Author Topic: TIres for 1/12 CRC (Read 10420 times)

Grinder · « **on:** August 01, 2005, 11:06:09 PM »

Are these the tires we use for 1/12th scale?

Jaco 1/12 Front Tires Mounted Purple
Jaco 1/12 Rear Tires Mounted Grey

haddow · « **Reply #1 on:** August 01, 2005, 11:54:59 PM »

correct compound, weak wheel. Nothing beats CRC's dished wheels.

jarrodH · « **Reply #2 on:** August 02, 2005, 01:10:14 AM »

go down to shaver just about everybody uses those tires and there not a bad price.

Grinder · « **Reply #3 on:** August 04, 2005, 03:49:28 AM »

Quote from: "haddow"

correct compound, weak wheel. Nothing beats CRC's dished wheels.

Are the ones at the hobby shop dished or is that just the fronts? I thought they were kind of cone shaped on the rear?

Is there a dished one for the rears I should be running?

Blake · « **Reply #4 on:** August 04, 2005, 12:27:07 PM »

Yeah, the rears are cone shaped. Here's a pic from the CRC site:

http://www.teamcrc.com/crc/images/emporium/products/media/2163.jpg

These are definitely the wheels of choice for newcomers to 12th Scale this winter. Other wheels have not stood up well in comparison with these ones. These wheels were probably used by half the field at Cleveland last year too so you can be sure they have an awesome track record.

Blake

Grinder · « **Reply #5 on:** August 04, 2005, 12:39:30 PM »

Do we CA the outside of the tires as well like the Nitro Shoes or do you do inside/outside for these?

Blake · « **Reply #6 on:** August 04, 2005, 01:43:45 PM »

Hmm, are you CAing your Nitro Shoes because you're having traction rolling problems? Or, is it to try and prevent chunking maybe?

Normally, with 12th Scale racing, you'll CA the outside edge of the tire if you're having traction rolling issues. The theory is that the hard, glued, edge of the tire will slip on the carpet before the car will roll over. I know from experience that this works amazingly well on super high traction tracks where your car wants to traction roll all over the place. This is never a problem on our 12th Scale track however as our carpet just doesn't have this kind of traction available.

I guess you could glue the edge of your 12th Scale tires in hopes of preventing chunking but it might change the handling of the car a bit.

Blake

Grinder · « **Reply #7 on:** August 04, 2005, 03:21:35 PM »

I was thinking more about extending the life of the tire (preventing chunking). Does it have an adverse affect on handling? I know a big chunk out of the tire would have a bigger effect

Blake · « **Reply #8 on:** August 04, 2005, 04:47:03 PM »

Hey Kurk,

I think it can definitely affect handling. I think it gives the tire less traction because when your car leans in a corner, some (just a little) of the glued edge will now come in contact with the carpet. The tire will break lose at this point. Again, this is exactly what you want when you're suffering from traction rolling.

So, if you glue the outside edge of your front tires, you'll probably get less steering. And if you glue the outside edge of your rear tires then you're car will likely loosen up a bit. So, if you do both then the net effect might be negligible. Gluing the inside edge will probably have no effect on handling.

Tom or Craig can probably shine a little more light on this stuff.

Blake

Grinder · « **Reply #9 on:** August 05, 2005, 03:30:24 AM »

If you a portion of the glued side wall rolls over and hits the carpet you will loose a portion of your traction but not all of it since most of the unglued tire is still in contact with the carpet. Won't stiffer sidewalls give you more traction (other than the glued part coming in contact with the carpet) since it resists the tires from "rolling over"?

« **Reply #10 on:** August 05, 2005, 12:25:00 PM »

well i think you just need to wait for 12 scale as it is nothing at all like a touring car..................and all theese thoughts on tires wont do you any good untill you get to try a 12 scale on carpet

Blake · « **Reply #11 on:** August 05, 2005, 12:27:25 PM »

Could be, I'm not really sure how the sidewall stiffness will affect things.

This is what I noticed in Cleveland last year:

In my first practice run I ignored all the warnings about traction rolling, went barreling down the straightaway, around the sweeper, and instantly traction rolled in the 180 there. The car was basically undriveable like this.

In my second practice run (7 hours later, and after about 550 more cars had done their first practice run getting the track a lot stickier) I glued the outside edge off my front tires. Wow, what a difference! The car showed only the slightest inclination to roll in the one high speed 180.

In my third practice run (by this time the track was getting ultra sticky) I lowered the car to the exact minimum and I glued the outside edge of the rear tires. This time the car never even inclined to roll (likely due to the lowering of the chassis). I did notice that the car got just a little squirrelly though. So, I'm attributing that squirrellyness to less rear traction. So, from my observations, it seems like gluing the outside edge of a tire will have the effect of decreasing the traction of that tire.

That's what I observed, but I'm generally bad at "reading" my car's performance on the track. I can never make a real decisive decision about the affect a suspension/tire chance made to the handling.

See ya Sunday,
Blake

limey · « **Reply #12 on:** September 07, 2005, 11:29:03 PM »

What do you guys think of JACO brand tires?

life?

recomended compounds? (if any)

would you run them if they were cheaper than the gray/purple CRC combo?

or is performance the number one priority?

thanks for your input

« **Reply #13 on:** September 08, 2005, 12:14:16 AM »

well they say jaco wheels are no good ...... i guess they are known to break easy..........but my question is from when did whoever come to that conclusion...............as i have found with touring car rubber isnt the same from one year to the next, example- yokomo 138g's so mabye jaco has better stronger wheels now?

Tom · « **Reply #14 on:** September 08, 2005, 02:29:09 AM »

I've never run the exotic compounds before myself, since in my opinion they're too pricy. I've just run Yokomo or Paragon tires. However, since I've been unable to buy new foam for many years now, I'll likely have to bite the bullet and get some of these outrageously expensive tires that don't seem to last any longer than the cheaper tires I've been running.

Performance is important, but you can get most types of tires to hook up with the correct combination of compound and traction wash. So, to me, price is quite important as well.

I also like the option of buying un-mounted donuts, so that I can mount them myself on rims. That's because I use old-school rims, which are far tougher than the new-style 2 or 3 bolt pattern wheels. It is quite discouraging to see donuts being sold for a dollar less than pre-mounted tires, or even worse yet, not having the option of buying donuts at all.

What would be ideal would be a selection to choose from, but I figure I must be smoking something I shouldn't be if I think too hard about that.

Just to let people know, many guys won't care at all about the life of a tire, since they'll either bust the rim (which makes the tire useless), or chunk the tire (again making it useless) long before there is a chance to wear out the foam. So, for about 3/4 of the club, what should be by far the most important consideration would be price, and about 1/4 of the club will get enough life out of the tire that the wear rate and performance will become motivating factors in compound choice. R/C racing is expensive enough; it would be great if there were an easily available low-cost tire option available.

CHRIS_MORRISON · « **Reply #15 on:** September 08, 2005, 03:01:14 AM »

i run the jaco tires and have not broken a whell at all you can get the jacos in the same compound as the crcs

« **Reply #16 on:** September 08, 2005, 11:06:55 AM »

but what is the cost for the jaco's..........as i have a hard time paying more for the crc's than i do for nitro shoes

Grinder · « **Reply #17 on:** September 08, 2005, 11:52:39 AM »

Quote from: "Tom"

I've never run the exotic compounds before myself, since in my opinion they're too pricy. I've just run Yokomo or Paragon tires. However, since I've been unable to buy new foam for many years now, I'll likely have to bite the bullet ....

No - not the Bullet! You love that car!

Tower Hobbies has Jaco donuts Green for $7.69 and Purple for $12.99

Hobby Wholesale in Edmonton has Jaco mounted front/rear grey/purples for $16.50 a pair. No PST and shipping is usually about $5

« **Reply #18 on:** September 08, 2005, 12:08:26 PM »

i dont want donuts i want mounted wheels...........as i dont run old school 2 bolt

Grinder · « **Reply #19 on:** September 08, 2005, 12:15:33 PM »

Quote from: "Grinder"

Hobby Wholesale in Edmonton has Jaco mounted front/rear grey/purples for $16.50 a pair. No PST and shipping is usually about $5

These are mounted....

« **Reply #20 on:** September 08, 2005, 01:03:05 PM »

well thats pretty much what you can get crc from shaver for i think fronts are 20 and rears are 4-5 bucks more

Tom · « **Reply #21 on:** September 08, 2005, 02:30:47 PM »

Yah, but what about donuts? And what about traditional compounds, like yellow, green, blue and orange? And what about Yokes and Paragons?

The Shaver Shop used to carry all these options.

limey · « **Reply #22 on:** September 08, 2005, 02:46:04 PM »

I rose the topic of Jaco tires because JQ asked me if the club would use them because we are tracking down options for the upcoming season.

how many people use donuts?

other compounds blue, yellow etc?

Tom · « **Reply #23 on:** September 08, 2005, 03:03:50 PM »

How many people will use different compounds will depend on price.

If you could get yellow and green tires in for half the price of purples and grays, I'd think you would sell lots of the yellows and greens. Even at 2/3rds of the price, I would strongly urge many club members who have a tendancy to chunk tires to use those.

Personally, I'd buy just the donuts so I can use my old wheels, and people who have been running for some time would likey also just get the donuts and re-use old wheels, if the wheels in the pre-mounted sets cost more than a few cents over just the donuts.

haddow · « **Reply #24 on:** September 08, 2005, 04:53:25 PM »

a few of the new wheels I have seen are no longer made of plastic that is resistant to the harsh chemicals required to free the old donut off the rim.

IE CRC wheels can not be reused, shame too as they are strong enough to last the rubber life but they melt when they see lacquer thinner.

limey · « **Reply #25 on:** September 08, 2005, 08:01:23 PM »

We now have Jaco grays and purple mounted tires for $19.50 a pair

« **Reply #26 on:** September 08, 2005, 08:31:32 PM »

well thats pretty much same price as crc fronts....... what about the rears is it same price or what?

Grinder · « **Reply #27 on:** September 08, 2005, 09:24:55 PM »

Quote from: "haddow"

a few of the new wheels I have seen are no longer made of plastic that is resistant to the harsh chemicals required to free the old donut off the rim.

IE CRC wheels can not be reused, shame too as they are strong enough to last the rubber life but they melt when they see lacquer thinner.

Jody - Can we buy some CRC's bulk from CRC?

Blake - Or maybe Korgie can get us Jaco's with pricing like he gets the Nitro Shoes for us?

limey · « **Reply #28 on:** September 08, 2005, 09:41:31 PM »

thats for fronts and rears

haddow · « **Reply #29 on:** September 09, 2005, 01:40:10 PM »

Hey Guys

I will NOT be selling/ordering CRC stuff (other than used equipment). The BC Shaver Shop can get the parts you need. Get the CRC part numbers off the CRC website before you go to the shaver shop. The CRC stuff has been reasonably priced downtown in the past.

If you want if before racing starts, order soon!!!!!!

If everyone posted here what they want we could put in one large order to simplify things.