What is the best center drop distance for an 8WD?
 

Hi CD,

My team is strongly considering using an 8wd this year, and we know that we need to drop the inner wheels some amount. We'd like to know what drop distance has worked the best in the past.

For reference, we plan on using 6 in or 5 in Colson wheels that are 2in wide.

Thanks!

Re: What is the best center drop distance for an 8WD?
 

On 6wd .150 is standard I believe

Re: What is the best center drop distance for an 8WD?
 

I usually design 8wd with a 1/8" center drop.

Re: What is the best center drop distance for an 8WD?
 

I see the drop subject popping out quite bit this morning, are you actually making the center wheel lower than the ends one or higher where they don't actually touch the ground on a plane level?

Re: What is the best center drop distance for an 8WD?
 

I'm not exactly sure what the difference between those two options are. Could you explain?

Re: What is the best center drop distance for an 8WD?
 

Having th e center wheels closer to the ground shortens the effective wheel base. You want the center wheels closer to the ground to make turning easier.

Re: What is the best center drop distance for an 8WD?
 

Something else to consider is the spacing of the wheels horizontally. Most teams do not run the spacing equal between all the wheels.

Re: What is the best center drop distance for an 8WD?
 

Our team is going to try to build an 8wd today, does anyone know the best way to fit 2 6" wheels and 2 4" wheels on each side? Does anyone have any photos of any 8wd on the chassis kit included with KoP? Thx

Re: What is the best center drop distance for an 8WD?
 

Don't forget that you need different gear or sprocket sizes. If the wheels are in the ratio 4/6 then the ratios to those wheels has to follow the same ratio of 4/6.

If you have a 15:1 ratio from the motor to the 6" wheel you will need a 10:1 ratio from the motor to the 4" wheel.

Good luck.

Joe J.