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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 07-16-2007, 11:28 PM   #26266
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You mean that it was Slapmaster vs Purple? I thought that I was just having a hard time getting through traffic.
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Old 07-16-2007, 11:35 PM   #26267
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Originally Posted by Slapmaster6000 View Post
You mean that it was Slapmaster vs Purple? I thought that I was just having a hard time getting through traffic.
Brian, Great running with you last week. You are right about the tires, we could of used 2 sets all week if we knew that magic combo. The problem is that I didn't figure it out until A3. Wish I could have been more competative and gave you a run for that 3rd spot. I did take you out in A2, but I waited
All in all I had a blast
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Old 07-16-2007, 11:49 PM   #26268
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I should have been faster in that corner.... but you did get in a good lick! I felt crippled from the money tree to the straight entrance. Well..... then there was the rest of the track I had issues. Yea, it was great to meet so many new guys. That was the 2nd time I have met James. I think you need to be under 5' 8" to be fast..... just a thoery. James.... Trav.... Blackstock.... see the pattern here? I am old, little fat, and 5'11". don't really fit the mold of what's "fast".

But really, I enjoyed meeting everyone! It was a fun weekend.
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Old 07-16-2007, 11:58 PM   #26269
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Jason, what do I think? I think I hope I am still on the back-order list!! Car looks ace, very well made and just the right amount of everything! Can't wait...!!
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Old 07-17-2007, 04:41 AM   #26270
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thanks guys,im really glad you like it.
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Old 07-17-2007, 11:32 PM   #26271
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Jason,
How many are you looking at for your first production run. Also, are you going to go ahead and include the BL pod as standard or can in be changed out at time of order?

E
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Old 07-18-2007, 12:12 AM   #26272
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Quote:
Originally Posted by Slapmaster6000 View Post
You mean that it was Slapmaster vs Purple? I thought that I was just having a hard time getting through traffic.
it was Purple traffic! Those Mad Rippers are just intense

Brian it was great to meet you and I wish we had more time to talk, but I'm sure you could see I was just as busy as you. Not with Team Mad Rip, they seemed to be able to motivate themselves (gas) toward their ultimate goal (world domination)

All kidding aside, we should talk about the "Future Car". How about a West Coast Challenge?

O'D
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Old 07-18-2007, 12:12 AM   #26273
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Thanks Paul for the pics.... Team Mad Rip is in da house!!! Can't wait until the next go 'round...
BTW, i'll be picking up your car stand tomorrow
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Old 07-18-2007, 12:20 AM   #26274
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Originally Posted by odpurple View Post
How about a West Coast Challenge?

O'D
Sounds interesting
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Old 07-18-2007, 04:14 AM   #26275
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Quote:
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Jason,
How many are you looking at for your first production run. Also, are you going to go ahead and include the BL pod as standard or can in be changed out at time of order?

E

i am making the first run of 75 cars and parts for 150.i will be feeling out the interest with the first run and going back into production before the first kits are sold.i will be keeping a consistant flow of them with plans of always have kits and parts in stock.the BL pod is standard on the car.
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Old 07-18-2007, 06:13 AM   #26276
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How to preorder a kit...
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Old 07-18-2007, 09:16 AM   #26277
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Quote:
Originally Posted by ttso View Post
How to preorder a kit...
How to Preorder the Pod
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Old 07-18-2007, 09:34 AM   #26278
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Quote:
Originally Posted by Slapmaster6000 View Post
I should have been faster in that corner.... but you did get in a good lick! I felt crippled from the money tree to the straight entrance. Well..... then there was the rest of the track I had issues. Yea, it was great to meet so many new guys. That was the 2nd time I have met James. I think you need to be under 5' 8" to be fast..... just a thoery. James.... Trav.... Blackstock.... see the pattern here? I am old, little fat, and 5'11". don't really fit the mold of what's "fast".

But really, I enjoyed meeting everyone! It was a fun weekend.
We have a lower CG so that gives us more cornerspeed. Great hanging out with you and the crew last week Brian. I can't believe how much faster Kuney got after switching to your car. Thanks for the bumper, i'll definately be trying that out when get enough energy to unpack.

-James
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Old 07-18-2007, 11:14 AM   #26279
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I just got back home...I stuck around in Seattle to golf after the race. I wanted to take a second to congratulate Josh-CEFX and Mike Blackstock for a great win In 19t. I also wanted to Congratulate James for an out standing WIN in stock and a 2nd in 19t your car looked amazing all weekend! Great Driving !! Im not sure if everyone knew this too but James was running EP4200 matched by Kwik..I think this is a first Nationals WIN in on-road for the new EP4200. Who says its not as fast as IB Congratulations needs to go out to Brian and Jeff for putting the Slapmaster on the podium for both Stock and 19t. The cars looked real good by the end of the weekend. Kuney you stuff was a fricken rocket bro! Thanks for all the help I cant wait to race with you guys again!

Keoni
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Old 07-18-2007, 03:53 PM   #26280
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all pre orders can be emailed to me at bmachine@tampabay.rr.com all we will need is your name,contact telephone number,and what you are ordering and we will contact you for payment when we ship out the products.
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