Rear Wheel Camber
Posted: Thu Jan 25, 2018 11:09 pm
Hi all,
After our second place finish last weekend, my son and I are already plotting our reven...er...comeback next year.
One question I had was with regard to the camber angle on the rear wheel. A lot of the tools out there seem to be set at 2.5 degrees negative camber, and that's approximately what we've used bent axle-wise the last two years.
However, I see a lot of folks who drill their holes angled at 3 degrees as well. This seems to also be an accepted angle.
On the one hand, there is a part of my engineering mind that says you want the least amount of camber possible that will still move the wheels out towards the heads of the axles and keep them there throughout the run, because the more evenly distributed the weight is across the axle the more efficient the system will be.
But 2.5 and 3 degrees seem to be the most commonly used angles. Is this because somewhere in there happens to be an optimal angle that balances the outward force with the bore tilt etc?
Maximum Velocity seems to have done an experiment way back when that showed a mild but statistically irrelevant gain as angle increased. I'd love to run experiments, but alas, I have no off season access to a track.
So, what do you like to run on your rears? Have you noticed any effect of different cambers on a 3 wheel RR configuration?
Andre
After our second place finish last weekend, my son and I are already plotting our reven...er...comeback next year.
One question I had was with regard to the camber angle on the rear wheel. A lot of the tools out there seem to be set at 2.5 degrees negative camber, and that's approximately what we've used bent axle-wise the last two years.
However, I see a lot of folks who drill their holes angled at 3 degrees as well. This seems to also be an accepted angle.
On the one hand, there is a part of my engineering mind that says you want the least amount of camber possible that will still move the wheels out towards the heads of the axles and keep them there throughout the run, because the more evenly distributed the weight is across the axle the more efficient the system will be.
But 2.5 and 3 degrees seem to be the most commonly used angles. Is this because somewhere in there happens to be an optimal angle that balances the outward force with the bore tilt etc?
Maximum Velocity seems to have done an experiment way back when that showed a mild but statistically irrelevant gain as angle increased. I'd love to run experiments, but alas, I have no off season access to a track.
So, what do you like to run on your rears? Have you noticed any effect of different cambers on a 3 wheel RR configuration?
Andre