Hello Jon,
Welcome to the FoT.
Thanks Joe, for linking me in to this topic.
I too would scan the archives for suspension information.
First and foremost, all TR3/4 suspension modifications involve switching to
TR4A/TR6 upper A-arms and 3 degree caster trunnion. I believe the early TR4s
had the 0 degree trunnion as did the TR2/3. Jon, if that's what is on your car,
it has to be changed.
Tony Drews documented this extensively on his website, tonydrews.com. Tony
changes everything to TR4A/TR6, including the upright. The through bolt
trunnion is one of the best aspects of this change. This trunnion makes further
adjustments and servicing much easier.
I used the RevingtonTR adjustable fulcrum pivot on my TR3. I thought it was a
good compromise to the cut and shut a-arm method and adjustable rod end type.
However, I do think that the adjustable rod end is the best way to go and that
is what Gary has fine tuned. I know that a few others have used the rod end
modification, including uncle jack.
The Revington TR fulcrum pin spaces the a-arms outward and I had a clearance
issue on the inner wheel well body work on my TR3. I trimmed the pin as much as
I could beyond the Nyloc nut fastener and tweaked the body work slightly. With
the outward spacing on the a-arms they use spacers on each side of the ball
joint. This can cause clearance problems between the a-arm and the wheel. I
experienced this on one side and made further adjustments.
I know a TR2 and a TR3 racer that use the Revington design, they race with
HMSA. Come to think of it, these guys should be in the FoT.
Dave H.
----- Original Message -----
From: N197TR4@cs.com
To: JGannaway@calstar.org, fot@autox.team.net
Sent: Saturday, March 9, 2013 8:35:38 AM
Subject: Re: [Fot] Neg. camber on 1964 tr4
Jon,
We (and several others) have sectioned the wishbones to shorten and adjust
to about 2.5 degrees, as I remember it. On the other end of the spectrum,
Gary Horskorta (in your neighborhood) developed fixturing to produce a fully
adjustable upper A-arm.
If you scroll to the bottom, you will see "Archive:
some information from there.
I dont know what Dave Hogye did, but whatever it was, it would be first
cabin. He might jump in on this The list seems a bit quiet right now with folks
getting ready for the season.
Welcome aboard to the FOT..
Hop on a plane with your son and join us at Road America in September. We
will be all paddocked together in what seems to be the best Kastner Cup we
have ever had. A lot of activities, track touring, notables from all over
North America, and about 10-15 Triumph guys from Europe and the U.K. Memorable.
Joe (A)
> I am preparing a 1964 tr4 to vintage race in California. I am looking for
> simple and easy ways to get negative camber in the car. Any suggestions
> would be helpful.
>
> Jon Gannaway
> 831-402-4080
>
>
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