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Author Topic:   OEM Spring Info
Hutch5375
Dirt Maniac

Total posts: 123
posted April 12, 2005 11:43 AM  
For a new class I'm going to run in I need "stock" springs. Does anyone know the stock wire diameter and free heights of the front and rear springs on a metric chassis?

Raceman17
Dirt Maniac

Total posts: 165
posted April 12, 2005 12:52 PM  
quote:
Originally posted by Hutch5375:
For a new class I'm going to run in I need "stock" springs. Does anyone know the stock wire diameter and free heights of the front and rear springs on a metric chassis?

I know for a fact the rear springs have different wire diameters for different models. I just pulled about 3 sets of rear springs out of a few of my spare cars this weekend. Just for grins I checked the spring rate of the rear stock springs and they ranged from 83 lb/in to 155 lb/in. If no one else post the wire size and free heights for you by this evening, I will get them for you. I have a few sets to stock springs floating around my shop.
Here's a simple word of advice for you. Your gonna need a big spring compressor to get those stock springs back in your cars.
Later


Hutch5375
Dirt Maniac

Total posts: 123
posted April 12, 2005 02:07 PM  
Thanks Raceman, I'm not looking forward to putting some stock springs back in the car. The rules say that the spring can't be moved while the car is jacked up so I'll be able to cut them a little...hopefully. Any suggestions for a starting free height?

Raceman17
Dirt Maniac

Total posts: 165
posted April 12, 2005 02:56 PM  
What size tires do you have on the car. My car has huge 235/75/15's on them which make the ride height like a fullsize pickup. But anyways, you wanna get that car down as much as possible. Your gonna have to cut alot off of those springs to get it to come down (im guess 3 to 4 coils) Its also gonna be a trial and error type of deal because of the different spring rate your gonna get by cutting so much off. Do you have a way to rate the spring? Maybe someone can help on that part. I've never fooled with "real stock" springs so I cant tell you to cut 3 coils off of it and run it. Later

Raceman17
Dirt Maniac

Total posts: 165
posted April 12, 2005 08:12 PM  
I have the following information for you.
I pulled out two front srpings from an 80's model cutlas the free heights of both of them were 15.5 inches. The diameter was .670 inches on one of them and .650 inches on the other.

I pulled two rear springs from a 79 monte carlo. The free height on both of these springs was 14.5 inches. The diameter of the coil wire was .515 inches on one and .509 inches on the other. I also had another rear spring from a reagal that had a height of 15 inches and a coil wire diameter of .530 inches. I hope this helped.
Later

Hutch5375
Dirt Maniac

Total posts: 123
posted April 13, 2005 05:10 AM  
Thanks a lot Raceman you've been a huge help!

Raceman17
Dirt Maniac

Total posts: 165
posted April 13, 2005 06:29 AM  
quote:
Originally posted by Hutch5375:
Thanks a lot Raceman you've been a huge help!

No problem, Thats what races do.
Later


wrenchnerd
Dirt Roller

Total posts: 16
posted April 13, 2005 05:27 PM  
any of you ever see a stock rear progressive rear coil. i pulled one out of a 84 monte a couple weeks ago, i have a set of stock appearing racing coils i wanna get rid of if your interested e-mail me.

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