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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 04-27-2007, 04:35 PM   #25186
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yeah,i am hoping to be able to complete them real soon.maybe within the next week or so.
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Old 04-27-2007, 07:12 PM   #25187
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Quote:
Originally Posted by Grenade10
I have found a little firmer tire on the Darkside car works well, so don't leave with out black or purple fronts. Pink rears work here and the prep is similar. However, we do not have the humidity that you have.
That makes sense now that I think about it. My old EV10 I used to run gas car foams on the rims which had a higher rubber content then the pan car foams of the day and it worked well with those. Maybe the same will hold true with my Darkside.

Protc3 the reason I ordered blacks to try this time is because I've been hearing that purples tend to increase grip as they warm up. I was thinking this might be why my car seems fine in the first qualifiers but as the day wears on the back gets really loose. The t-bar cars don't seem to have the same problem.
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Old 04-27-2007, 07:54 PM   #25188
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the purples do increase traction during the run.up front they are a little pushy and gradually build up grip.i gave up on them a while back for this reason.up front my laps were slower than they should be and as the run went on,it got better.with the stiff competition around here,those 2 minutes can make you lose a race.the 2x pink feels like a purple after it gets good.
the blacks are a very low rubber content.they are similar to the greys in that respect.the magentas are high natural rubber content as are the pinks.the black is a high foam content from what i understand.hell,you guys know how those car react on the track,2x pink may be too much front bite so the blacks would be a good comprimise.i just never did like them on the T bar cars or my new one for asphalt.also note that i like alot of steering.i dont use it all but i like my car to turn 1 ft. circles and i dont turn the wheels much to make the corners.this is the way i drive as wierd as it sounds but i seem to hit the best laps this way and when you come up on a surprise oh sh!t corner where a few guys crash in front of me,it helps to get around it.
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Old 04-27-2007, 08:15 PM   #25189
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Quote:
Originally Posted by CarlosG.
I did and it made the car loose in the rear on power. The track right now has alot of pollen that did not get washed off with all the rain we have had. The track owner uses trackbite. I blow the the track off when P2 is not around. That is what I have been using since I have alot of theose tires from running the race that David beat my arse in. I just use them to use them. I was just saying that is I was getting out of them. I hate to see good things sit for along time, like tires, and not get used. I especially kringe when I cut them down to a smaller size seeing all that rubber go down the trash can( or shall it be a waste of money).
Carlos, I don't understand why you continually not listen to me on what works out at our track. You ask questions on this forum and get the same answer I give you. There is a reason why you are 3-4 laps down, it's because you don't want to listen to me. You may think that my set-up doesn't work, but why does it work for Ronnie and everyone else? I always run pink rears and magenta fronts...pretty standard everywhere. If you want to be that fast driver you pretend to be, why don't you swallow your pride and listen.
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Old 04-27-2007, 08:39 PM   #25190
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Yeah Protc3 I understand wanting a lot of steering...it can really get you out of a jam sometimes when your up against a barrier. But my car has so much steering now I have the dual rate dialed down to 50%. When rear traction is good I can turn it up much higher and I'm pretty fast comparitively...but lately I just haven't been able to get the rear traction I want. I've even considered going to double purple fronts.
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Old 04-27-2007, 08:40 PM   #25191
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I was not asking a question in that post. I was just stating how many runs I get out of the white rears.
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Old 04-27-2007, 09:12 PM   #25192
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Quote:
Originally Posted by P2
Carlos, I don't understand why you continually not listen to me on what works out at our track. You ask questions on this forum and get the same answer I give you. There is a reason why you are 3-4 laps down, it's because you don't want to listen to me. You may think that my set-up doesn't work, but why does it work for Ronnie and everyone else? I always run pink rears and magenta fronts...pretty standard everywhere. If you want to be that fast driver you pretend to be, why don't you swallow your pride and listen.
dont hold back,tell us how you really feel
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Old 04-27-2007, 10:09 PM   #25193
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Quote:
Originally Posted by protc3
dont hold back,tell us how you really feel
That's right, man, P2 is tough. Just the kind of guy I like to have running for me
Only thing is I can't tell him what to do cuz he kinda scares me
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Old 04-27-2007, 10:54 PM   #25194
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Quote:
Originally Posted by CarlosG.
I was not asking a question in that post. I was just stating how many runs I get out of the white rears.
I will visit soon and lap you!
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Old 04-27-2007, 11:19 PM   #25195
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Quote:
Originally Posted by P2
Carlos, I don't understand why you continually not listen to me on what works out at our track. You ask questions on this forum and get the same answer I give you. There is a reason why you are 3-4 laps down, it's because you don't want to listen to me. You may think that my set-up doesn't work, but why does it work for Ronnie and everyone else? I always run pink rears and magenta fronts...pretty standard everywhere. If you want to be that fast driver you pretend to be, why don't you swallow your pride and listen.

and you two pit together

Carlos try and run what paul runs and do one adjustment at a time
I can tell you right now that Pauls car will have more steering than you have in your car, thats is one reason why we get around the corners better but it is also the way to be faster on a track,most people at Mike's track cant get my car around the track without hitting the wall and the frist thing they say to me {you have to mutch steering in your car how can you drive it? } last year J ran my car for one heat at Mike's and when he handed my car back the steering was truned down to 40% and he still stated it had to mutch for him.

P.S. have not seen James yet to get him the part you want.
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Old 04-27-2007, 11:21 PM   #25196
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Quote:
Originally Posted by odpurple
That's right, man, P2 is tough. Just the kind of guy I like to have running for me
Only thing is I can't tell him what to do cuz he kinda scares me

you can take him. if not don't give him anymore parts and he will come around.
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Old 04-28-2007, 03:42 AM   #25197
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Quote:
Originally Posted by CarlosG.
I was not asking a question in that post. I was just stating how many runs I get out of the white rears.
Carlos - It wasn't an "atack" against you. I saw that Jason said that you should try magentas and asked for your setup. It's kind of hard for someone to tell what is the right setup for a particular track w/out being able to race it first hand. Like Tim said, I'm here to help you, try one change at a time and don't give up. If the car is too hard for you to get around the track, don't give up. Try and learn how to drive it that way. James tried my car before and said that it has too much steering for him. Ronnie tried it and said he wants his car to be just like mine...and he's pretty fast

Jason B. No offense to you, your help is always welcome on this fourm. Just trying to help Carlos first hand.
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Old 04-28-2007, 03:43 AM   #25198
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Quote:
Originally Posted by tpczx6
you can take him. if not don't give him anymore parts and he will come around.
Speaking of parts......OD, where is my rear brace
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Old 04-28-2007, 04:19 AM   #25199
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Quote:
Originally Posted by P2
Carlos - It wasn't an "atack" against you. I saw that Jason said that you should try magentas and asked for your setup. It's kind of hard for someone to tell what is the right setup for a particular track w/out being able to race it first hand. Like Tim said, I'm here to help you, try one change at a time and don't give up. If the car is too hard for you to get around the track, don't give up. Try and learn how to drive it that way. James tried my car before and said that it has too much steering for him. Ronnie tried it and said he wants his car to be just like mine...and he's pretty fast

Jason B. No offense to you, your help is always welcome on this fourm. Just trying to help Carlos first hand.
no offense taken bro.i almost fell off my chair laughing.too funny bro
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Old 04-28-2007, 05:24 AM   #25200
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Quote:
Originally Posted by P2
Carlos - It wasn't an "atack" against you. I saw that Jason said that you should try magentas and asked for your setup. It's kind of hard for someone to tell what is the right setup for a particular track w/out being able to race it first hand. Like Tim said, I'm here to help you, try one change at a time and don't give up. If the car is too hard for you to get around the track, don't give up. Try and learn how to drive it that way. James tried my car before and said that it has too much steering for him. Ronnie tried it and said he wants his car to be just like mine...and he's pretty fast

Jason B. No offense to you, your help is always welcome on this fourm. Just trying to help Carlos first hand.
I have tried your setup, and like I have told you once before it has to much steering. I have it now to where I wanted almost, except I want to get away from the whites and get with the pinks or dbl pinks in the rear. As long as the track is in the condition that it is, I will be running what I am running till the heat comes up to warm up the tires. He asked for my setup. I did not ask him for a setup. If someone asks me for my setup, I will give it to them. If they can tweak it abit more then more power to them. I have learned not to ASSume to much from what is being posted in here, but will not jump conclusions. I hate when people jump to conclusion!!!!!
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