Cutting coil springs - Chevelle Tech
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post #1 of 10 (permalink) Old Jul 17th, 19, 1:22 AM Thread Starter
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Jim
 
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Cutting coil springs

I have searched the site and cannot find the material I need. Does anyone recall how many coils to cutoff front springs to lower car 1 inch.
I read it a long time ago but didn't need it then.
I replaced the 307 with a big block and bought new springs. Car sets up about 2 inches too high in the front even after about 2 years.
Any help will be greatly appreciated.
Jim
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post #2 of 10 (permalink) Old Jul 17th, 19, 1:39 AM
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Re: Cutting coil springs

Quote:
Originally Posted by Sleeper '69 View Post
I have searched the site and cannot find the material I need. Does anyone recall how many coils to cutoff front springs to lower car 1 inch.

I read it a long time ago but didn't need it then.

I replaced the 307 with a big block and bought new springs. Car sets up about 2 inches too high in the front even after about 2 years.

Any help will be greatly appreciated.

Jim
1 at the spring is 2 at the body... cut 1" off the top...I think...

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post #3 of 10 (permalink) Old Jul 17th, 19, 2:33 AM
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Gary
 
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Re: Cutting coil springs

what springs did you put in
. what are you doing with the car? cutting springs raises the rate. not nec a bad thing but can be
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post #4 of 10 (permalink) Old Jul 17th, 19, 4:30 AM
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Shane
 
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Re: Cutting coil springs

Can you post pics?

I am looking to swap springs myself, would love to see what it looks like and what part number was used.

Also, have you tried increasing your tire size to take up some slack?


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post #5 of 10 (permalink) Old Jul 17th, 19, 7:38 AM
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Dan
 
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Re: Cutting coil springs

What spring did you put in that made it so high? Thats where i would sort of start. Do you like the spring rate on that spring? Like mentioned above, cutting that spring will firm it up some, and i thought at one point i saw a rough formula on that. So if you feel you have a harsh ride now with those springs, that will get worse. if its a nice soft ride, then maybe firming it up some wont be a horrible thing. There is a spring out there, that will do what you want it to, its just a matter of finding it, and i cant believe its not somewhere on this site, but im sure it requires a bit of digging to find a part number. Cutting springs can be trial and error work. And as we know, super fun to take in and out several times. From experience with this on my Camaro, i would invest in a proper spring compressor, rather than the floor jack method.

If you know what spring you have, so you can get the specs on it, uninstalled height, # rating, etc, you might be able to find a shorter spring with the same # rating, and get lucky, one would imagine a shorter spring with the same specs should just lower the car a proportionate amount, again, 1" shorter spring should put the body down 2".
This is probably the path i would go down, but i can be totally off base here.
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post #6 of 10 (permalink) Old Jul 17th, 19, 8:55 AM
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Re: Cutting coil springs

Quote:
Originally Posted by Peewee0413 View Post
1 at the spring is 2 at the body... cut 1" off the top...I think...

Sent from my SM-G965U using Tapatalk
Yes, 1" off spring height will lower about 2"
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post #7 of 10 (permalink) Old Jul 17th, 19, 1:13 PM
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Yes so if you want to drop the car 1inch you need to cut 1/2 off the spring !!
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post #8 of 10 (permalink) Old Jul 17th, 19, 1:40 PM
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Steve
 
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Re: Cutting coil springs

The best thing to do is cut a little at a time. It's a lot more work, but you can't put it back on. What stance are you looking to get? Spring rate does go up, but in my experience, even cutting a little off of stiff lowering springs, the car still rode very nice. Also, I'd like to add that when I switched from an aluminum headed small block to an iron headed big block with Hotchkis 1901 springs, the car sat almost the same, maybe a 1/4" lower. BB springs always seem to stick the front end in the clouds, even with a big block. Start with less than half of a coil to be safe.
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post #9 of 10 (permalink) Old Jul 17th, 19, 2:51 PM
 
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post #10 of 10 (permalink) Old Jul 18th, 19, 12:24 PM
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Dennis
 
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Re: Cutting coil springs

I have the lowest Hotchkis springs available in my 66 and it sits high due to the lightweight engine. I asked Hotchkis about cutting and they did not offer the “cut 1” to lower 2””. They said cut as little as possible, no more than a 1/4 coil at a time until you get where you want to be. Their theory being you can always cut more but you can’t add any back.
Which I guess works fine for Chevelle front springs but what about the rears? Doesn’t being tapered preclude cutting them?

66 Chevelle hardtop - LFX 3.6 liter V6/6L50 6 speed auto trans, 3.07 10 bolt, full Hotchkis suspension, Wilwood 4 wheel discs, white with red interior, cowl hood.
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