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TimT TimT is offline
what? me worry?
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Join Date: Mar 2002
Location: Wantagh, NY
Posts: 7,456
Who has done it the DIY way and then gone to a good pro shop to check on how close the settings are?
I have.... in a matter of speaking.

We have a few cars that we do track prep for. Final prep is usually corner weight checks and alignments. The corner weights and alignment specs for the cars are logged and brought to the track.

During the test and tune sessions, driver comments and tire temp data are noted.. and alignment adjustments are made using toe plates, and Smart Camber tools. the adjustments are noted ( toe plates and the Smart tool are similar to "string lasers" method). This procedure is repeated until the driver is happy and tire wear/temps are good.

All changes are recorded.

Fast forward to prep for the next race.. the car is put on the alignment rack and the alignment settings are compared to what we thought we did according to our notes.

Generally our changes at the track are favorably displayed on our alignment rack. Meaning.. if we thought we reduced camber 1/2 deg the reading on the alignment rack confirms this.. Unless of course in the heat of the moment we made changes and didn't record them. or the car went agricultural for a bit

One thing someone doing DIY alignments should strive for is is a car that handles safely and predictably. Achieving that is well withing the realm of a savvy DIY'er with strings lasers or toe boards and levels.

If the car handles strangely and the tires show any odd wear.. recheck the settings, adjust as needed.


I remember going to some IMSA races at Lime Rock, Watkins Glen, etc in the mid '80s when Holbery/Lowenbrau 956/962s ,the Jaguar Group 44s, Nissan, Aston Martin and even Mazda were doing battle..

It was common to see a car being aligned using strings (piano wire) set up on turntables that were leveled using linoleum tile, and seeing those meaty slicks balanced with a bubble level.

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Last edited by TimT; 02-14-2007 at 03:32 PM..
Old 02-14-2007, 03:28 PM
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