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Need Autocross Alignment Suggestion

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Old May 31, 2007 | 03:02 PM
  #1  
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From: Warner-Vegas
Default Need Autocross Alignment Suggestion

I've read about the euro-spec alignment for the AP1. Is that good for the AP2 as well?

And what exactly is it? I haven't seen any exact specs, but only "round about" specs.

Looks like the following is pretty common.

Front Camber: -1
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Old May 31, 2007 | 03:46 PM
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From: weston
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we run max neg camber in front with 1/16 toe out and -1.4 per side in the back and 1/16 toe in
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Old Jun 1, 2007 | 04:59 AM
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ConeKiller2- is that alignment for street tires? When you say "max neg camber in front", what are you getting? 1/16 toe front and back, is it safe to assume that's per side? Or is that your total front toe and total rear toe? I think I could handle 1/8th total toe without sacrificing tire wear too much.

Anyone else have any suggestions? I'd like to get this done today if I can get in touch with my alignment guy.
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Old Jun 1, 2007 | 05:54 AM
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It seems like a lot of people here consider more rear toe-in to be more "aggressive". IMO, LESS rear toe-in is more aggressive.

If a large amount of rear toe is required for balance, I'd look at more front roll stiffness or less rear roll stiffness, or modified rear bump steer.

Unfortunately for me, I'm in a class that requires ALL stock suspension, except dampers. So I'm running .32deg L + .32deg R = .64deg total rear toe. I would much rather run a stiffer front bar and reduce rear toe.
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Old Jun 1, 2007 | 10:53 AM
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From: Warner-Vegas
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Any other suggestions? Looks like I won't be getting this done til tomorrow morning, so I have some time.
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Old Jun 1, 2007 | 11:02 AM
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From: weston
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YES THAT IS 1/16 PER SIDE. OUT IN THE FRONT AND IN IN THE REAR, AND ZDAN YOU ARE CORRECT, MORE TOE IN IS LESS OVERSTEAR LESS TOE IN OR TOE OUT IN THE REAR IS MORE OVERSTEER. THE FRONT TOE OUT MAKES THE CAR TURN IN A BIT QUICKER, BUT TOO MUCH TOE OUT WILL CAUSE SCRUBBING OF SPEED. ALSO THE MAX NEG CAMBER ON THE FRONT WE GOT ABOUT 1.6 PER SIDE AND STILL HAVE OVER 5.5 DEGREES OF CASTER.
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Old Jun 2, 2007 | 12:57 PM
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Well this is what I ended up with. If the weather is decent tomorrow I'm going to try it out at an autocross.

BTW: Just for grins I wanted to see what the max negative front camber was, and we had it at -2 on both sides with a little more room to work with. I opted to stay with -1 though. Maybe with some A6's I'll increase it, but for street tires this should do OK.

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