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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 12-18-2003, 10:56 AM   #5626
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Quote:
Originally posted by stormperson
That is Josh's body, and his company is CEFX. I heard baker tried one in mod 12th at cleveland it was too twichy however, in stock they should probalby be better in stock, maybe, i dunno. I got some in cleveland and havent tried em yet. BTW, those mazda headlights dont look half bad on a 12th scale...

No reflex 12 thread on this forum that I have seen. And btw, you really cant lower a 12th scale that much. The motor, batteries, servo, esc, and rx are already as low as possibly on pretty much every 12th scale. The front end, nothing is really lower than the old style front end, and the axle is a matter of tire size. Also the shock is mounted lower (right onto the chassis instead of half a inch up with and AE mount however, I think alot of guys move the shock anyway because it handles better, or least thats what I have heard. Also the damper tubes are below the chassis to start out with however the factory drivers are moving them above the chassis...
Right on......those whole ran Reflex at our track, all complaint about the lack of travel of the rear damper tubes....and placing them above the damper plate is another hard tesk (lack of room)...but I think I am not really appreciate is the tires they use, seems like $20 a pair brand new foam and must be trued 50% in order to fit on that car, everytime I true the foam by that much, kinda like watching me throwing money to the water....

I think I can live with the 2 years old SB12 SE.

Can anyone tell me where I can see more info about CEFX or at least order some body from them online...? Thanks again...

P.S....just realized that Josh is no longer in Trinity, and he actually made his own car and team up with CEFX (I know, it is old news)
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Old 12-18-2003, 11:04 AM   #5627
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Default Re: Trinity BLOWS!!!!!!!!!!!

Quote:
Originally posted by Adam Hartzell
Back in July I ordered a new SB chassis from Trinity. I got a notice saying that it was on back order. I decided to switch to Speedmerchant and called Trinity to cancel the order. I just got an email from Trinity today saying that my SB chassis is shippind and that my credit card was billed. What kind of B.S. company does chit like this. Now I have to call those renobs and try to deal with them. In case you can't tell I HATE TRINITY!!!!!!!!!!!!
Thats why I asked here to see do I have any alternative to buy Trinity kit or parts beside Trinity website.....I am not a computer or web expert, but by looking at his online shop, I knew that if I am buying from them direct, I will ended up the same BS like you.........they cannot tell the parts are in stock or back order, but they for sure will take your money immediately.....

BTW, did they send you the old discontinued Trinity Switchblade Spashette edition 12 or send you the new Reflex 12...? If you have the new one, you can sell it on ebay without problem (by not losing too much money...) if that is the old SB12SE....sorry to hear that.

But since you got charged by your credit card, call up your credit card company and tell them you refused to pay for that specific item, then let them deal with Trinity, however, you must call Trinity first to resolve the situation prior to your CC company cause they might ask you to ship the car back to them and Trinity should be able to REFUND your money immedately. If Trinity decided to refund your money, you then have to PAY your CC company the full amount and the CC company will credit you on your NEXT PAYMENT........that happened to me on AE before....it is BS and it is pain in the axx..............
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Old 12-18-2003, 11:29 AM   #5628
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Default CEFX Body

I love the looks of the body, but I have had some difficulty getting it to sit low enough on a CK3.1 with a reactive front end. It looks like as long as you are running a low profile front end, this body is tight.

I wound up mounting up an Ascari, because it fit over the newer style front end better. I'll be playing with the CEFX on the back-up car to see if I can get it to fit better.


doug

Last edited by squarehead; 12-19-2003 at 08:32 AM.
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Old 12-18-2003, 11:34 AM   #5629
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For those who want to see the actual photo of the Trinity Reflex, I have some here....





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Old 12-18-2003, 12:04 PM   #5630
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Here's what I stuck in it last night... (too bad the ESC is 10x the weight of my quantum 2 )

Sunday's Mod race should be some fun!

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Old 12-18-2003, 12:20 PM   #5631
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Quote:
Originally posted by Geek
Here's what I stuck in it last night... (too bad the ESC is 10x the weight of my quantum 2 )

Sunday's Mod race should be some fun!

If I were you, I'd snip that wire tie and run those wires as far away from the links as possible. That's just a recipe for scary handling.
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Old 12-18-2003, 03:18 PM   #5632
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Default reflex 12

rookie:-

a few Q's about ur reflex,

1) how thick EXACTLY is your reflex 12? the sb12 came in at 3mm for the standrad chasis...
2)what the hell servo is that? looks to be blue anodized, how/where can you get that done?

3) how does it go?
4) who has these cars instock? and how much?

thanks in advance
matt
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Old 12-18-2003, 03:57 PM   #5633
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Are we thinking about getting one then Matt???????
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Old 12-18-2003, 04:05 PM   #5634
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just thinking about it... i dont really know.

roger could go either way now that helgar are importing the CEFX, george might want him to stay trinity, or promote the cefx..... im not quite sure yet, its just i wanted to get some info on it 1st.

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Old 12-18-2003, 04:16 PM   #5635
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Depends on when George actually sees a CEFX car, suspect that it may not even be this season for us. Must get me self a shell when he gets some in though.
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Old 12-18-2003, 04:20 PM   #5636
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LOL.. very true!

KThobbies has them in already.... i think i may get one and do some testing with it.

i cant see the CEFX going into major prduction for some time yet, and as you say, maybe not even this season

that new reflex had definately grwon on me though... its quite nice actually!
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Old 12-18-2003, 04:22 PM   #5637
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p.s. the smilies are badd-ass on this site!
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Old 12-18-2003, 04:30 PM   #5638
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It's the wrong colour for you though isn't it

i'd like to get one in time for teeside and try it there, but having spent nearly 2 days spraying last week, not sure if i can face any more.
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Old 12-18-2003, 04:36 PM   #5639
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ROFLOL

especvially when i get my Mi2


i dunno, when the 1st pics came out, it looked a bit tacky, but looking at it from them pics,a dn the ones on overrc.com... has sorta made me look at it a bit more.

pete wintons got his, i think yesterday, and he lives literally 2 mins up the road from me, he said i can pop round and have a butchers at it! that will be the true test

we shall see.... but a CEFX for teeside would go down a treat, dont know if you've been there before or not, but be prepared for BUMPS

logging off now... im knackered!

l8rs
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Old 12-18-2003, 07:10 PM   #5640
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Default CEFX

I believe that Josh posted on his thread that he wanted to have his car available before Snowbirds in Feb. I don't know if this true or not you'll have to ask him yourself.
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