Originally Posted by
good-win-racing
Alignment
Depends on what you want to do with your Mazda Miata, Mazda MX5, Mazda RX7, Mazda RX8, Mazda 3 and Mazda 6. For race track driving and more aggressive street driving try a bit more negative camber. For performance street driving we like the front camber ranges from -1.0 to -2.0 depending on conditions, tire choice, etc.
Autocross. Autocross is not reality and ideal autocross alignments are not ideal street alignments. Much depends on your choice of tires, shock absorbers, etc. Tire life may suffer and you assume the risk if you try these settings and ruin a set of tires!!. For Autocross consider considerably more negative camber. We find the following works well on our Autocross Mazda Miata:
Front camber -2
Front toe zero to POSITIVE 1/8 (within factory range) Caster--As much positive as you can get with the above settings.
Rear camber -3
Rear toe zero to NEGATIVE 1/8 (within factory range)
The camber curve of the rear link suspension on the Mazda RX8 and 2006+ Mazda Miata is better and needs less negative camber (we run ranges of 1.8 to 2.2 typically).