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Author Topic:   Rear shock mount location
Hobbystocker
Dirt Full Roller

Total posts: 28
posted January 22, 2003 07:36 PM
We are currently building an IMCA Stock Car and we are puzzled as to where to mount the rear shocks. I need to know how much distance we need from the top mount to the bottom mount. Our shocks have 9inches of travel...do we want to make the travel even,(i.e.4 1/2 inches) or do we want the left rear to travel farther(rebound) than the right rear.And what angle do is the best to mount them...I've heard 10 degrees. Any info would be greatly appreciated!


c21
Dirt Freak

Total posts: 346
posted January 23, 2003 12:01 PM
a safe way to go is to mount the left leaving 4" of compression travel and the right leaving 5" of compression travel.

On a really highbanked track (where the left may compress instead of extend during cornering) you might want to center up the left shock (in it's travel).

10 degrees or less is good as it gives a better motion ratio to the shock than steeper angles.

c21

istock59
Dirt Freak

Total posts: 237
posted January 23, 2003 01:08 PM
I usually mount them up with 5" extended on each shock.

As far as location, IMCA rules dictate that the lower shock mount must be within 2" of where the stock mount would be. And attached to the control arm bracket on the backside of the rearend housing.

That rule alone pretty much dictates position. You can't stand them up too straight, as they will hit on the frame.

Make your bottom mount, then give yourself 1/2" between the shock body and frame. And you'll see where the top mount has to be located.

Hobbystocker
Dirt Full Roller

Total posts: 28
posted January 23, 2003 06:24 PM
Thanks for the info fellaz...I appreciate the input. The tracks we run are 3/8 mile semi banked clay ovals. We already have the bottom mounts on the rear end as we took it out of our old car. I figured some where around 5-5 1/2 inches of rebound on the left rear and an even 4 1/2 or 5 on the right. This is our 1st attempt at building an IMCA Stock car...we've had success in the past with Hobbystocks. I just wanted some differnt opinions on the matter.

Thanks a Bunch fellaz!

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