How light should I go with wheels?

[1reason]

I took the standard BSA wheels and brought them down to about 1.8 grams. I did bring one down to about 1.5-1.6ish and ripped through.

I'm thinking there must be a sweet spot between taking so much material off that the tread bends too much causing a slow down and not enough and it's slower???

I'm doing this by hand, so I don't expect to get as low as a lathe

 

[bracketracer]

If you get the tread thin enough, run them inside out. You'll need to run spacers and recone what was the inner hub though.
Under 1.4g is attainable thinning the tread and sidewall. Do you have a way to check the balance or the trueness of your cut? You may be doing more damage than good if you don't have a way to check your work.

 

[1reason]

If you get the tread thin enough, run them inside out. You'll need to run spacers and recone what was the inner hub though.
Under 1.4g is attainable thinning the tread and sidewall. Do you have a way to check the balance or the trueness of your cut? You may be doing more damage than good if you don't have a way to check your work.

I have a magnetic balance check that is probably about as good as anything else I can imagine.

After playing around with it, I think I will leave the outside alone. The added questions etc.. is probably not worth the weight savings although maybe I should take the outside down and leave the inside so judges can confirm they are BSA wheels (or maybe they can either way, not sure)

Can a regular cub scout race is wheels inside out without violating rules against washers etc???

There isn't a rule that says the wheel must be on any given way, but I have no idea how to make it work. That said, if the wheels are canted 3 degrees, won't they push to the outside of the nail head anyway?

What's the difference between a "spacer" and a washer??? : 0 )

 

[Chump Change Racing]

Are you using a hand lathe?

 

[Guest]

If you get the tread thin enough, run them inside out. You'll need to run spacers and recone what was the inner hub though.
Under 1.4g is attainable thinning the tread and sidewall. Do you have a way to check the balance or the trueness of your cut? You may be doing more damage than good if you don't have a way to check your work.

I have a magnetic balance check that is probably about as good as anything else I can imagine.

After playing around with it, I think I will leave the outside alone. The added questions etc.. is probably not worth the weight savings although maybe I should take the outside down and leave the inside so judges can confirm they are BSA wheels (or maybe they can either way, not sure)

Can a regular cub scout race is wheels inside out without violating rules against washers etc???

There isn't a rule that says the wheel must be on any given way, but I have no idea how to make it work. That said, if the wheels are canted 3 degrees, won't they push to the outside of the nail head anyway?

What's the difference between a "spacer" and a washer??? : 0 )

I have wondered this:
Would not a washer/ spacer, cut from the pine block and glued to the car, fly with the judges?

 

[1reason]

If you get the tread thin enough, run them inside out. You'll need to run spacers and recone what was the inner hub though.
Under 1.4g is attainable thinning the tread and sidewall. Do you have a way to check the balance or the trueness of your cut? You may be doing more damage than good if you don't have a way to check your work.

I have a magnetic balance check that is probably about as good as anything else I can imagine.

After playing around with it, I think I will leave the outside alone. The added questions etc.. is probably not worth the weight savings although maybe I should take the outside down and leave the inside so judges can confirm they are BSA wheels (or maybe they can either way, not sure)

Can a regular cub scout race is wheels inside out without violating rules against washers etc???

There isn't a rule that says the wheel must be on any given way, but I have no idea how to make it work. That said, if the wheels are canted 3 degrees, won't they push to the outside of the nail head anyway?

What's the difference between a "spacer" and a washer??? : 0 )

I have wondered this:
Would not a washer/ spacer, cut from the pine block and glued to the car, fly with the judges?

I like the way you're thinking.

Anyone have a link to how to setup an inside/out wheel? I've searched assuming there would be a lot, but not finding any.

 

[1reason]

Are you using a hand lathe?

Oh no, only the most sophisticated NASA inspired high tech for my son's car.

To clarify how space aged this is, we have employed the power of the cheapest Harbor Freight drill press with a filed down screwdriver. Actually make that two screwdrivers, one for the sidewalls and one for the inside tread (we're not sparing any expense as you can tell)

 

[Guest]

HAHAHA! That is cool.

I wonder which is more important (concentricity or wheel weight), and I wonder where the tipping points are.

 

[bracketracer]

Are you using a hand lathe?

Oh no, only the most sophisticated NASA inspired high tech for my son's car.

To clarify how space aged this is, we have employed the power of the cheapest Harbor Freight drill press with a filed down screwdriver. Actually make that two screwdrivers, one for the sidewalls and one for the inside tread (we're not sparing any expense as you can tell)

Oh. My.

Well, as long as you're having fun, it's fine!

 

[jator359]

If you get the tread thin enough, run them inside out. You'll need to run spacers and recone what was the inner hub though.
Under 1.4g is attainable thinning the tread and sidewall. Do you have a way to check the balance or the trueness of your cut? You may be doing more damage than good if you don't have a way to check your work.

I have a magnetic balance check that is probably about as good as anything else I can imagine.

After playing around with it, I think I will leave the outside alone. The added questions etc.. is probably not worth the weight savings although maybe I should take the outside down and leave the inside so judges can confirm they are BSA wheels (or maybe they can either way, not sure)

Can a regular cub scout race is wheels inside out without violating rules against washers etc???

There isn't a rule that says the wheel must be on any given way, but I have no idea how to make it work. That said, if the wheels are canted 3 degrees, won't they push to the outside of the nail head anyway?

What's the difference between a "spacer" and a washer??? : 0 )

I have wondered this:
Would not a washer/ spacer, cut from the pine block and glued to the car, fly with the judges?

I like the way you're thinking.

Anyone have a link to how to setup an inside/out wheel? I've searched assuming there would be a lot, but not finding any.

Try this thread: http://www.pinewoodderbyonline.com/post/axles-for-street-pro-6362320?pid=1278182275&highlight=reversed+wheel#post1278182275

 

[Obsessedderbydad]

If you get the tread thin enough, run them inside out. You'll need to run spacers and recone what was the inner hub though.
Under 1.4g is attainable thinning the tread and sidewall. Do you have a way to check the balance or the trueness of your cut? You may be doing more damage than good if you don't have a way to check your work.

I have a magnetic balance check that is probably about as good as anything else I can imagine.

After playing around with it, I think I will leave the outside alone. The added questions etc.. is probably not worth the weight savings although maybe I should take the outside down and leave the inside so judges can confirm they are BSA wheels (or maybe they can either way, not sure)

Can a regular cub scout race is wheels inside out without violating rules against washers etc???

There isn't a rule that says the wheel must be on any given way, but I have no idea how to make it work. That said, if the wheels are canted 3 degrees, won't they push to the outside of the nail head anyway?

What's the difference between a "spacer" and a washer??? : 0 )

Sounds like we have the same rules and yes the rules would considered a washer a spacer. I looked into this year as I was going to run washers on the body for the hub to rub against rather than against the body. BUT, because there's some interpretation to the word "spacer" they took a washer as a spacer, even though it's purpose might be different. Are you doing these wheels for a pack race or mid america? Honestly I've never had to get the wheels that light for a pack race. We've used the Dynasty Rage and now Cheetah's and never had a problem.