal lengths in both sides?

[fast_crew]

Doesn't really matter as long as you aren't bottoming out the spring, and can achieve proper ride heights. A taller spring has more distance between the coils and allows more travel before coil binding.

[stock car driver]

16 13

the lower the rr upper mount the more it will load onto the spring vs shear over it

Since everyone builds the mounts the same left to right the spring height is the way to fix it.