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Author Topic:   spring height
petordragon
Dirt Maniac

Total posts: 167
posted March 09, 2005 03:22 PM  
Going to be runing a metrick malibu in the bomber class. buying 1000 1200 front springs and 250 225 rear springs. Staying with sway bar on the front adjustable on drivers side. Starting out with 255/60's with 245/60 on lr. Can radius fenders for tire clearance. How do I decide how tall of springs to buy?

Steve Dupree
Dirt Freak

Total posts: 316
posted March 10, 2005 04:20 AM  
Hey there well once you decide what spring heights you want and really i think they will be 12" but then put the car on the grond and check all your ride heights on the corners of the frame behind the front wheel ans infront of the rear wheel. Then you can use water pump pulleys to adjust the ride height or spring height. Just cut the center and tack them on each side of the spring works real well. We us ehtem on front and rear because we arenot allowed weight jacks.

petordragon
Dirt Maniac

Total posts: 167
posted March 10, 2005 05:44 AM  
no weight jacks or spacers here.

o5racer
Dirt Freak

Total posts: 402
posted March 10, 2005 06:45 AM  
12 inch springs are too tall for the front of a metric. you need 11 inch springs or 9 1/2 with large spacers.
Nick

petordragon
Dirt Maniac

Total posts: 167
posted March 10, 2005 06:53 PM  
11" on front how about the rear?

o5racer
Dirt Freak

Total posts: 402
posted March 10, 2005 08:50 PM  
Do you have a minimum weight? On mine I run 11 inch springs with about 1 1/2 inch of spacer but I also have 400# of lead over the rear axle-3450# weight limit. For a metric with no lead 11 inch might be about right. Or go with 13 inch springs and trim them to length. on the front If your running a swaybar I would drop to something like a 900 or 1000 RF and a 800 or 900 LF. Mine runs 1100RF and 1000 LF.
Nick

petordragon
Dirt Maniac

Total posts: 167
posted March 11, 2005 10:48 AM  
must be stock apearing springs stock mounted shocks no weight jacks or spacers allowed. no added weight anywhere.

petordragon
Dirt Maniac

Total posts: 167
posted March 11, 2005 10:50 AM  
seen somewhere on here at one time or another that a pre-loaded sway bar can add as much as 200# of spring. Don't know if this was verified on scales or just looked like 200#. Does this sound about right?

o5racer
Dirt Freak

Total posts: 402
posted March 11, 2005 09:55 PM  
Preloading the bar can add alot of cross. depending on the bar size 200# could be possible. Only run as stiff of a bar as you need. Too big of a bar wont let the front end follow bumps as well.
Nick

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