Thank you for this Vance. This will go on my to-do (sometimes wish) list.
A good old fashion Merry Christmas to all.
Bruce Simms
----- Original Message ----
From: "Navarrette, Vance" <vance.navarrette@intel.com>
To: Bruce Simms <brucesimms2003@yahoo.ca>
Sent: Wednesday, December 19, 2007 10:20:09 AM
Subject: RE: f/up on sway bar thread
Bruce:
Either one will work, as they are both a reasonable size. I tend to be on
the conservative side as I have done many upgrades that I later found harsh or
objectionable for some reason. I had a Pontiac Fiero with a factory front bar
but no rear bar. I installed the rear bar (Addco recommended upgrading the
front bar at the same time, which I did not do) and found it to be very sweet
indeed. A friend who had a stock Fiero was amazed at the change in cornering
forces a simple change like that made.
Given your upgrades already, I would go with the 3/4" bar. If you find it
tends toward over steer you can remove it, or simply replace the stock front
with the Addco bar. My feeling is that it will be very close to neutral with
the 3/4". A car with a low center of gravity and neutral handling should
generate 1G of lateral force, so normally you run out of courage before the car
does.
If your suspension were stock, I would be inclined towards the 5/8" bar for
the TR4A, assuming it can be made to fit (it should as the differences are
minor indeed). Remember that you want 1/2 of your roll stiffness to come from
the springs, and 1/2 from the bar. Given your upgraded springs the larger bar
will probably be the one that works best. Get ready for an awesome change in
handling.
Vance
From: Bruce Simms [mailto:brucesimms2003@yahoo.ca]
Sent: December 18, 2007 2:27 PM
To: Navarrette, Vance; 6pack@autox.team.net
Subject: f/up on sway bar thread
Hi Vince: I'm following up on your detailed email to Bob Danielson re sway
bars. Surprised it didn't generate any responses.
Okay, the vendors advise upgrading front bar at same time you add a rear bar to
keep a balance, so I never got too ambitious about it. You're recommending
something different, add a rear bar and keep the stock front bar. Go for
neutral handling, but understand what that means. Addco has 3/4 bar for TR6
and TR250 and 5/8 bar for TR4A, not sure if Tr4A rear bar will fit the 6. I
have Spax adjustable up front, Munroe conversion in rear and TRF semi-comp
springs and poly bushes all round. Stock front bar. Recommendation for
rear bar?
Bruce Simms
73 TR6
Daily driver sometimes used for spirited fun.
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