PizzaDude

Thanks boomer.

If i understand correctly it is because not (all/any) TC is/are physically able to go below the 5mm minimum groundplay limit when using TC Rubber tires?!

Right?

Big Daddy Boomer

iTrader: (2)

The rule has been in place for as long as I can remember.

The diameter of Rubber tires does not change. Foam diameter does/will change.

L.Fairtrace

iTrader: (24)

I would also think that since rubber tire cars require a softer suspension the cars roll more hence need higher ride height to not scrape the track.

Yeti35

iTrader: (5)

There is no real changing of the diameter of the rubber tires persay, but ride height will change after you run a few rounds. This is due to the crush you put on the insert. I found this out the hard way the first year of IIC. I could not figure out why my ride height would change between rounds w/o me touching it and it was explained to me by one of the techs. So it made a lot more sense to me then. So I guess that would say you are creating more air gap with the more crush you put on the insert.

51

I can't imagine finding rooms for much cheaper than $89 on the weekend nights. I've stayed at the Fiesta while racing in Boulder City and their weekend rates are $149 for a sub par room. Thanks to the IIC crew for "hooking-up" a great flat rate for the racers.

See everyone in a few weeks!

futureal

Yea, like Brent said, the only cheaper rooms I've found near the strip are those little no name shack motels that you really don't want to be staying at anyway -- and even then, they are not much cheaper at all.

On the ride height issue. Foam tires are typically run at a smaller diameter, and as I understand it, because of the increased grip a higher ride height will raise the center of gravity and create a more dramatic weight transfer during cornering, which would result in a slower or ill-handling car (traction rolls, for example). Ideally in both foam and rubber racing, people tend to want to lower the car as much as possible to drop the CG to avoid this.

On the flip side, if you don't set a minimum CG you can face a few problems, not the least of which is that a dragging car chassis can obliterate the carpet. One loose screw on a car with 3mm ride height and you can end up with a tear all the way down the straight -- not good! But also, you do want to allow *some* side-to-side suspension action, otherwise we may as well be racing plywood with wheels attached to it. And of course there is the realism factor.

PizzaDude

Thanks for all the replies you guys.
Still....

It doesn't all add up for me.
The thing that amases me most is that you all are very experienced in RC races and don't have one solid answer (that usually indicates that a rule isn't a GOOD rule anymore....)

I'ld like to throw some replies back at you guys if you don't mind (no bashing! just healthy arguying)


Boomer: It seems further in the discussion that due to the inserts rubber does change!

Fairtrace: due to my personal experience, I can relate most to your explination...for now

Yeti: that would mean both, foam and rubber, change tire diameters, again why the difference
51: not tire related sounds like a sweet deal

Futureal: I'm with you on ALL accounts dude, for sure. But you also seem not to be able to tell why there is a difference between foam and rubber?!


Again all you guys thanks, still a mistery remains imo.
All input/comments/replies still very welcome!!!

luc

iTrader: (1)

From down under

I think you will find that a foam tyre will deflect less under compression than a rubber tyre. Obviously this is to protect the carpet.


If you put a rod between 2 foam tyres (through the axle holes) and rest a weight on it (i would suggest jaco purples as i believe thst is what most racers at this event use) and measure the amount that the tyre compresses i think you will find that the compression is very low.

Do the same with a set of rubber tyres and i think you will find that with a culmination of the air gap and inserts etc you will see a larger compression and hence a car that is lower. My 2 cents worth and something you can test yourself at home to try and work out the reason.

Regards

Luc

P.S> See you in Vegas !!!!

Big Daddy Boomer

iTrader: (2)

Pizza Dude,

I think this is a great idea for a thread to start with this subject in the title. You will get more feedback.

I hope you find a more suitable answer.

Boomer

Bobby Flack

/

Josh Hohnstein

iTrader: (3)

The rule is to simply keep cars from dragging on the carpet and putting holes in it.

Rubber cars run way softer suspension......so they need more ride height to stop them from dragging.

Yeti35

iTrader: (5)

I never said rubber changed diameter, what I said was you will have to check ride height in that you get crush on the insert which allows it so sit lower then when you started. If you have the wheel off the car I would bet it is not much different diameter wise then when you started, yes, it does wear but not like foams do.

Big Daddy Boomer

iTrader: (2)

Hey Everyone,
I wanted to bring this to the forefront again. I will post this again when we get to the next page.

The hotel has a line of people waiting for our rooms to free up so that they can sell them at the higher regular price.

Get your rooms now before the block closes.

There will be nothing that Scotty or myself can do after the block closes.

Pass this info to other racers who are going to attend.

If you are sharing a room email me at [email protected] and tell me who is in your room and the name that the reservation is under.

Thanks Boomer

***Re-post***
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As with previous years, the only prerequisite was that you have to stay at the host hotel. We were notified by the hotel this week that the hotel is "oversold" for our week. We have a block of rooms reserved for our race and is going to be closed on August 25th. Once the 25th comes, the South Point Hotel will take our unused rooms and release them to the people that have been over sold to. There will be no more rooms and you will not be allowed to race and there will be no refund.
People have been putting off getting the reservations. The time to do it is now. A lot of you do not have a reservation at the hotel. If you do not have a room at the hotel YOU WILL NOT RACE.

Call the South Point Hotel at 1-866-791-7626 or 702-796-7111 Book your reservations using the code IIC 2007

For us to be able to hold the IIC at the South Point Hotel we need to fill our block of rooms.

Please do not wait anymore. Make it easy on yourself, get your room and be able to enjoy our event to the fullest.

If you have already reserved your room at the hotel, Thank you


As always email me at [email protected] with questions and concerns.
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JCB

Ampdraw,

Will you be carrying TC5 parts??

Yeti35

iTrader: (5)

Shane will have a full line of parts, so you should have no worries about parts for a TC5.