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For those who have built Haynes Roadsters with the Vodou mods for Miata, what spring rates did you end up with? Are you happy with what you've got?

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Locost builder and adventurer, and founder (but no longer owner) of Kinetic Vehicles

I'm giving my question a bump. I wish when I was setting up my customer data base, I'd made a field to describe what cars y'all were building. But I didn't, so if you're thinking "Why is Jack asking this, he's the guy that sold me my shocks, doesn't he already know?" it because I don't know if youdo the vodou.

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Locost builder and adventurer, and founder (but no longer owner) of Kinetic Vehicles

There is a difference between Vodou and 442 chassis, regarding spring rates?
Soon I will need a set as well.

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Tibor


'20 Alfa Romeo Stelvio daily
Locost/442E in progress

Vodou has control arm and suspension attachment points for the chassis, but not coilover mounting angle. Upper attachment on the chassis is not included (except for the rear box) and would vary with the builder.

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Miata UBJ: ES-2074R('70s maz pickup)
Ford IFS viewtopic.php?f=5&t=13225&p=134742
Simple Spring select viewtopic.php?f=5&t=11815
LxWxHt
360LA 442E: 134.5x46x15
Lotus7:115x39x7.25
Tiger Avon:114x40x13.3-12.6
Champion/Book:114x42x11
Gibbs/Haynes:122x42x14
VoDou:113x44x14
McSorley 442:122x46x14
Collins 241:127x46x12

Jack, not sure what you’re after or if my car fits your relevancy. The frame is my own brew, but does have a Miata drivetrain (and Miata rear geometry). I believe the overall weight to be in the 1350lb range with approximately 55% rear percentage. I run 450 front springs (.71 motion ratio) and 700 rear (.68 motion ratio). No sway bars. Car is reasonably flat in pitch/roll with decently sticky tires. For a street car I’m quite happy. Ride is firm but not harsh. If I were to turn it into a track car I could see bumping the rates up ~30%.

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Peace, Ron