krnlpud

Hey guys, im going to make this short a sweet, just picked up a set of stance super sport+ coilovers (brand new) and i was wondering what you guys are running as far as a proper preload on the coils for a street/track day setup?

Or if you guys could post links to any sites or post with the info i am seeking.

Thanks

krnlpud

Does anyone know how much preload i should set on these? I want to install these this weekend so i kind of need to know how much preload for a street and track setup.

krnlpud

Well i just got off the phone with stance customer service and they said that there is no really preferred preload that they reckon, so they said to snug them up and then give them either a half of a turn or a whole turn and you are all set.

lOOkatme

iTrader: (19)

I snuged my coilovers with a few turns and set the height using the bottom adjustment. I don't have stance but it seems to do well.

krnlpud

Ya i did the same, snugged them up, gave them a few turns and then tomorrow i will slap them on and see how they ride.

eage8

iTrader: (9)

all prload does is give you less droop travel. if you have a bottom adjustment, just make the spring not loose. (aka, 0 preload)

krnlpud

Ya ive heard that as well, ive also heard not to give too much or else you loose spring travel and may give you a more stiff ride, BC racing has a video stating they recommend a 4mm preload which you snug the upper collar then bring up the locking collar and then tighten the top collar until you have a 4mm gap between the two collars.

lOOkatme

iTrader: (19)

I want some preload on the spring. The reason for it is when you raise and lower the car working on it, when you go to lower the car sometimes the top ring gets stuck and you get a nasty noise when you go driving again when it pops back into place when you turn the wheel.

Also, you don't want to go too low and be bottoming the shock, I would also guess that the shock probably operates a little better in the mid range stroke than the bottom of its stroke almost bouncing off the bump stop.

The spring will compress the same amount regardless of what position it is in, with some preload, If you were to ever catch some air, or bottom on a large pothole or something like that, preload keeps the entire upper spring/perch together, if there is no preload and the spring can move around, you can possibly slam all that stuff back together in the wrong position damaging come components. I did that with a set of skunk 2 coilovers on a honda. add some preload and adjust the height using the bottom of the shock.

krnlpud

Ya i installed them with some preload but my ride height measurements were a bit off and the car is sitting really high right now, but i was limited on time and space, so next weekend i will take it over to mu buddies house where he has a lift in his garage, and do to the final touches on the ride height, then its off to get a proper alignment.

eage8

iTrader: (9)

0 preload doesn't mean leave everything all loose.... you can easily have 0 preload and have the spring not move anywhere under droop.

also, these dampers have a seperate height adjustment (adjustable lower mounts) so you don't touch the spring perch while adjusting ride height.

and even if they didn't, a helper spring is designed to keep the springs and top hats aligned while at full droop.

krnlpud

Ya i was just thinking last night that if you tighten the collar on the bottom of the coil would be compressing the coil spring thus giving the spring less travel and making the ride a bit stiffer, thats why i think stance told me to just snug up the collars and then give them a one full turn and ur all good to go, because if too much it would be a bit bouncy even on the softest damper setting, and too loose the coils would clunk around because they not be under load. Thats my assumption on the whole preloading the coils, and yes my rears have the helper springs and the lower brackets are the ride height adjustments.

eage8

iTrader: (9)

preload won't make the ride any more bouncy or stiffer (if you don't preload it crazy amounts). when the car is sitting on the springs, preload won't matter, because the weight of the car compresses the springs the same amount. It literally only affects how much droop travel the dampers have, which you probably want as much as you can get...

krnlpud

Ya hopefully this weekend I get to use my brothers friends lift to make this easier on doing the final adjustments to the ride height and backing down the preload I set because its a bit to high and im going to just snug them up and give them one full turn and that's it, then lower it a bit pass the stock height, and then its just trial and error at the open track after the alignment to find out the perfect ride height for my comfort.