20" rims on the Dyno
#16
Great information Tony.
Do you happen to know the weights of those 3 wheels that you used in your test?
Here's a scenario I've always been interested in:
Let's assume Wheel A (tires included) is a 19" wheel that weighs 48 lbs. And Wheel B is a 17" wheel that weighs exactly the same. Both wheels have the same diameter (i.e. 26" tall). Would these 2 wheels have any differences in terms of performance?
.
Do you happen to know the weights of those 3 wheels that you used in your test?
Here's a scenario I've always been interested in:
Let's assume Wheel A (tires included) is a 19" wheel that weighs 48 lbs. And Wheel B is a 17" wheel that weighs exactly the same. Both wheels have the same diameter (i.e. 26" tall). Would these 2 wheels have any differences in terms of performance?
.
#17
If the material and width of the rims are identical then based on simple physics the outward force based on the same rotational speed would be greater with the 19" since more weight will be closer to the perimeter. The calculation I am no too sure of is when the weight is sprung how much more force is required for every additional lbs added to the wheels. There is definitely an impact but I'm curious whether that relationship is linear or exponential as rotational speed increases. Hope Tony can enlighten us on this matter By the way, I will be getting a dyno this week with my original wheels and will update you guys on this.
#18
Great information Tony.
Do you happen to know the weights of those 3 wheels that you used in your test?
Here's a scenario I've always been interested in:
Let's assume Wheel A (tires included) is a 19" wheel that weighs 48 lbs. And Wheel B is a 17" wheel that weighs exactly the same. Both wheels have the same diameter (i.e. 26" tall). Would these 2 wheels have any differences in terms of performance?
.
Do you happen to know the weights of those 3 wheels that you used in your test?
Here's a scenario I've always been interested in:
Let's assume Wheel A (tires included) is a 19" wheel that weighs 48 lbs. And Wheel B is a 17" wheel that weighs exactly the same. Both wheels have the same diameter (i.e. 26" tall). Would these 2 wheels have any differences in terms of performance?
.
But yes, the moment arm of the wheel makes a difference on the acceleration.
#19
So assuming that the 19 inch wheel and 17 inch wheel both weight the same and are both, for example, 26 inches tall... will the 17 inch wheel have any significant advantage over the 19 inch?
#21
#22
To add to Tony's answer. You can have the same exact weight and diameter but it really depends on the weight distribution from the center of the rim to the perimeter. If most of the weight is located at the hub then the impact would be less compared to if it were mainly on the tires, but chances are that the 17" will still be better since most of the weight on any rim is at the end.
#23
#25
#29
#30