We have road raced these same drums very hard for years and never had a
problem. You say you have had different wheels and tires on the car and the
problem remains. I am suspicious of them anyway. Are you running radials
in the back and bias plys on the front? Or anything else weird? Are they
new wheels and tires? Correct pressure? If everything else appears correct
you could take the drums in to a engine machine shop and have them balanced
like a crankshaft. You have no doubt checked tow in, caster and camber?
How about a steering dampener (available from the hot rod works if you don't
have one)? What is the condition of the king pins? The closer to the
center of the spindle that the out of balance occurs the less critical it
is. I recently put hydraulic brakes on a stock 1936 International truck.
For a while we ran radials on the front and the spokers with the original
bias plys in the back. It did some really strange things!! It would become
unstable at speed (more of a 'hula' than a shimmy). We put (used) radials
all the way around and the problem disappeared. Please let us all know what
you find out.
Boogie woogie is a catchy name, but you don't want it to be descriptive of
the handling.
Dave Seely
Sunny St. George Utah
1141 XF/VOT
----- Original Message -----
From: "Doug Anderson" <boogiewoogie12@hotmail.com>
To: <mdthom@radiks.net>
Cc: <land-speed@autox.team.net>
Sent: Friday, September 20, 2002 7:44 PM
Subject: Re: F100 break drums
> Thanks Dave. I've checked the shocks and they sure seem good...
(they're
> PRO brand from Speedway Motors)
>
> I'm thinkin' the problem will go away on its own as soon as I purchase new
> RADIALS for it!!! Thats the next step too! But it sure would be
beneficial
> ( for everyone who wants to learn something...) to find out WHY it does
it!
>
>
> Cheers, Dirt Track Doug in exile, in So-Newyawk
>
>
>
>
>
> From: "Marge and/or Dave Thomssen" <mdthom@radiks.net>
> Reply-To: "Marge and/or Dave Thomssen" <mdthom@radiks.net>
> To: "Land-speed Racers" <land-speed@autox.team.net>
> Subject: F100 break drums
> Date: Fri, 20 Sep 2002 17:36:00 -0500
>
> Doug
> How about your shock absorbers? Poor shocks sometimes will accentuate
road
> bumps into a vibration that seems like a tire out of balance.
> Dave the Hayseed
> Lincoln NE
> Where the Huskers football practice was called off yesterday by an anthrax
> scare. An unknown white substance was discovered on the field. The FBI
> identified it as the goal line.
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