The Most Important Caster Tips 

Put them in the bin. Fix your roll centre and spring rate

@@janeblogs324so why do all pro cars have sway bars then? They’re a useful tool for dialing grip

Thank you!

Didn’t say it was too much, just said the effects of caster are more dramatic on a McPherson strut so generally run a different value vs double wishbone

​@@FDFraceshop why/how is it different on a McPherson strut?

He talks about it at the end when he mentions rotating the knuckles. “Kingpin” as a term in alignments isn’t really relevant anymore as cars no longer have a kingpin.

In drifting the lead wheel is where all of our steering is coming from which is the inside tire (opposite to racing) so for drifting it’s positive gain on the critical tire, for racing it’s negative for the critical tire

@@FDFraceshopoh, so when describing the static setup do you call, what's normally referred to as negative camber, positive camber?

1. KPA is related to caster but also locates the scrub radius, etc. Really need to read a book to explain this properly. Usually KPA is fixed and caster is adjustable is short answer, and the long answer is pages and pages of physics and geomerty. Suspension is such a complex topic people devite their lives to just one aspect of it (geometery, shock valving, bushing design) for one purpose (racing, agressive street driving, drifting, high and low speed offroad, luxury ride, and towing to name a few). 2. Dampers should be matched to the springs. High rate/lowering springs need more damping and will blow oem shocks. Pick your spring rates, and then get your shocks valved to the springs. A non-adjustable damper works as well as an adjustable one if valved correctly and last longer if daily driving. I'd suggest some yellow bils if keeping under $3k on shocks. The value brand adjustable crap goes straight in the bin. Avoid twin-tube designs, they are commuter shitboxes. Be aware the spring rates depend on the geometry of the suspension, and you NEED to do the measurements and math before messing with anything, or risk having to swap springs a bunch to tune it. Check out QA1 for usa-made springs for a decent price. Nobody talks about these because they are deep and wide subjects appreciated by a small (but amazing) group of nerds. Welcome to the club. Some reading is in your future!

@@nobodynoone2500 first thanks for your answer What’s the name of these books and are they talking about drift specifically? And where can I find the guide lines for measuring the spring rate