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-   -   Have you ever trimmed your coils ? (http://chevelleforum.net/showthread.php?t=565)

grumpy 03-02-2010 03:54 PM

Have you ever trimmed your coils ?
 
Trying to figure out how much coil to cut from my new Hotchkis 1" lower springs.

Seems most people trim them about 1/2 a coil. Wondering how much more this would lower it. 1-2 inches ?

Derek69SS 03-02-2010 04:03 PM

Do you have them installed yet? Ride height with Hotchkis springs seems to really be all over the place... some people end up too low (as if there is such thing :D ) and others end up sitting higher than it did with stock springs.

grumpy 03-02-2010 05:12 PM

I did not measure the old spring height but they sagged worse then Phyllis Dillar. The new lowered springs sit much higher but all the weights still not in the car yet.

From reading a lot of the hotchkis spring threads on TC, it seems the majority cut 1/2 a coil out. Just curious how much more that dropped it.

jacen33606 03-02-2010 06:49 PM

are you sure the coils are sitting correctly. I had a friend that had the same issue...he jacked it back up and twisted the coil and low and behold it wasn't sitting right...he lowered it back down and made a world of difference. It just seems weird to purchase 1" Drop Coils to then have to cut them.

Jacen

grumpy 03-03-2010 04:39 AM

Yup they are sitting correctly. The old springs were that bad.

Hank70SS 04-25-2010 06:23 PM

Wow, sounds like a major pain. Like Derek said, why do have to cut the coils off a lowering spring to get back to where you started?

Bullcrappy 06-26-2012 08:08 AM

First free spring height is no indicator of install height. you need to know load rate, spring rate and free height and you can figure installed height.

divide Spring rate into Load rate and then subtract that from free height = installed height.

see below.

http://i877.photobucket.com/albums/a...le/spring2.jpg

this is a list of oem spec springs and some others (moogs) if you know your front end weight you can replace the load rate with your cars front end weight and do math above and see if the that spring will raise or lower your car based on its weight.

Bullcrappy 06-26-2012 08:10 AM

Also spring rate is determined by number of coils and diameter of wire. cutting lowers them but makes them stiffer. i have heard 10% per inch but i don't know if that is per inch of coil cut off or inch of final height...

BBChevelle 06-26-2012 11:04 AM

I took 1 coil off my fronts and it dropped the front little over an inch. Haven't noticed a stiffer ride but I did notice a better stance. Well I take that back it tends to get stiff here and there when my headers drag. Lol

Fat fingered from the phone- Corey

Bullcrappy 06-26-2012 07:09 PM

also do not cut with a torch as it ruins the characteristics of the spring/metal.


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