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What's the principle of that we steer 20 degree to measure castor?
Caster (American spelling) turns into Camber when you turn the wheel. By turning it a known amount(20 degrees), and measuring the camber, we can calculate the castor (British spelling)
Can I just on this thread a bit ( sorry )
Can caster be worked out with just a camber gauge? I know about the 20 degrees turning, but in the practical demonstration a caster gauge is always used which works it out for you.
Is there an actual calculation that can be done in order to work out the caster?
Cheers
I think this equation will work:
Caster (deg) = (180 / 3.1415) * [(camber1 - camber2) / (turnangle1 - turnangle2)].
Here is another suggestion if you can zero your camber gauge:
Hi David, thanks for the reply, I have longacre camber gauge so I can zero it to carry out what is described on that website.
Where did you find that equation, looks complex!
I'm pretty sure I googled "calculate caster angle"....
Measuring caster at different angle due to restriction
when measuring caster on a race car , due to larger tires or lower ride height we may not get to 20 deg in/out to directly read the caster off of the gauge, what is formula/ratio to calculate the caster at 10 or 15 deg in/out , please let me know, kind regards Behr
See David's second post...
Don't forget to lock the brakes up to prevent the wheels rotating.
