R/C Tech Forums

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

    Hide Wikipost
Old 10-28-2016, 12:43 PM   -   Wikipost
R/C Tech Forums Thread Wiki: 1/12 forum
Please read: This is a community-maintained wiki post containing the most important information from this thread. You may edit the Wiki once you have been a member for 90 days and have made 90 posts.
 
Last edit by: fenton06
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:

Print Wikipost

Reply
 
Thread Tools Search this Thread
Old 03-11-2013, 04:31 PM   #39361
Tech Champion
 
Radio Active's Avatar
 
Join Date: Jun 2003
Location: Newcastle, Australia
Posts: 6,995
Trader Rating: 2 (100%+)
Default

Quote:
Originally Posted by Madulla View Post
Being on the other side of the world you would know better haha. I was going off info from last year. Wonder if it is a one off or if TLR plan to make it. But you think that they would make a TC first.
You'd think they'd make a 4WD Buggy first. People have been hanging out for one of those from them for a decade.
__________________
Reigning NSW 4WD Group 20 Champion
Member: Maitland Radio Car Club (http://www.morcc.com.au)
twitter: @dvcotton
Australian 12th Scale hastag: #EP12AU
Radio Active is offline   Reply With Quote
Old 03-11-2013, 05:41 PM   #39362
Tech Elite
 
DesertRat's Avatar
R/C Tech Elite Subscriber
 
Join Date: Mar 2011
Location: Sniffin the 'Sauce Fumes
Posts: 2,379
Trader Rating: 1 (100%+)
Default

Water down the 1/12 market even more? Associated, BMI, CRC, Corally, Kyosho, On-point, Serpent, Speedmerchant, Xray, Yokomo, thats ten right there.
__________________
I race toy cars for fun. If I need to explain, you'll never understand.
If everything is under control... go faster.
WTB: Carpet racing in Arizona.
It is obvious and intuitive to the most casual of observers that RC racing is better than golf.
DesertRat is offline   Reply With Quote
Old 03-11-2013, 06:26 PM   #39363
Tech Champion
 
abailey21's Avatar
R/C Tech Elite Subscriber
 
Join Date: Aug 2007
Location: SoCal
Posts: 5,150
Trader Rating: 35 (100%+)
Default

Quote:
Originally Posted by DesertRat View Post
Water down the 1/12 market even more? Associated, BMI, CRC, Corally, Kyosho, On-point, Serpent, Speedmerchant, Xray, Yokomo, thats ten right there.

I fail to see the issue with 10, possibly 11 companies making a car for one of the oldest radio control car classes?

I think it's amazing 12th scale is still such a strong class after 30+ years, I know 12th is the class I want to return too once I'm financially able too
__________________
K.C.C.O.
abailey21 is offline   Reply With Quote
Old 03-11-2013, 06:48 PM   #39364
Moderator
 
Clegg's Avatar
 
Join Date: Jan 2004
Location: Outside doing things in places... Denver, CO
Posts: 4,602
Trader Rating: 9 (100%+)
Default

There are way more than even that count of 1/12 mfgs. You can't "water down" a market with cars... People will buy what they want regardless of number of mfgs. You can water it down with more and more classes though. More mfgs in a single class doesn't do much to change the number of people running in a given class, if anything it brings more people in who want to try something different.

It is nice to have options, unlike TC where you are stuck with what ever 3 or 4 dominant mfgs insist you should buy.

I think we should be encouraging more development, and mfgs to throw their hat in. It makes the class more fun.
__________________
Joe Kelly - JK720.net
5280 Raceway |5280raceway.com | 5280 Raceway Facebook
Clegg is offline   Reply With Quote
Old 03-11-2013, 06:49 PM   #39365
Tech Master
 
EricF's Avatar
 
Join Date: Jun 2003
Location: AZ
Posts: 1,516
Default

Rat,
Some peolp are brand loyal and wont venture outside of that brand.
E
__________________
<
AE 12R5.2 (x2) - TC7 - M05 - M05V2R

People who don't have to wait for the latest item, should not tell those that do, that "It's worth the wait"
EricF is offline   Reply With Quote
Old 03-11-2013, 06:59 PM   #39366
Tech Champion
 
RedBullFiXX's Avatar
R/C Tech Elite Subscriber
 
Join Date: Mar 2003
Location: Intergalactic Planetary
Posts: 6,539
Trader Rating: 34 (100%+)
Default

Quote:
Originally Posted by DesertRat View Post
Water down the 1/12 market even more? Associated, BMI, CRC, Corally, Kyosho, On-point, Serpent, Speedmerchant, Xray, Yokomo, thats ten right there.
Add CEFX, Tamiya, TOP
And a plethora of smaller Euro twelve mfgs like, V-Dezign, Laje, Alien.. etc

Never enough 12th scale in the world

__________________
--> 12th scale Information Source <--

"Men do not quit playing because they grow old; they grow old because they quit playing."
― Oliver Wendell Holmes Jr.
RedBullFiXX is offline   Reply With Quote
Old 03-11-2013, 07:38 PM   #39367
Tech Master
 
LonnyJ1950's Avatar
 
Join Date: Aug 2009
Location: Tucson, AZ. USA
Posts: 1,141
Default

+1 I think the Alien car looks interesting! I'd like to see one up close and running.
__________________
Lonny
LonnyJ1950 is offline   Reply With Quote
Old 03-11-2013, 07:58 PM   #39368
Tech Elite
 
odpurple's Avatar
 
Join Date: Dec 2002
Location: San Francisco
Posts: 2,187
Default

Quote:
Originally Posted by RedBullFiXX View Post

Never enough 12th scale in the world
Word Brother
__________________
TOP Racing USA--OD Racing--Novak--Power Push--J Spec
odpurple is offline   Reply With Quote
Old 03-11-2013, 09:17 PM   #39369
Tech Elite
 
DesertRat's Avatar
R/C Tech Elite Subscriber
 
Join Date: Mar 2011
Location: Sniffin the 'Sauce Fumes
Posts: 2,379
Trader Rating: 1 (100%+)
Default

Quote:
Originally Posted by EricF View Post
Rat,
Some peolp are brand loyal and wont venture outside of that brand.
E
Quote:
Originally Posted by RedBullFiXX View Post
Add CEFX, Tamiya, TOP
And a plethora of smaller Euro twelve mfgs like, V-Dezign, Laje, Alien.. etc

Never enough 12th scale in the world

Quote:
Originally Posted by abailey21 View Post
I fail to see the issue with 10, possibly 11 companies making a car for one of the oldest radio control car classes?

I think it's amazing 12th scale is still such a strong class after 30+ years, I know 12th is the class I want to return too once I'm financially able too
Quote:
Originally Posted by odpurple View Post
Word Brother
You guys are right, it's not really that Losi can't or shouldn't, I just don't think they will because they have a lot of established competitors in this field, and winning from scratch even with the talent of Splashett and others will be tough. I don't think they will get money out of it.
__________________
I race toy cars for fun. If I need to explain, you'll never understand.
If everything is under control... go faster.
WTB: Carpet racing in Arizona.
It is obvious and intuitive to the most casual of observers that RC racing is better than golf.

Last edited by DesertRat; 03-11-2013 at 09:58 PM.
DesertRat is offline   Reply With Quote
Old 03-11-2013, 09:33 PM   #39370
Tech Champion
 
Radio Active's Avatar
 
Join Date: Jun 2003
Location: Newcastle, Australia
Posts: 6,995
Trader Rating: 2 (100%+)
Default

Quote:
Originally Posted by DesertRat View Post
You guys are right, it's really that Losi can't or shouldn't, I just don't think they will because they have a lot of established competitors in this field, and winning from scratch even with the talent of Splashett and others will be tough. I don't think they will get money out of it.
Spashett is already winning.

The difference between 12th scale cars is small at best. I would think this is one class any manufacturer could win with the right driver.
__________________
Reigning NSW 4WD Group 20 Champion
Member: Maitland Radio Car Club (http://www.morcc.com.au)
twitter: @dvcotton
Australian 12th Scale hastag: #EP12AU
Radio Active is offline   Reply With Quote
Old 03-11-2013, 10:02 PM   #39371
Tech Elite
 
DesertRat's Avatar
R/C Tech Elite Subscriber
 
Join Date: Mar 2011
Location: Sniffin the 'Sauce Fumes
Posts: 2,379
Trader Rating: 1 (100%+)
Default

Quote:
Originally Posted by Radio Active View Post
Spashett is already winning.

The difference between 12th scale cars is small at best. I would think this is one class any manufacturer could win with the right driver.
Or a bit of luck.
__________________
I race toy cars for fun. If I need to explain, you'll never understand.
If everything is under control... go faster.
WTB: Carpet racing in Arizona.
It is obvious and intuitive to the most casual of observers that RC racing is better than golf.
DesertRat is offline   Reply With Quote
Old 03-11-2013, 10:26 PM   #39372
Tech Champion
 
RedBullFiXX's Avatar
R/C Tech Elite Subscriber
 
Join Date: Mar 2003
Location: Intergalactic Planetary
Posts: 6,539
Trader Rating: 34 (100%+)
Default

Spashett is one of those very special drivers


IFMAR World Championship 1:12th Electric Modified

1982 Carbonell, A. USA Anaheim/USA
1984 Niesinger, T. USA Herning/Denmark
1986 Niesinger, T. USA Las Vegas/USA
1988 Hirosaka, M. Japan Baarn/Netherlands
1990 Doseck, C. USA Singapore
1992 Neisinger, T. USA Grand Rapids/USA
1994 Spashett, D. Great Britain Paris/France
1996 Hirosaka, M. Japan Pomona/USA
1998 Spashett, D. Great Britain South Tyneside/Great Britain
2000 Hirosaka, M. Japan Tokyo/Japan
2002 Hirosaka, M. Japan Krugersdorp/South Africa
2004 Hirosaka, M. Japan Kissimmee/USA
2006 Spashett, D. Great Britain Collegno,Italy
2008 Matsukura, N. Japan Bangkok/Thailand
2010 Matsukura, N. Japan Burgdorf/Germany
2012 Matsukura, N. Japan Heemstede/Netherlands
__________________
--> 12th scale Information Source <--

"Men do not quit playing because they grow old; they grow old because they quit playing."
― Oliver Wendell Holmes Jr.
RedBullFiXX is offline   Reply With Quote
Old 03-11-2013, 10:47 PM   #39373
Tech Adept
 
Join Date: Oct 2009
Posts: 104
Default Tire Recommendation

Hi All,

I have a new Kyosho Plazma RA with the following gear:

Motor: Team Orion Vortex VST Pro Brushless Motor (4.5T)
Battery: Team Orion Carbon Pro 6400mAh 3.7V 90C
ESC: Team Orion Vortex R10 Pro

Unfortunately the nearest carpet track is, well, not very near...so I'm looking for some new tires that will provide some more grip on the asphalt.

The first set I tried was a pair of Xceed RC "Enneti" 1/12th rears (Medium - 30 Shore) and Medium/35 Shore on the front.

Can anyone recommend an alternative compound that might give me some better traction?

Thanks!

sundevil67 is offline   Reply With Quote
Old 03-11-2013, 10:57 PM   #39374
Tech Elite
 
DesertRat's Avatar
R/C Tech Elite Subscriber
 
Join Date: Mar 2011
Location: Sniffin the 'Sauce Fumes
Posts: 2,379
Trader Rating: 1 (100%+)
Default

Natural rubber tires like a Pink 30 shore rear and a 40 shore purple front should be good, I think those ennetis are synthetic and if they are it is not optimal for modified.

What kind of tire sauce?
__________________
I race toy cars for fun. If I need to explain, you'll never understand.
If everything is under control... go faster.
WTB: Carpet racing in Arizona.
It is obvious and intuitive to the most casual of observers that RC racing is better than golf.
DesertRat is offline   Reply With Quote
Old 03-11-2013, 11:17 PM   #39375
Tech Adept
 
Join Date: Oct 2009
Posts: 104
Default Tire Recommendation

Thanks - unfortunately no local shops carry 1/12 tires! Actually I had to dig a little to find the ones I bought online - any good online retailers you'd recommend for these? I haven't tried any sauce...but suggestions welcome! I haven't driven 1/12 since the original Plazma about 20 years ago, and tire compound wasn't much of an issue ... you could actually grab a trigger-full of throttle without fishtailing in those days

Quote:
Originally Posted by DesertRat View Post
Natural rubber tires like a Pink 30 shore rear and a 40 shore purple front should be good, I think those ennetis are synthetic and if they are it is not optimal for modified.

What kind of tire sauce?
sundevil67 is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
New to the forum mig rod Electric Off-Road 1 01-05-2008 05:23 PM
hi i need help and im new to the forum racer4 Rookie Zone 4 01-21-2007 02:37 PM
Why is this forum listed under the On Road Forum? sport10 Onroad Nitro Engine Zone 0 01-11-2007 08:06 AM
Forum Changes... futureal Wisconsin & Illinois Racing 3 10-28-2002 09:26 PM



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 10:53 PM.


Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net

SEO by vBSEO 3.5.0