[DeTomaso] Any experience with Marino's offset control armbushings to increase caster?

Thu Apr 3 06:39:16 EDT 2014

haha, yes, that was implied :)

Thomas

2014-04-03 10:58, Tomas Gunnarsson skrev:
> You would have to change the knuckle too unless you want crazy camber.
> http://www.njstangers.org/attachments/forum/nj-stangers-lounge-67/8080d1372256075-carbage-camber.jpg
> :-D
> Tomas
>
> <-----Ursprungligt Meddelande----->
> 		*From: thomas [thomas at hax.se]*
> Sent: 2/4/2014 9:20:57 PM
> To: jderyke at aol.com
> Cc: kenn_green at yahoo.com;detomaso at poca.com
> Subject: Re: [DeTomaso] Any experience with Marino's offset control
> armbushings to increase caster?
>
> Marino's bushings are offset both upper and lower, in opposite
> directions naturally.
>
> What about shortening the upper A-arm and move the upper ball joint
> inwards to reduce the scrub radius?
>
> Would this mess up the front end geometry?
>
> Thomas
>
>  > 2 apr 2014 kl. 21:53 skrev jderyke at aol.com:
>  >
>  > With all the upper ball-joint shims on one side PLUS offset upper a-arm
>  > bushings, the total negative caster will be around -4.6 or so degrees.
>  > If you need more than that, also installing offset LOWER a-arm bushings
>  > (offset the other way) adds another couple of negative degrees. Having
>  > a machine shop mill about 0.080"-or-so off one side of the upper ball
>  > joint carrier can add yet another degree (you'll then need a new 0.080"
>  > thick shim). Once the bushings are in place, you can fine-tune the
>  > caster setting by moving upper ball-joint shims around. But remember-
>  > as caster goes up (negative), steering effort also goes up. Corvettes
>  > and other high-speed sports cars run a maximum of -7 degrees caster,
>  > but they also use power steering to lessen the resulting steering wheel
>  > load.
>  > Judy and I find that - 4.5 degrees is an excellent compromise in our
>  > '72L with 245-50 front tires over the maximum stock setting of about
>  > -2.6 degrees. And after everything is done, the front wheels will
>  > definitely need to be re-aligned. While this is going on, check front
>  > brake hose routing so no tire rubbing occurs, and that large tires do
>  > not contact the right side wiper shield at full-lock. I've had offset
>  > upper bushings in place so long on our car, I can't remember how it
>  > steered before.
>  >
>  > -----Original Message-----
>  > From: Ken Green <kenn_green at yahoo.com>
>  > To: cengles <cengles at cox.net>
>  > Cc: detomaso <detomaso at poca.com>
>  > Sent: Wed, Apr 2, 2014 12:30 pm
>  > Subject: Re: [DeTomaso] Any experience with Marino's offset control arm
>  > bushings to increase caster?
>  > Chuck,
>  > Marino said they only provide maybe one additional degree of
>  > caster. Did you do something more than just make one end thinner?
>  > Seems like you can only get maybe 1/8 inch (1/4 inch total) of
>  > shifting? I'm not sure what the separation between ball joints is, but
>  > that looks like less than 2 degrees of added caster?
>  > Ken
>  > From: "[1]cengles at cox.net" <[2]cengles at cox.net>
>  > To: [3]kenn_green at yahoo.com
>  > Cc: [4]detomaso at poca.com
>  > Sent: Wednesday, April 2, 2014 11:33 AM
>  > Subject: Re: [DeTomaso] Any experience with Marino's offset control arm
>  > bushings to increase caster?
>  > Dear Ken,
>  > 1) no experience with Marino's offset bushings
>  > 2) The offset homemade bushings I have provide 5 degrees
>  > of
>  > positive caster with major improvement in handling and high speed
>  > stability. Highly recommended
>  > 3) Marino is a good guy and a reliable, reputable vendor
>  > in my opinion.
>  > Go buy'em, Chuck Engles
>  >> On Wed, Apr 2, 2014 at 1:12 PM, Ken Green wrote:
>  >> Can anyone comment of the benefitA and durability ofA Marino's
>  > offset
>  > front control armA bushings?A
>  >>
>  >> Thanks,
>  >>
>  >> Ken
>  >>
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>  > References
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>  > 1. [9]mailto:DeTomaso at poca.com
>  > 2. [10]http://poca.com/mailman/listinfo/detomaso_poca.com
>  > 3. [11]mailto:DeTomaso at poca.com
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>  > References
>  >
>  > 1. mailto:cengles at cox.net
>  > 2. mailto:cengles at cox.net
>  > 3. mailto:kenn_green at yahoo.com
>  > 4. mailto:detomaso at poca.com
>  > 5. mailto:DeTomaso at poca.com
>  > 6. http://poca.com/mailman/listinfo/detomaso_poca.com
>  > 7. mailto:DeTomaso at poca.com
>  > 8. http://poca.com/mailman/listinfo/detomaso_poca.com
>  > 9. mailto:DeTomaso at poca.com?
>  > 10. http://poca.com/mailman/listinfo/detomaso_poca.com
>  > 11. mailto:DeTomaso at poca.com?
>  > 12. http://poca.com/mailman/listinfo/detomaso_poca.com
>  > 13. mailto:DeTomaso at poca.com
>  > 14. http://poca.com/mailman/listinfo/detomaso_poca.com
>  >
>  >
>  >
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