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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 03-10-2004, 08:01 AM   #7081
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Looks like they have new pivot ball parts for the t-plate as well. Wonder if they are any better or just new?
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Old 03-10-2004, 08:28 AM   #7082
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Default Source for Wire

I'm having a hellofa time finding 16ga wire. Do any of you know a source? I've checked the usual places, all only stock 14ga or larger.


Oh, and as for the thicker chassis... my guess is the battery and motor technology has gotten these things so fast for 8min that it's necessary for handling on carpet.
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Old 03-10-2004, 08:30 AM   #7083
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Quote:
Originally posted by sands
Looks like they have new pivot ball parts for the t-plate as well. Wonder if they are any better or just new?
I think the front pivot is just a dremeled down stock piece. The rear pivot appears to be the same old part.
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Old 03-10-2004, 09:24 AM   #7084
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Default Re: Source for Wire

[QUOTE]Originally posted by spyderx
[B]I'm having a hellofa time finding 16ga wire. Do any of you know a source? I've checked the usual places, all only stock 14ga or larger.


http://www.nyblimp.com/superior/wire.htm
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Old 03-10-2004, 09:32 AM   #7085
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Hey guys. Im getting a Rev3 from a friend (as soon as he fixes it of course) so setup information would be appreciated.

Also, I dont know if any of you guys had seen this but this is a list I posted up for a big event Im planning called teh US Pan Car Championships (you muight have seen speedxl post a few things about it):

Here is the Pro12 (12th scale onroad) body list:

V. Pro12 4 cell stock and modified on road
a. Approved Bodies
i. Associated
1. Jaguar Group C
2. TOJ Sports
3. Nissan GTP-90
ii. CEFX
1. C-LMP 900
2. C-LMP 675
iii. Dahms
1. Lowla LT-12
iv. Hot Bodies
1. Diablo GTP
2. Ferrari WSC
3. 1/12 Toyota GT1
v. Parma
1. Bentley EXP Speed 8
vi. Protoform
1. Bentley Speed 8 LMP
2. Speed 12 GTP
3. Ascari LMP
4. Nissan P35
vii. Trinity
1. T-310 LMP
2. EXP Speed 9

I know you can find all of those at Tower Hobbies, but Im sure you could order them through your LHS as well. I hope you guys are up for supporting what could very well be the linchpin to the pan car revival!
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Old 03-10-2004, 09:37 AM   #7086
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Quote:
Originally posted by Tres
LOL @ CypressMidWest

Anyone else notice all the guys are going to a stiffer chassis and with less holes???

My guess would be due to 12th scale being ran on carpet a lot more.

Plus, the solid chassis makes for better mounting of electronics.
its harder to take off too!

the car would be nice if it doesnt come with the composite rear pod but with the IRS lowered pods

Last edited by disaster999; 03-10-2004 at 09:51 AM.
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Old 03-10-2004, 09:45 AM   #7087
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Default Re: Source for Wire

Quote:
Originally posted by spyderx
I'm having a hellofa time finding 16ga wire. Do any of you know a source? I've checked the usual places, all only stock 14ga or larger.


Oh, and as for the thicker chassis... my guess is the battery and motor technology has gotten these things so fast for 8min that it's necessary for handling on carpet.
http://www.castlecreations.com/
its cheaper here...you get 5 feet of both red and black for 5 bucks
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Old 03-10-2004, 10:51 AM   #7088
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Default 16 GA wire

cheapbatterypacks.com has 16ga wire for 55cents per foot, black or red.
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Old 03-10-2004, 11:02 AM   #7089
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Quote:
Originally posted by trackdesigner71
Hey guys. Im getting a Rev3 from a friend (as soon as he fixes it of course) so setup information would be appreciated.

Also, I dont know if any of you guys had seen this but this is a list I posted up for a big event Im planning called teh US Pan Car Championships (you muight have seen speedxl post a few things about it):

Here is the Pro12 (12th scale onroad) body list:

V. Pro12 4 cell stock and modified on road
a. Approved Bodies
i. Associated
1. Jaguar Group C
2. TOJ Sports
3. Nissan GTP-90
ii. CEFX
1. C-LMP 900
2. C-LMP 675
iii. Dahms
1. Lowla LT-12
iv. Hot Bodies
1. Diablo GTP
2. Ferrari WSC
3. 1/12 Toyota GT1
v. Parma
1. Bentley EXP Speed 8
vi. Protoform
1. Bentley Speed 8 LMP
2. Speed 12 GTP
3. Ascari LMP
4. Nissan P35
vii. Trinity
1. T-310 LMP
2. EXP Speed 9

I know you can find all of those at Tower Hobbies, but Im sure you could order them through your LHS as well. I hope you guys are up for supporting what could very well be the linchpin to the pan car revival!
Don't now if this is on Carpet or asphalt
But you are mising this

Andys
Sauber Mercedes

Yokomo Mercedes MS-1

Alf :-)

Last edited by alf.skaar; 03-12-2004 at 04:44 AM.
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Old 03-10-2004, 11:45 AM   #7090
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thanks for the reminder and as of right now its on asphalt at a track in Texas
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Old 03-10-2004, 11:46 AM   #7091
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Hot bodies Nissan GTP and Protoform Courage C41 WSC.
Or are those out of production?
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Old 03-10-2004, 11:49 AM   #7092
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alright keep em comin!
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Old 03-10-2004, 11:51 AM   #7093
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Quote:
Originally posted by Mag
Hot bodies Nissan GTP and Protoform Courage C41 WSC.
Or are those out of production?
Im pretty sure they are out of production but I bet that you could still find a few at shops around.
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Old 03-10-2004, 09:15 PM   #7094
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This is kind of a nickel knowledge question but which company made the TOJ Sports race car that inspired the body made by Team Associated?
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Old 03-11-2004, 08:09 AM   #7095
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parma! bj. they made the toj body.

or if you asking interms of a full scale car they were fashioned after the can am cars of the 60's and early 70's! ex: mclaren. porsche, intrepids, and jim halls winged car. aswell as some others that i cant remember right now.
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Last edited by speedxl; 03-11-2004 at 11:49 AM.
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