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Old 01-16-2016, 10:19 AM   #1 (permalink)
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Transverse Leaf Springs ???

Just saw this article on Corvette Transverse Leaf Springs. The web page came up in a search for something else but it looked interesting so I read it. Not being a mechanic by any stretch of the imagination I have no clue exactly what it all meant, but I did wonder if anything like this could be adapted to any of our "eco-mobiles". Looks like they were stock on early model Corvettes possibly starting in '81. I'm sure there must be some out there in the local pick-and-pulls.

Thoughts?


C5/C6 Corvette Suspension Tech: Coilovers vs. Leafs - LSXTV

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Old 01-16-2016, 11:35 AM   #2 (permalink)
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Pretty sure Vettes had transverse leafs from 63 on when they went to irs. Ford started using them decades earlier and I'm sure they date back to buggys before cars.

How about a shock absorber that is the upper control arm?

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Old 01-16-2016, 06:28 PM   #3 (permalink)
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a.k.a. "strut"
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Old 01-16-2016, 07:05 PM   #4 (permalink)
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Was thinking AH ,MG midget, but a strut works as well.

LOL, beware the question you ask, it may have more answers than you thought!

What shocks did Ferrari use first?

Same type as a 37 Ford.

http://applehydraulicsonline.com/

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Old 01-16-2016, 08:02 PM   #5 (permalink)
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I've been obsessing over tall T's and the like lately and thinking about buggy sprung suspensions. Independent suspensions were developed when roads were terrible and feedback from ruts and bumps from one side of the car to the other was quite detrimental for comfort and control. Now, the roads I drive are for the most part quite good- lacking substantial surface flaws- and I'm not careening around at the near limits of control so I'm thinking independent suspension front or rear or front and rear is not really needed.

Why do away with independent suspension? Simplicity, weight, cost, room, etc.

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Old 01-16-2016, 08:41 PM   #6 (permalink)
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Quote:
Originally Posted by Frank Lee View Post
Now, the roads I drive are for the most part quite good- lacking substantial surface flaws- and I'm not careening around at the near limits of control so I'm thinking independent suspension front or rear or front and rear is not really needed.

Why do away with independent suspension? Simplicity, weight, cost, room, etc.
Maybe not quite the same thing, but I have a double live axle Wrangler and I can assure you it's a scary thing to drive compared my old Isuzu Amigo that was just about identical in layout but had double wishbone IFS (it had leafs rear vs coils on the Wrangler).

Most smaller cars don't have IRS anyway, they have torsion beams for exactly the reasons you've listed. There's no practical way to have a live axle on a front wheel drive either, at the front the single arm/strut has been settled on exactly for the reasons you've listed. Honda used to have double wishbones all around but have now had to go to the standard strut/ beam setups mostly on cost grounds.

I would like to own a Model-T at some stage though, preferably one that's been rebuild in period as a European style 'special'
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Old 01-16-2016, 09:11 PM   #7 (permalink)
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I remember reading about Tom Cahill testing a 46 Ford versus a 66 Ford. He thought the 46 handled way better.

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Old 01-17-2016, 12:52 PM   #8 (permalink)
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I had the thought of replacing the rear leafs on a small truck like my Ranger and adapting a transverse leaf parallel with the rear axle. If the one from the Vette's could be used or modified, at around 8-10 lbs, they would be a great weight reduction. I can only imagine what steel leafs weigh. That and losing two of them and replacing it with a single one.

You could theoretically move the rear wheels inward almost to the bed box on a step side like mine, though I'm not sure how it would track with the front and rear wheels being offset like that. Would make room for some interesting "boat-tail" rear body work.
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Old 01-17-2016, 04:37 PM   #9 (permalink)
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You are trying to use one transverse leaf.

Problem is there is no one point on the existing frame where you have enough strength to carry all the loads that are now handled by 4 mounting points. Once you redesign the frame for additional strength, add the wishbones to carry horizontal stresses, the transverse leaf can't handle, you have a lot of work for no real improvement.

Stick a ladder bar and a couple coil overs on it?

I would leave it alone.

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Old 01-17-2016, 05:06 PM   #10 (permalink)
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Quote:
Originally Posted by Frank Lee
I've been obsessing over tall T's and the like lately and thinking about buggy sprung suspensions. Independent suspensions were developed when roads were terrible and feedback from ruts and bumps from one side of the car to the other was quite detrimental for comfort and control.
I think it was the other way around. Ford's traverse leaf spring was paired with a wishbone, so the car was suspended at two points on the centerline which allowed large excursions at the wheel. As roads improved the car owners went to split wishbones to allow lowering, and eventually 4-bars, which reduced changes in caster. Eventually the twin I-beam, which reduced changes in camber.

Quote:
Originally Posted by oldtamiyaphile
There's no practical way to have a live axle on a front wheel drive either
DeDion axle. FYI The early 50s Dodge Routevan had a DeDion rear axle (for low loading height) in truck sized parts.

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