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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 12-19-2006, 10:16 PM   #22711
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Quote:
Originally Posted by Mark O'Brien
I figured this would be a good place to ask this question. Does anyone know who makes the black fiber tape for batteries ? I'm specificaly looking for the company or dist for a supplier.
http://products3.3m.com/catalog/us/e...er/output_html

http://products3.3m.com/catalog/us/e...er/output_html
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Old 12-19-2006, 10:56 PM   #22712
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Quote:
Originally Posted by protc3
hey guys,

i spoke with AE yesterday.i called to order the front end kits for our new 1/12th car and apparently there mold is screwed up and they are trying to get it fixed.they are out of stock and said they will not be holding inventory like they did before.they said they will need 90 days to complete orders
so what i will be doing is developing our own front end.i have no choice in this matter at this point.this will set things back a little bit but hopefully we will be on schedule for the snowbirds.i am actually kinda happy about this being that now i am kinda forced to focus on our new front end instead of putting it on the backburner until the car is released.this will make the car just that much better.i will keep you guys posted on the release and if our car will still be able to hold the same price tag.i will try like hell to keep it as low as possible but rest assured,this is going to be one serious piece of work.sorry for the delay.
No problem, I can wait
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Old 12-19-2006, 11:36 PM   #22713
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JB: where's the love? Just kidding. Buy 'em up, let me drive one to see what it's like.

We missed ya this past weekend at Rain City for the Over and Out race. We had a good group. Even Keith Yu set the touring car aside and ran a new Corrally. He looked real good for a new car. But Keith has been a great driver for a long time. I laid down a TQ and personal best of 58/8:07. 3 times, I was on a 59+.

I have been using the steering rack for 3 consecutive race days now without a single issue. This past weekend, I really sunk my teeth into adjustments. I played back-n-forth with different front tires and different ackerman angles and different front track widths. Saturday, the car was money! Sunday, I did not anticipate the track correctly and found myself a half of a step in the wrong direction each time. Still, it was fast as hell as I was on a 60 lap pace 4 minutes into the run when my brain let go. I could have knocked Trav's name off of the record board with that fast 58 of his. But now it looks like his name will remain there as Deb throws the locks forever on Rain City.
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Old 12-20-2006, 01:39 AM   #22714
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Default Toe Set-up

Hey All,
I am a TC guy and just received a Gen X a few weeks ago. I was wondering how everyone achieves accurate toe-in/out and steering throw symmetry on their 1/12 scales. Until Hudy comes out with a 1/12 set-up station I am out of ideas!!!
Thanks in advance,
Kane
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Old 12-20-2006, 03:18 AM   #22715
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Quote:
Originally Posted by Kane-o
Hey All,
I am a TC guy and just received a Gen X a few weeks ago. I was wondering how everyone achieves accurate toe-in/out and steering throw symmetry on their 1/12 scales. Until Hudy comes out with a 1/12 set-up station I am out of ideas!!!
Thanks in advance,
Kane
use calipers and your eye.
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Old 12-20-2006, 03:35 AM   #22716
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Quote:
Originally Posted by Slapmaster6000
JB: where's the love? Just kidding. Buy 'em up, let me drive one to see what it's like.

We missed ya this past weekend at Rain City for the Over and Out race. We had a good group. Even Keith Yu set the touring car aside and ran a new Corrally. He looked real good for a new car. But Keith has been a great driver for a long time. I laid down a TQ and personal best of 58/8:07. 3 times, I was on a 59+.

I have been using the steering rack for 3 consecutive race days now without a single issue. This past weekend, I really sunk my teeth into adjustments. I played back-n-forth with different front tires and different ackerman angles and different front track widths. Saturday, the car was money! Sunday, I did not anticipate the track correctly and found myself a half of a step in the wrong direction each time. Still, it was fast as hell as I was on a 60 lap pace 4 minutes into the run when my brain let go. I could have knocked Trav's name off of the record board with that fast 58 of his. But now it looks like his name will remain there as Deb throws the locks forever on Rain City.
I'm like a doorknob- everyone gets a turn
Sorry I couldn't make it but me & misses had a dinner date
Great job (as usual ) on the TQ & laying the smack down. Now I have to travel 70 miles 1-way to get my carpet fix
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Old 12-20-2006, 05:56 AM   #22717
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Quote:
Originally Posted by Mark O'Brien
I figured this would be a good place to ask this question. Does anyone know who makes the black fiber tape for batteries ? I'm specificaly looking for the company or dist for a supplier.
I can help you with this. PM me

-E
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Old 12-20-2006, 06:22 AM   #22718
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Quote:
Originally Posted by Kane-o
Hey All,
I am a TC guy and just received a Gen X a few weeks ago. I was wondering how everyone achieves accurate toe-in/out and steering throw symmetry on their 1/12 scales. Until Hudy comes out with a 1/12 set-up station I am out of ideas!!!
Thanks in advance,
Kane

I'm an "everything RC" guy and I just got a GEN X for my first 12th scale... I saw some guys at SouthShore Hobbies using a tweak station that had toe in/out pieces on it that could be removed and used as camber gauges.... someone chime in on this one....

**Edit: Found it... Unity Tools

http://www.unitytool.com/Unity_Tools...ek_boards.html
Attached Thumbnails
1/12 forum-unity-tweak-alignment-station-2.jpg  

Last edited by akura2; 12-20-2006 at 06:40 AM.
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Old 12-20-2006, 06:36 AM   #22719
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Quote:
Originally Posted by protc3
hey guys,

i spoke with AE yesterday.i called to order the front end kits for our new 1/12th car and apparently there mold is screwed up and they are trying to get it fixed.they are out of stock and said they will not be holding inventory like they did before.they said they will need 90 days to complete orders
so what i will be doing is developing our own front end.i have no choice in this matter at this point.this will set things back a little bit but hopefully we will be on schedule for the snowbirds.i am actually kinda happy about this being that now i am kinda forced to focus on our new front end instead of putting it on the backburner until the car is released.this will make the car just that much better.i will keep you guys posted on the release and if our car will still be able to hold the same price tag.i will try like hell to keep it as low as possible but rest assured,this is going to be one serious piece of work.sorry for the delay.
I've got parts in stock, e-mail me and let me know what you need, I might be able to help

-E
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Old 12-20-2006, 06:42 AM   #22720
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Quote:
Originally Posted by akura2
I'm an "everything RC" guy and I just got a GEN X for my first 12th scale... I saw some guys at SouthShore Hobbies using a tweak station that had toe in/out pieces on it that could be removed and used as camber gauges.... someone chime in on this one....

**Edit: Found it... Unity Tools

http://www.unitytool.com/Unity_Tools...ek_boards.html
Pretty sure you are talking about the Unity tweak station. Can be picked up at Brooklyn Hobbies.

www.brooklynhobbies.com

Gael
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Old 12-20-2006, 07:58 AM   #22721
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WOW, I love the looks of that tweak ststion. Damn, now I am going to have to buy one. Now how can I talk my wife into it? Ahh it's a tool I need for work. But she works with me and she would never see it at work. Oh Santa PLEASE....
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Old 12-20-2006, 08:26 AM   #22722
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JackH - I've had mine for over 15 years. You'll be able to sell off all of your set up stations. It does the work of layout board for track width, can check correct left and right width, toe in / toe out and camber for all 4 wheels. Will do 1/12, 1/10 and 1/8 scale gas.

So tell her you are selling all the other stuff, it will be smaller and weigh less, so you won't hurt your back carring all the parts!!
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Old 12-20-2006, 08:41 AM   #22723
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"So tell her you are selling all the other stuff, it will be smaller and weigh less, so you won't hurt your back carring all the parts!! "


Now that's thinking.

Jack

Last edited by jackh; 12-20-2006 at 10:17 AM.
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Old 12-20-2006, 08:48 AM   #22724
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Grenade10, I went to http://hometown.aol.com/hatrick1966/. Looks like a nice track. What are you guys using for barriers? We use 2x4's and plastic corners however the TC guys sure break a lot of front ends if they hit the boards.

I am always looking for ways to improve the track

www.twinbridgesrc.com
Jack
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Old 12-21-2006, 12:05 AM   #22725
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Hey Guys (Gals Too)
I am looking to start 1/12 racing I have an extra Novak Milenium Pro II (hardly used) with deans M Plug installed with a Power Sorce 12v 12.5 with 2 ports (new) I will trade for a 1/12 car T-bar style(have no idea what that means but dan at sir said they run good)

Thanks
Brian
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