First Generation Firebird-L Mailing List
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Niklas,
I just found them a few days ago for a 69 as I need to have mine
aligned and none of the local shops have the numbers. Here are the
different numbers, all borrowed from www.pozziracing.com.
ALIGNMENT SPECS
David Pozzi's Specs
Caster 5 deg positive, or as much positive as you can achieve up to 5
deg, can use .5 deg more positive on the passenger side to compensate
for road crown.
Camber -.25 degee for mostly freeway driving, -.5 for street and
occasional hard cornering, -1 deg for street, Autocross, and Open Track.
you can use even more if tire temps show outside edge of tread is hotter
than inside. If the inner edges of tread show excessive wear, use less
neg camber. If you have not done the Guldstrand mod, you can add .25 to
.5 deg to the above camber settings.
Toe in, 1/16" per side.
Guldstrand recommends the following specs for a "touring car":
Caster: 3 - 4 degrees positive (+) PS = more, manual steer less.
Camber: 1/4 to 1/2 degrees negative (-)
With upper a-arm relocation Camber: 0 degrees
Toe-in: 0 - 1/8 inch
Guldstrand recomends for racing:
(assumes "Guldstrand mod" is done)
Caster 3 to 4 1/8 deg pos
Camber 1.5 to 2 deg neg
Toe in 1/8" out to 1/8" in (I would try 1/8" out first) more neg camber
= more toe out.
Herb Adams recomends these alignment specs for the street:
1 degree positive caster ( I would use 3.5 degrees if PS)
1 degree negative camber.
1/16" toe in
Stock factory alignment specs:
Caster +1/2 deg
Camber + 1/4 to 1/2 deg
Toe-in 1/8" to 1/4" (Radial tires need less toe-in, use 1/8" or less for
them)
IN ALL POWER STEERING EQUIPPED CASES, USE AS MUCH POSITIVE CASTER AS YOU
CAN ACHIEVE UP TO 5.5 DEGREES POSITIVE MAXIMUM. MORE CASTER HELPS TILT
THE WHEEL INWARD WHEN CORNERING, HELPS REDUCE BUMPSTEER BY LOWERING THE
TIE ROD ENDS. MANUAL STEER CARS WILL REQUIRE MORE EFFORT AT HIGH CASTER
SETTINGS, YOU MAY HAVE TO USE LESS.
Chris R.
69 Conv 350
69 Conv 350HO
First Generation Firebird-L Mailing List
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.
Hello
I'm searching for wheel alignment specs for a stock suspension but with
modern tyres. As I recall it was something about trying to achieve more
caster.
I've tried the FAQ's without any luck.
Has anyone got a link?
Thanks.
/Niklas
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