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Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Suspension - Brakes - Steering> Design of a fully adjustable height suspension
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Topic Review (Newest First)
10-02-2019 09:18 PM
johnsongrass1 Better make the upper and lowers and trailing arms as long as possible to minimize the wheel movements.
10-02-2019 05:17 PM
lmsport Get a look at a late model Range Rover with the adjustable height, they rid and handle great at all settings, height change is a few inches, maybe 3-4"
10-02-2019 01:19 PM
cerial You pick a ride height for high speeds and set your ideal camber and pinion at that height. You set your steering linkage for this height also.
Then for low speeds using the height adjustment to clear items your tires will be slightly positive camber when raised. When lowered for parking the camber will be negative.
The use of a constant velocity U-joint and slip shaft will allow for the pinion angle changes.

Your tires remain at ideal camber a majority of the time at the high speed setting where they will see the most abuse. The amount of time from ideal is justified as it is temporary. Your not going to be driving around with the front raised or rockers lowered all the time.

As far as bolt in and types. That will depend on the model, space, and budget. Expect to do some fabrication even with a "bolt in" kit.
10-02-2019 12:00 PM
Mutt's37Buick
Design of a fully adjustable height suspension

I'm exploring the design of a fully fully adjustable height suspension.
By adjustable, I mean an air ride suspension that has a control on the dash that allows ride height to be adjusted by possibly 2 inches.
And I want to be able to drive at the different heights like available on models of Range Rover, Ford Expedition, Mercedes and Auti 8.
Aftermarket Air Ride seems focused on one height for driving and then lowering the car for parking.
My front syspension will be double A-arm and my rear suspension is still TBD (it will use a solid axle).
It seems obvious that upper and lower front control arms would need to be equal in length to prevent change in Camber.
Ideally the upper and lower control arms (links) on the rear suspension would have nearly equal length to prevent change Pinion Angle for rear axle.
1) Has anyone designed a fully adjustable ride height suspension and can you share pictures?
2) Does anyone know how production cars accomodate change in toe-in/out that seems inherant with height changes?
3) Does anyone know of an afermarket company that sells kits that would do what I'm looking for?
Thanks for your feedback and help

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