The early TR-3's had zero caster and when under had braking this will cause
you to leap and wiggle over three lanes. Worth checking out. (yes, you want
more caster)
----- Original Message -----
From: "Bill Babcock" <BillB@bnj.com>
To: "'John Herrera'" <jherrera@fcc.cc.md.us>; <fot@autox.team.net>
Sent: Wednesday, April 03, 2002 1:00 PM
Subject: RE: Wandering TR3
> Ooh, a typical problem. People used to say my TR3 was twitchy at the end
> of the straight, just because it would occasionally jump ten feet in one
> direction or another. If you're in the lead with a bunch of expensive cars
> behind you it can be a real advantage.
>
> I mellowed my car out by softening the rear springs. a rear roll bar will
> also make the back wheels steer more, and that's another good reason for
> not having one.
>
> Triumphs all have a lot of bump steer, so that may be part of the problem,
> but not likely if your front springs are stiff enough (most TR3's don't
> bounce around that much).
>
> You have to do a lot of work to really get TR3s to handle and stop
> darting, most of which has been discussed at length. I suggest you search
> the archives
>
> You probably want a little toe in. Toe out will definitely make the car
> leap around, neutral is probably almost as bad. I don't remember what I
> used, but it seems like it was a fair amount--maybe 1/2" measured at the
> tires, front to back. I know that's kind of rough, should be in degrees
> and all that, but I use an aluminum bar with stands and right-angle ends
> to do my measuring. Sometimes just string. But I make up for it with a
> really cool Camber gauge.
>
> Hello All:
>
> I got the TR3 race car out of the falling down shed to move it to the
> "garage" shed so I can work on it for Mid-Ohio. Some mice are looking
> for their home. I drove the car on the road a little.
>
> The Darting Around Without Driver Input is worse than I remember it
> being. I have to constantly make steering corrections. The blue TR3
> feels like it's on
> rails compared to the race car.
>
> John Hornbostel, do you remember when this started or did it always do
> it?
>
> Is it bump steer? I am not aware of the darting being connected to
> hitting a bump, but it might be.
>
> Is there a fix or is it the kind of thing we just live with?
>
> It seems that it wasn't so bad in the driver's schools as it is on the
> road. adrenalin?
>
> The front suspnsion has lowered springs, Delrin bushings, and a 7/8"
> sway bar. I think it's stock otherwise. Could the lowering cause bump
> steer?
>
> The car had lots of toe-out when I got it. I set it for zero toe-in
> myself with a bar I got from Moss. It didn't seem to help much. I could
> have screwed it up.
> Any help would be greatly appreciated.
>
> John Herrera
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