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This is a place to share knowledge related to 1/12th scale racing. It is not to be used for conversations.

KITS:
Click links to go to manufacturer product page. If any are missing please add them!

TIRES:
Pre-mounted tires readily available in the US:
Pre-mounted tires readily available in the Europe:
  • Hot Race ??

Gluing your own donuts:
https://www.youtube.com/watch?v=hm7z1rz-74s - Special thanks to Edward Pickering!
Truing tires:
https://www.youtube.com/watch?v=8wqHOLWq6Uc - Special thanks to Edward Pickering!

The following information came from HERE, with some editing and information added. Thanks Christian!

THIS MAY NEED UPDATING FOR THE NEW BLACK CRC CARPET

Brands:
BSR, CRC, Jaco:
Pro One is no longer selling to the public, but it and the brands above are all mounted by BSR and use the same foam. The nomenclature of the BSR vs Jaco/CRC is a little different in a few instances but is otherwise the same. The BSR foam consists of three families, and can be identifed as synthetics, naturals, and blends.

Synthetics - The old school, light weight, easy to true "dry feeling" tires. These include tires like CRC/Jaco Yellow (BSR White), Black, Gray, etc. These tires offer the highest wear rate and lowest grip. Many racers continue to use these nder high bite conditions.

Naturals - These tires are usually the best alternative for low bite and asphalt. They include Pink, Magenta, Double Pink, Lilac (BSR Team Purple), Purple, and other tires. These tires provide a ton of grip, but tend to get sticky in high bite conditions. This rubber does not wear as easily, and the cars will pick up gunk and fibers from the carpet under most high bite conditions. This is especially bad if the humidity is high.

Blends - These are the tires most people run today. They were initially called "JFT foam" by some, as it was believed that the tires were the same as the JFT tires. We can divide the blends further into two groups: high rubber and low rubber content. The high rubber would be the new rear Orange and Red from the BSR family, and the low rubber would be the Green and Blue varieties. When, asked about the difference, John Foister from BSR Tires said they came from the same "family" of foam, but they offered different grip. According to John, the Green/Blue has more bite than Orange/Red, but from track testing Oranges offer more bite than Green (being equivalent to in hardness) when the grip is high and absolutely no grip when it is lower. The Orange foam has a denser pore structure and the tire is not as prone to chunking. It is also important to note is that BSR Blue rears are not the same as the BSR Blue fronts!

JFT:
JFT stands for Japan Foam Tire. They started the new wave of foam tires we are all using now (Blue/Blu, Green/Greene, Dbl Blue, etc). These tires are a little different than the BSR tire family, but work in very similar conditions. They offers four varieties A (asphalt), C (carpet), S (???), and R (???). This does not mean that those types only work on that surface, but this is what they recommend.

JFT uses the same foam for fronts and rears if the color is the same.

A: Used on asphalt, considered close to the natural rubber variety and are named consistently with other natural tires.
C: Used on carpet, considered a blend.
S: Used on carpet?, tires are ???
R: Used on carpet?, tires are ???

For setup, the JFT foam seem to generate more bite than the BSR, therefore the car tends to be a little more aggressive.

Ulti:
Ulti is another Japanese brand that offers an array of compounds. They have their own way of rating tires, and are difficult to equate to other brands. They have 4 different varieties, each in varying degrees of hardness.

J: High rubber content tire, similar to Pink/ Magenta. Soft would be close to a pink. These offer the most bite and are great for asphalt/carpet front tire. (J hard being very popular)
X: "Balanced" blend, similar to JFT Blue/ Green. Soft is equivalent to Green, medium to Blue in hardness. Great for carpet!
Y: High synthetic blend with lower grip, and is not a very popular variety.
Z: A very expensive "special" foam that is supposed to be magic on asphalt. Only make it in soft shore.
European tires:
There are many great European foam tire brands that use their own types of foam, as well as traditional foams. SOmeone with more knowledge about them will need to fill this in!

Tire Diameter:
If you are racing on carpet, you have to evaluate how much grip your track has. If your track is low to medium grip, you can run bigger tires. If you are on higher bite you have to cut them smaller, there is simply no way around it. Bigger tires are needed for asphalt, especially in the rear. The larger tires provide much needed lateral bite.

Carpet (mm):
Low - Medium Bite
Front: 42.0 - 42.5
Rear: 42.5 - 43.00
Medium - High Bite
Front: 40.5 - 41.0
Rear: 41.5 - 42.0
Big Race
Front: 39.5 - 40.0
Rear: 40.5 - 41.0
Asphalt (mm):
Parking Lot
Front: 43.0 - 44.0
Rear: 44.0 - 45.0
Prepped High Bite
Front: 42.0 - 43.0
Rear: 43.0 - 44.0

Tire Saucing:
Most facilities have moved towards odorless traction additives such as SXT. Some of additives evaporate very quickly and some do not. This seems to be something that is also dependent on tire compound and ambient temperature. For example, saucing a Green compound seems like it never dries, especially when tjhe temperature is lower. We have found that wiping the tires off 15 minutes before we go run allows the sauce to cure, which makes the car come in much quicker with Green rears. Blue compounds on the other hand, do fine when wiped off right before hitting the track.

Saucing half front and full rear is a good initial starting point. If the front of the car is too agressive you can sauce les than half, or for a shorter amount of time.
Tire Fuzzing:
In conditions of increasing grip, foam tires will somewtimes get sticky and pick up fuzz and debris from the track. This is highly dependent on the rubber sedan tire that is being run at your local track and the compound/ type of foam you are running on you car. The softer the sedan tire and the harder/higher rubber content in your foam tire, trouble with fuzzing seems more likely to occur.

There are ways to get around fuzzing under most conditions, and usually involves the selection of the correct foam compound. The more fuzz you get, the softer/lower rubber content you want to run.

Examples:
Problem: Car fuzzes with Lilac/Team Purple fronts and car starts pushing.
Solution: Use a softer front tire and or different family of foam. Replace it with Blue or Double Blue front.

Problem: Car loses rear bite 6 minutes into the run. Blue rear tires look almost clean but have small carpet hairs.
Solution: Use Green rear tires. The softer compound wears instead of getting sticky, minimizing fuzz.

Tire Selection:
Starting out, pick 2 tire compounds for the front and rear. The following should have you covered 99% of the time.

Front - Green and Blue (BSR) or Green and Light Blue (JFT)
Rear - Blue and Double Blue (BSR) or Blue and Dark Blue (JFT)

You may wonder about other compounds out there and if they might be better, trust me, they probably won't be. Even if there are other tires that can be as fast, the synthetic family wears out really fast and the high natural rubber will probably fuzz on you over an 8 minute run. The blends family seems to be the most versatile foam type available today. They last awhile, and sticking to them will make your process of tire selection simpler.
Tire Charts:
BSR/CRC/Jaco



Contact



Corally



JFT (Japan Foam Tire)



Ulti



Enneti (Xceed)



ELECTRONICS:
ESC:
As of now, ROAR is staying 1S (3.7V nominal; 4.2V fully charged) for 1/12. There are many 1S ESC's with a built in BEC so nothing else is required to power the receiver and servo.

If you don't want to lock yourself into a 1S specific ESC, you do have other options! It is possible to use your 2S ESC without a booster or receiver pack, and the ESC simply supplies the lower voltage. If that does not appeal to you, you will need to use an Rx pack or booster. The Rx pack and booster will both supply the receiver with a higher voltage than the 1S pack.

If you decide to use an Rx pack, MAKE SURE TO REMOVE THE RED WIRE FROM THE ESC PLUG THAT GOES INTO THE RECEIVER!!!

If you choose to use a voltage booster, it works exactly how it sounds. Instead of plugging the ESC into the receiver, it plugs into the booster, and the booster plug goes to the ESC, supplying the higher voltage.

1S ESC:
If there are any missing please add them!!

If anyone would like a need for a chart comparing the ESC's specs PM fenton06 and I'll get one made and put in here!
Voltage Boosters:
If there are any missing please add them!
Servos:
BODIES:
Black Art (CRC - US Dist):
  • Audi R8C - BA002 - .020 Thick



  • Black Market (Mohawk 12) - BA005 - .020



  • Lola B10 - BA006 - .020 thick
  • Toyota TS030 - BA008 - .020 thick

    Lola - black/red, TS030 - green/pink


PROTOForm:

Reflex Racing/RSD:

SUSPENSION ADJUSTMENTS:

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Old 02-07-2012, 05:58 PM   #37681
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Originally Posted by racer x 1 View Post
can we all go back to white rims? white rims are faster! haha
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Old 02-07-2012, 06:30 PM   #37682
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Enetti part numbers are a bit "tedious". The ones we're stocking are Enetti foam, on an Enetti rim, coming in an Enetti box.

The stuff with "M" numbers is synthetic rubber and the "A" is the natural rubber... as best we understand it. M is like black and yellow. A stuff is like pinks and magenta familys.

Chicky knows the absolute. We need Chicky to shed the final light on this. But that's our take on it.

Enetti:
http://www.stormerhobbies.com/cgi-bi...umb=on&smode=0

Quote:
Originally Posted by RedBullFiXX View Post
The way Stormer has them listed is confusing.
It looks like two different numbers for the same product ?
Perhaps Bob can shed some light on this...

And then there's this

Stormer has Enetti Foam mounted on Enetti Wheels


A-Main has Enetti Foam mounted on Exceed Wheels
Note the difference in the wheels
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Old 02-07-2012, 07:31 PM   #37683
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Originally Posted by Bob-Stormer View Post
Enetti part numbers are a bit "tedious". The ones we're stocking are Enetti foam, on an Enetti rim, coming in an Enetti box.

The stuff with "M" numbers is synthetic rubber and the "A" is the natural rubber... as best we understand it. M is like black and yellow. A stuff is like pinks and magenta familys.

Chicky knows the absolute. We need Chicky to shed the final light on this. But that's our take on it.

]

You got it right Bob!
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Old 02-07-2012, 07:55 PM   #37684
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That's right, more of the happy dance!

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Old 02-07-2012, 08:19 PM   #37685
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Thanks guys.

I figured there was a difference.

The Enetti wheels are nice and true btw, fit a bit on the tight side though.
Opposite of Jaco that always seem a bit oversize on the center hole, front & rear.

Haven't tested the new Exceed carbon wheels yet.
The older exceed lightweight wheels were horrible, hope the new ones are better.
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Old 02-07-2012, 10:01 PM   #37686
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I have thoroughly crash tested the Carbon Black Xceed Enneti wheels and have yet to break one.
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Old 02-07-2012, 10:23 PM   #37687
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Thanks for the information on the Enneti tyres guys!

Cheers,
Mike
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Old 02-07-2012, 11:18 PM   #37688
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What do you guys use to pop the ball links off the front steering? I put one turnbuckle on backward and prefer to have them adjust the same direction. I would like something that wont scratch up the balls and doesn't feel like I'm ripping the car apart. Those suckers are on there tight!
Thanks

edit
Car is a associated 12r5.1 . Are all 1/12 scale steering ball links the same size? If so what are the preferred ball cups? The associated ones don't pop off but they have a fair bit of slop in them. I'm not opposed to starting with links that are tool tight and bind that you could size to fit.
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Last edited by luckyhomes; 02-07-2012 at 11:46 PM.
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Old 02-08-2012, 12:05 AM   #37689
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What do you guys use to pop the ball links off the front steering? I put one turnbuckle on backward and prefer to have them adjust the same direction. I would like something that wont scratch up the balls and doesn't feel like I'm ripping the car apart. Those suckers are on there tight!
Thanks

edit
Car is a associated 12r5.1 . Are all 1/12 scale steering ball links the same size? If so what are the preferred ball cups? The associated ones don't pop off but they have a fair bit of slop in them. I'm not opposed to starting with links that are tool tight and bind that you could size to fit.

They make cheaper sets but I had these from my helicopter:
http://www.amainhobbies.com/product_...all-Link-Plier

They work pretty well...Also I am seeing a lot of guys go to the tc6 tie rod ends. I am thinking about getting a set the next time I order.
Hope this helps
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Old 02-08-2012, 11:47 AM   #37690
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Originally Posted by luckyhomes View Post
What do you guys use to pop the ball links off the front steering? I put one turnbuckle on backward and prefer to have them adjust the same direction. I would like something that wont scratch up the balls and doesn't feel like I'm ripping the car apart. Those suckers are on there tight!
Thanks

edit
Car is a associated 12r5.1 . Are all 1/12 scale steering ball links the same size? If so what are the preferred ball cups? The associated ones don't pop off but they have a fair bit of slop in them. I'm not opposed to starting with links that are tool tight and bind that you could size to fit.

Personally I just grab the ball ends and twist them around till them pop off. Mind you If I get slop in mine the change them out they are cheap.

And Yes there are different sizes depending on your car. for the Associated is the same as the crc and many others.
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Old 02-08-2012, 01:39 PM   #37691
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Originally Posted by LonnyJ1950 View Post
I have thoroughly crash tested the Carbon Black Xceed Enneti wheels and have yet to break one.
I bought a couple pairs of the white Xceed Enneti tires, and was OK with the foam, but the rims were horribly distorted. I put them on a truer and was absolutely unable to get them to spin straight... the rears were worse than the fronts, so much wobble that it was like 1mm of movement up and down as you spun the wheel. And that was on both sets!

Needless to say, I've gone to CRC wheels again and they seem to be a bit more consistent for mouldings. Although I did like the xceed design of the rims much more!
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Old 02-08-2012, 03:12 PM   #37692
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Originally Posted by RedBullFiXX View Post
Thanks guys.

I figured there was a difference.

The Enetti wheels are nice and true btw, fit a bit on the tight side though.
Opposite of Jaco that always seem a bit oversize on the center hole, front & rear.

Haven't tested the new Exceed carbon wheels yet.
The older exceed lightweight wheels were horrible, hope the new ones are better.
Quote:
Originally Posted by LonnyJ1950 View Post
I have thoroughly crash tested the Carbon Black Xceed Enneti wheels and have yet to break one.
Quote:
Originally Posted by Clegg View Post
I bought a couple pairs of the white Xceed Enneti tires, and was OK with the foam, but the rims were horribly distorted. I put them on a truer and was absolutely unable to get them to spin straight... the rears were worse than the fronts, so much wobble that it was like 1mm of movement up and down as you spun the wheel. And that was on both sets!

Needless to say, I've gone to CRC wheels again and they seem to be a bit more consistent for mouldings. Although I did like the xceed design of the rims much more!
The white and black xceed wheels we our of round pretty bad but the NEW Enetti carbon wheels are from a different mold and like Dave said are super straight. Just know that there is a difference. If they are carbon they are the good ones!
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Old 02-08-2012, 06:34 PM   #37693
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The new Exceed wheel is pretty good, and its HUGE, I think it might be bigger than the CRC wheel, but it may just be an illusion. I ran my first set of black fronts to the rim and then some, worked good.
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Old 02-08-2012, 06:59 PM   #37694
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How's it going DR? You are too right about the new exceed wheels, I think the wheel itself is bigger than the tires most pros run.
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Old 02-08-2012, 07:36 PM   #37695
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Has anyone tried these? http://85.214.48.145/tires-and-rims

Obviously Mobers runs them with success.
The Yokomo wheels look similar to the Ennetti Carbons.
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