R/C Tech Forums

Go Back   R/C Tech Forums > General Forums > Electric On-Road

Reply
 
Thread Tools Search this Thread
Old 08-19-2007, 04:13 PM   #841
Tech Master
 
PizzaDude's Avatar
 
Join Date: Nov 2002
Location: Parts Unkown
Posts: 1,044
Default

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?
PizzaDude is offline   Reply With Quote
Old 08-19-2007, 04:28 PM   #842
Tech Elite
 
Big Daddy Boomer's Avatar
R/C Tech Charter Subscriber
 
Join Date: Aug 2002
Location: Trackside Hobbies Milwaukee
Posts: 2,631
Trader Rating: 2 (100%+)
Send a message via Yahoo to Big Daddy Boomer
Default

Quote:
Originally Posted by PizzaDude View Post
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?
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.

Last edited by Big Daddy Boomer; 08-20-2007 at 05:13 AM.
Big Daddy Boomer is offline   Reply With Quote
Old 08-19-2007, 04:31 PM   #843
Tech Elite
 
L.Fairtrace's Avatar
 
Join Date: Apr 2004
Location: Beyond the Wall
Posts: 3,772
Trader Rating: 23 (100%+)
Send a message via AIM to L.Fairtrace
Default

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.
__________________
Awesomatix USA - EaMotorsports - RocheUSA - MonTech - Sanwa - BSR Racing Tires - TQ Wire - Solaris Racing Tires - Side Piece Racing

180 and 360 Raceway. Best on the East Coast. Take your pick
L.Fairtrace is offline   Reply With Quote
Old 08-19-2007, 05:16 PM   #844
Tech Elite
 
Yeti35's Avatar
 
Join Date: Sep 2004
Location: SL, UT
Posts: 2,804
Trader Rating: 5 (100%+)
Default

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.
__________________
JRXS Type R, I have four of them!! ;) ( Yes, I still have them!!)And racing one of them again!!
22 3.0SR
22T 2.0 w/ Exotech chassis
Yeti35 is offline   Reply With Quote
Old 08-19-2007, 10:40 PM   #845
51
Tech Regular
 
51's Avatar
 
Join Date: Nov 2001
Location: So Cal
Posts: 360
Default

Quote:
Originally Posted by Big Daddy Boomer View Post
The room rate is 89 dollars a night throughout our event.
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!
__________________
Brent Thielke - Associated Team Manager
** AE Forum - www.aeforums.co.uk **
51 is offline   Reply With Quote
Old 08-19-2007, 11:19 PM   #846
R/C Tech Founder
R/C Tech Charter Subscriber
 
Join Date: Aug 2001
Location: Del Mar, CA, USA
Posts: 7,063
Default

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.
__________________
Visit my store: www.ampdraw.com
futureal is offline   Reply With Quote
Old 08-20-2007, 12:44 AM   #847
Tech Master
 
PizzaDude's Avatar
 
Join Date: Nov 2002
Location: Parts Unkown
Posts: 1,044
Default

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!!!
PizzaDude is offline   Reply With Quote
Old 08-20-2007, 04:40 AM   #848
luc
Tech Adept
 
Join Date: Jun 2003
Posts: 218
Trader Rating: 1 (100%+)
Default

Quote:
Originally Posted by PizzaDude View Post
Guys,


Just curious.

Quote:
1/10th scale foam sedan 4mm
1/10th scale rubber sedan 5mm

Can someone explain why there is a difference in rideheight for TC Foam an TC Rubber?


Thanks,
Pizza

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 !!!!
luc is offline   Reply With Quote
Old 08-20-2007, 05:13 AM   #849
Tech Elite
 
Big Daddy Boomer's Avatar
R/C Tech Charter Subscriber
 
Join Date: Aug 2002
Location: Trackside Hobbies Milwaukee
Posts: 2,631
Trader Rating: 2 (100%+)
Send a message via Yahoo to Big Daddy Boomer
Default

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
Big Daddy Boomer is offline   Reply With Quote
Old 08-20-2007, 06:18 AM   #850
Tech Regular
 
Join Date: Feb 2003
Location: West Bloomfield, MI
Posts: 493
Send a message via AIM to Bobby Flack
Default

/

Last edited by Bobby Flack; 08-20-2007 at 04:59 PM.
Bobby Flack is offline   Reply With Quote
Old 08-20-2007, 06:49 AM   #851
Tech Master
 
Join Date: Nov 2003
Posts: 1,768
Trader Rating: 1 (67%+)
Default

Quote:
Originally Posted by PizzaDude View Post
Guys,


Just curious.

Quote:
1/10th scale foam sedan 4mm
1/10th scale rubber sedan 5mm

Can someone explain why there is a difference in rideheight for TC Foam an TC Rubber?


Thanks,
Pizza


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.
Josh Hohnstein is offline   Reply With Quote
Old 08-20-2007, 06:51 AM   #852
Tech Elite
 
Yeti35's Avatar
 
Join Date: Sep 2004
Location: SL, UT
Posts: 2,804
Trader Rating: 5 (100%+)
Default

Quote:
Originally Posted by PizzaDude View Post
Yeti: that would mean both, foam and rubber, change tire diameters, again why the difference
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.
__________________
JRXS Type R, I have four of them!! ;) ( Yes, I still have them!!)And racing one of them again!!
22 3.0SR
22T 2.0 w/ Exotech chassis
Yeti35 is offline   Reply With Quote
Old 08-21-2007, 06:44 AM   #853
Tech Elite
 
Big Daddy Boomer's Avatar
R/C Tech Charter Subscriber
 
Join Date: Aug 2002
Location: Trackside Hobbies Milwaukee
Posts: 2,631
Trader Rating: 2 (100%+)
Send a message via Yahoo to Big Daddy Boomer
Default Partial Re-post

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***
-----------------------------------------------------------------------

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.
---------------------------------------------------------------------
Big Daddy Boomer is offline   Reply With Quote
Old 08-21-2007, 06:50 AM   #854
JCB
Tech Addict
 
JCB's Avatar
 
Join Date: Nov 2003
Location: New Jersey
Posts: 741
Default

Ampdraw,

Will you be carrying TC5 parts??
JCB is offline   Reply With Quote
Old 08-21-2007, 06:51 AM   #855
Tech Elite
 
Yeti35's Avatar
 
Join Date: Sep 2004
Location: SL, UT
Posts: 2,804
Trader Rating: 5 (100%+)
Default

Quote:
Originally Posted by JCB View Post
Ampdraw,

Will you be carrying TC5 parts??
Shane will have a full line of parts, so you should have no worries about parts for a TC5.
__________________
JRXS Type R, I have four of them!! ;) ( Yes, I still have them!!)And racing one of them again!!
22 3.0SR
22T 2.0 w/ Exotech chassis
Yeti35 is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
2008 INTERNATIONAL INDOOR CHAMPIONSHIPS "IIC" LAS VEGAS Scotty Ernst Electric On-Road 1718 09-07-2008 11:35 AM
HPC 1:8 Buggy & Truggy International Championship 2007 (SEPT 15th and 16th....2007) HPC II Malaysian R/C Racers 195 09-22-2007 01:32 AM
2006 International Indoor Championships @ Las Vegas, Nevada futureal Electric On-Road 1145 03-13-2007 10:44 PM
8th Annual Magma Indoor Championship 2007 APS Racing Electric On-Road 1 12-02-2006 07:14 PM
2005 International Indoor Championships @ Las Vegas caleracer45 Electric On-Road 2219 01-04-2006 05:46 AM



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off



All times are GMT -7. It is currently 04:18 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net