# Ever wonder how your car's coil springs are made? Invest 44 seconds **URL:** \ **Category:** General Discussion\ **Created:** [August 23, 2024, 9:13pm UTC](https://community.cartalk.com/t/ever-wonder-how-your-cars-coil-springs-are-made-invest-44-seconds/195926 "2024-08-23T21:13:28Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![George\_San\_Jose1](https://avatars.discourse-cdn.com/v4/letter/g/e5b9ba/32.png) [@George\_San\_Jose1](https://community.cartalk.com/u/George_San_Jose1)\ **Post date:** [August 23, 2024, 9:13pm UTC](https://community.cartalk.com/t/ever-wonder-how-your-cars-coil-springs-are-made-invest-44-seconds/195926/1 "2024-08-23T21:13:29Z")
[![](https://global.discourse-cdn.com/cartalk/original/3X/d/9/d94b910dec0b3b35d9dbed57da943aef791cc9f9.jpeg "How Coil Springs Are Made - One Minute Mondays by EATON Detroit Spring") ](https://www.youtube.com/watch?v=IdLxAsuxp2w) ---
**Author:** ![Mustangman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/mustangman/32/44130_2.png) [@Mustangman](https://community.cartalk.com/u/Mustangman)\ **Post date:** [August 23, 2024, 9:47pm UTC](https://community.cartalk.com/t/ever-wonder-how-your-cars-coil-springs-are-made-invest-44-seconds/195926/2 "2024-08-23T21:47:11Z")
Simple cylindrical springs can be easily hot wound. Cold wound springs allow more features to be designed into the springs. Double pigtails, variable rates, camber and more. [![](https://global.discourse-cdn.com/cartalk/original/3X/2/f/2f237c379c48914e8c08579379b7de63ae9a9458.jpeg "Hot Wound Springs vs. Cold Wound Springs") ](https://www.youtube.com/watch?v=xNUlOm20Ww8) Strut cars have springs wound in a bit of a bananna shape to compensate for the bending forces from the car’s weight. Applying more force on the outside lowers the strut friction and makes a smoother ride. The bottom of the spring must be “clocked” in the correct position to do this. ---
**Author:** ![auto-owner](https://avatars.discourse-cdn.com/v4/letter/a/50afbb/32.png) [@auto-owner](https://community.cartalk.com/u/auto-owner)\ **Post date:** [August 24, 2024, 3:19am UTC](https://community.cartalk.com/t/ever-wonder-how-your-cars-coil-springs-are-made-invest-44-seconds/195926/3 "2024-08-24T03:19:48Z")
I find it kinda mind-boggling to ponder all the painstaking trial and error that has had to go into metallurgy; hardening techniques, alloys etc. Makes my head hurt. ---
**Author:** ![davesmopar](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/davesmopar/32/41750_2.png) [@davesmopar](https://community.cartalk.com/u/davesmopar)\ **Post date:** [August 24, 2024, 5:41am UTC](https://community.cartalk.com/t/ever-wonder-how-your-cars-coil-springs-are-made-invest-44-seconds/195926/4 "2024-08-24T05:41:44Z")
I just want to know how much trial and error went into the 1st in tank fuel pump…you know, electric spark, almost empty gas tank with lots of vapor still in it… Hold my Beer!! 💣 💥 👻 BTW: That was more of a joke then anything, I don’t need an answer… lol ---
**Author:** ![George\_San\_Jose1](https://avatars.discourse-cdn.com/v4/letter/g/e5b9ba/32.png) [@George\_San\_Jose1](https://community.cartalk.com/u/George_San_Jose1)\ **Post date:** [August 24, 2024, 8:53pm UTC](https://community.cartalk.com/t/ever-wonder-how-your-cars-coil-springs-are-made-invest-44-seconds/195926/5 "2024-08-24T20:53:41Z")
> [@auto-owner](#): > > Makes my head hurt. lol … I was headache free after watching the first vdo about spring manufacturing, seemed pretty straightforward, although not easy to make the manufacturing equipment. But at least theoretically, seems doable. I make my own smaller springs sometimes, for garden tools etc, and use a similar mandrel technique. Then Mustangman added a bunch of other variables that must be considered to make vehicle suspension springs , headache starting … lol . ---
**Author:** ![TwinTurbo](https://avatars.discourse-cdn.com/v4/letter/t/8baadc/32.png) [@TwinTurbo](https://community.cartalk.com/u/TwinTurbo)\ **Post date:** [August 25, 2024, 3:17pm UTC](https://community.cartalk.com/t/ever-wonder-how-your-cars-coil-springs-are-made-invest-44-seconds/195926/6 "2024-08-25T15:17:33Z")
Ah, the simple spring turns out to be not so simple after all. I recall not too long ago, working with a team of mechanical engineers trying to figure out the best design for a compression spring- have you considered compression fatigue? Not just cycle related but sitting under fractional compression for years… For grins, I found this vid to give a small peek behind the curtain…I suggest a prophylactic dose of an analgesic prior to watching 😀 [![](https://global.discourse-cdn.com/cartalk/original/3X/9/f/9f753218f8f6f94c5e5738d6efc6364af7474f60.jpeg "Compression Spring Fatigue") ](https://www.youtube.com/watch?v=iMVh86zKyAA) ---
**Author:** ![davesmopar](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/davesmopar/32/41750_2.png) [@davesmopar](https://community.cartalk.com/u/davesmopar)\ **Post date:** [August 25, 2024, 3:53pm UTC](https://community.cartalk.com/t/ever-wonder-how-your-cars-coil-springs-are-made-invest-44-seconds/195926/7 "2024-08-25T15:53:26Z")
And that is why I never did good in school, I would either have to get up and smack that guy for talking like that or I would have falling asleep before he finished his 1st sentence… 😬 I will try to watch it later… lol ---
**Author:** ![texases](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/texases/32/862_2.png) [@texases](https://community.cartalk.com/u/texases)\ **Post date:** [August 25, 2024, 4:00pm UTC](https://community.cartalk.com/t/ever-wonder-how-your-cars-coil-springs-are-made-invest-44-seconds/195926/8 "2024-08-25T16:00:11Z")
Another couple of things: that type of coil springs work like torsion springs, by twisting, not by bending. Also, those adjusters on a motorcycle’s rear shocks change ride height, they don’t make the springs stiffer. That’s built into the springs.