Ready for front end alignment, questions? - Team Camaro Tech
Brakes, Suspension & Steering Conversion questions, Steering & Handling

 
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post #1 of 11 (permalink) Old Jun 30th, 06, 04:57 PM Thread Starter
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Ready for front end alignment, questions?

I am finally ready to take the car ( 68 coupe) in next week for front end alignment.
I called the place and ask them if they could do non standard alignment specs. they said YES but they would have their Master mechanic do it.

Car info ( All suspension and front end parts just replaced )
68 Coupe
BB 396
NEW Eaton 5 leaf multi
New Eaton Coil Springs ( Stock height, slightly stiffer PER Eaton and David Pozzi site)
New Poly Body bushings
New Poly rear spring bushings
CE Sub Frame connectors
New Moog Tie rod ends, Upper and Lower Control arm Bushings, Ball Joints, Everything front end , ETC
1 Inch Addco sway bar
BF Goodrich Radial TA's P215/65R15 front, P245/60R15 rear tires


Question:

1. From David Pozzi's site I'm thinking I do not want the alignment to be the GM standard spec's, What Alignment spec's info is recommended for this setup. I would like to print it out and hand it to them and say " align it to these spec's". Any help or recommendations would be appreciated.

2. I also should have them do a Thrust Angle alignment, Right?

Thanks
Ray
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post #2 of 11 (permalink) Old Jun 30th, 06, 06:42 PM
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Randy
 
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Re: Ready for front end alignment, questions?

Get as much caster as your stock arms will allow. Probably around 2 1/2 to 3 1/2 degrees. I'd start will 1/16 toe in and 1 deg of negative camber. The camber setting is fairly aggressive for the street, but should still give good tire wear. Any other opinions?

Randy
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post #3 of 11 (permalink) Old Jun 30th, 06, 07:06 PM
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Re: Ready for front end alignment, questions?

Quote:
Originally Posted by rlovell383
Get as much caster as your stock arms will allow. Probably around 2 1/2 to 3 1/2 degrees. I'd start will 1/16 toe in and 1 deg of negative camber. The camber setting is fairly aggressive for the street, but should still give good tire wear. Any other opinions?

Randy
I typed that exact same response, then hit back to wait for David or another suspension guru to respond.

Yes, those are the settings I use also, no problem, recommended.





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post #4 of 11 (permalink) Old Jul 1st, 06, 07:19 AM Thread Starter
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Re: Ready for front end alignment, questions?

Thanks guys,

I also would like to see what David Pozzi would recommend. This has been a long haul redoing the chassis and suspension and I would like to finish it off with the correct alignment. I know I want to give the shop some figures to work with, I know you've probably heard the same stuff from other shops, when I said it was a 68 there was a pause and then " I think our info should go back that far".

Thanks
Ray
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post #5 of 11 (permalink) Old Jul 1st, 06, 09:08 AM
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Re: Ready for front end alignment, questions?

I just finished my 67 and I have 3 degrees caster, .75 degree neg. camber on the left and 1 degree neg. on the right to offset the crown of the road. I started at .75 neg. on both wheels but it drifted slightly to the right on the freeway. An extra .25 on the right cured it.

ERIC
67 Convertible, 350CID, TKO600RR, 3.73 Eaton Posi
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post #6 of 11 (permalink) Old Jul 1st, 06, 09:18 AM
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Re: Ready for front end alignment, questions?

I had mine aligned to the specs listed in the linked thread. Handles much better than it did before, even though the previous alignment was fairly close to what I ended up with. Doesn't wander near as much as it did before, even with bias plys on it.

https://www.camaros.net/forums/showthread.php?t=83543

Mark Canning
1969 Indy Pace Car
350/300HP RPO Z11

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post #7 of 11 (permalink) Old Jul 1st, 06, 01:33 PM
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Re: Ready for front end alignment, questions?

Here's what Guldstrand and Herb Adams recommend:
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 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.

I like as much positive caster as possible, (around +3 deg, .25 deg more on the pass side is a good idea) .5 deg neg camber, go with 1 deg neg for hard cornering use. 1/8" toe in. More neg camber is OK but watch for tire wear on the inside edges if you do and less toe in is needed.

Check my web page for First Gen Camaro suspension info:
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post #8 of 11 (permalink) Old Jul 3rd, 06, 08:23 AM Thread Starter
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Re: Ready for front end alignment, questions?

Thanks David

That's the info I was looking for. I want to print this out and show it to the
alignment shop. I'm hoping they can tailor the alignment to the specs i want.
I'm looking at the end of this week to have it done. I'll post with results and how it works out.

Thanks again
Ray
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post #9 of 11 (permalink) Old Jul 3rd, 06, 04:40 PM
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Re: Ready for front end alignment, questions?

Have the tires at the same air pressure.
All fluids full, including gas tank.
All floor mats used in place.
Spare tire & jack in place, if used.
Battery in its future position, i.e., if up front and going to be in the trunk later, do it now.
Load car as if you were driving it, what would you have in it?

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post #10 of 11 (permalink) Old Jul 4th, 06, 05:26 PM Thread Starter
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Re: Ready for front end alignment, questions?

Hi Everett#2390

Thanks, I will fill the tank, and everything else is installed and in place. I'm assuming you mean when i have it aligned and NOT when I'm test driving it after.

thanks
Ray
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post #11 of 11 (permalink) Old Jul 5th, 06, 06:05 AM
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Re: Ready for front end alignment, questions?

Correct, load the car as if you were driving it.

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