Tire Taping ?

[lincpimp]

Originally Posted by Arct1k

My understanding is:

Air has very little/nothing to do with ballooning at all... it is just the centripetal force of the rotating tire mass.

Venting the tire I'd understood was more about how the tire compresses on landing etc

Punching the tire on the outside vs the rim helps water/dirt get out

LPRs versus taping to avoid imbalance, rotating mass, uneven performance


Also I would note that generally racing is geared to I would say max 40mph ish depending on the track - I think the discussion here is for running at higher speeds and with tires you would never take to the track... just 2c

This all sounds good to me.

I will drop a few teeth on the pinion before I do much else and see how it does. I had smaller diameter mtr bowties on it before, and wanted a bit more speed so I geared up. The taller badlands with the previous 17t pinion should be about correct. I will still balance the wheels, as I and sure that they need it, and I need the experience!!!

[bruce750i]

Some of mine were way out of balance. Does your tires have that little tab thingy on the bead from the tire mold? I trimmed mine off. Anyways are not most pros all stuck with sponsors that have to much invested in nitro and nitro RC magazines ads to consider anything else, so they don't know of the power problems that plague us sparky guys.

[VintageMA]

One thing I had read somewhere about the issue of ballooning did mention drilling the vent holes in the plastic wheels to help with ballooning. Like you guys have said it doesn't make too much sense - but in some ways it also does.

If the air inside the tire is trapped and air can not get either in or out, then when the tire starts to expand it is is restricted to expansion with the limited volume amount of air in the tire - I think this would lead to a tire that balloons with a sharper edge from the center out (ie: a pie-cutter formation starts faster than if the whole tire could suck in air and expand more naturally with an increased internal volume).

I agree on the point of no venting will produce a bouncy landing impact (like a basketball hitting the ground - there will be no dampening response from the tire).

I would think that the venting process would be one where you would either put the hole in the wheel or the tire - not both.

As I have the same Badlands/Maximizers you guys have for my E-Revo - I can say one thing about the balancing that they were almost balanced when I put them one and maybe the foam has shifted around abit through tire flexing and ballooning, but they are much worse now after about 5 or so runs that when I first put everything together.

[bruce750i]

When they make a rc tire out of one rubber compound, It looses its form all thru-out the tire when the forces become great enough. but take a dragster tire tread in burnout it maintains a good contact path while expanding. Belting and tapping changes the tires rigidity to resit irregular expansion. IMO