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Dragstrip and Launch Techniques Discussion 1/4 mile, 1/8 mile, launch discussions.

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Old 07-25-2012, 11:13 PM   #1
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Drag Alignment

Does anyone have a good drag alignment that they are using info would be appreciated.
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Old 07-26-2012, 12:36 AM   #2
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Yep. The objective is to lower the front tire contact patch while maxing out the rear tire contact patch.

Front
Caster is not adjustable from the factory
Camber -1 for a street driven car and maxed out negative -2.2 for a strip only car
Toe 0.00

Rear
Camber 0.00 and no more than -0.50
Toe IN 0.10 Total 0.20
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Old 07-26-2012, 01:01 AM   #3
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Yup what he said, I just did basically the same thing and dropped a couple tenths off my 60ft time.
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Old 07-26-2012, 08:05 AM   #4
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Thanks for the info much appreciated
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Old 07-26-2012, 07:29 PM   #5
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Why the toe in the rear? I would figure youd want the rear toe at 0 as well?
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Old 07-26-2012, 08:15 PM   #6
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Pete, why recommend negative camber at all for the back tires, just curious. I'm at +0.30 camber at ride height.
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Old 07-26-2012, 08:22 PM   #7
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Madman always suggested toe-in for front of 4th gens.
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Old 07-26-2012, 10:11 PM   #8
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I did do zero on mine for the rear toe.
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Old 07-27-2012, 01:12 AM   #9
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Quote:
Originally Posted by Rhino79 View Post
Why the toe in the rear? I would figure you'ld want the rear toe at 0 as well?
The 5th Gen Camaro 5 link is reasonably stable under load. There is some wheel splay under hard acceleration. The toe in helps control that as well as being stable well into triple digits.

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Pete, why recommend negative camber at all for the back tires, just curious. I'm at +0.30 camber at ride height.
I think +0.30 is great. Not all OE height 5th Gens can get there. I haven't seen a single OE hight 5th Gen that couldn't get to 0.00. Many that drag also lower. the -0.50 is for them. With our extended range camber eccentric bolts we add 1 degree of additional adjustment if needed, but I was trying to avoid any product related information in this thread .

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Madman always suggested toe-in for front of 4th gens.
We run more than 1 degree of toe out on road course cars with excellent high speed stability. 0.00 toe decreases rolling resistance. That is why we suggest maximum attainable negative front camber, even with skinnies. Every fraction of a second we can find.

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I did do zero on mine for the rear toe.
The total Toe is only 2/10ths of a degree. We know it will be more stable at high speeds and it should help control wheel splay in the 60'. That said, we are splitting hairs.
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Old 07-27-2012, 09:31 AM   #10
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We use a 1/16th of toe in on the rear to keep the car a lil more stable and not WALK at speed...We stand the rear tires up like a straight axle...
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Old 07-27-2012, 09:38 AM   #11
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Toe out for drag racing will wander a bit no?

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Old 07-27-2012, 12:02 PM   #12
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Toe out for drag racing will wander a bit no?

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In the front, no. In the rear, yes.
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Old 07-27-2012, 12:11 PM   #13
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As far as old school drag tech goes, what we try to achieve is the best alignment under the cars full load conditions. When you accelerate down the track, the rear end squats a bunch and the nose comes up a bunch. We set the alignment for the cars attitude.
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Old 07-27-2012, 12:13 PM   #14
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As far as old school drag tech goes, what we try to achieve is the best alignment under the cars full load conditions. When you accelerate down the track, the rear end squats a bunch and the nose comes up a bunch. We set the alignment for the cars attitude.
The more things change, the more they stay the same.
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Old 07-27-2012, 12:29 PM   #15
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Why the toe in the rear? I would figure youd want the rear toe at 0 as well?
When you get on the gas, it causes flex in the suspension / takes up any slack in the mount points and brings you to 0..

If you were at 0, you would have a little bit of toe out.
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Old 07-27-2012, 01:52 PM   #16
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The more things change, the more they stay the same.
You got it. But I have no experience with independant rears.

We jack the nose up 3" and set 1/16th toe (in or out I can't remember now, lol) We also add caster to help it center.
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