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 11-13-2006, 06:55 PM   #21901
Tech Elite
 
theisgroup's Avatar
 
Join Date: Apr 2002
Posts: 3,191
Trader Rating: 10 (100%+)
Default

actually, the secret was the car oven. I went to walmart and purchased a cooler bag, just big enough to put our car into. and then I picked up one of those cup heater to keep your coffe cup warm. we would sauce our tires and then put it in to bake. they came out warm and tracktion baked in.

work great for me and tim
__________________
yang lai

Team Tamale | Team Tekin | RCAmerica | Speedmerchant | Speedzone RC | EA Motorsports | Ko Propo USA | eXpress Motorsports | Parma/PSE
theisgroup is offline   Reply With Quote
Old 11-13-2006, 08:06 PM   #21902
Tech Fanatic
 
tpczx6's Avatar
 
Join Date: Sep 2004
Posts: 828
Trader Rating: 3 (100%+)
Default

Quote:
Originally Posted by P2
Yang, your car was good in Mod, how did you get it dialed on that ice rink? My asphault car was horrible I don't know how the tie-breaker was decided

When I get my carpet chassis, some of us will make a road trip up to Dallas

Tim C. If you are out there, you better be ready

P2
let me know when you want to come up and I will check to see if Iam working or not. bring a few more peple with you and we can run a mod class. I have not been to Mike's in a long time

Tim C
__________________
RcAmerica--Xray---Hudy----KO PROPO USA---ORCA---GRAVITY RC
Motiv------Apexrc-----
SWEEP Racing USA
Mike's Hobbyshop in Dallas
Nor-Cal Hobbies [The Race Place]
tpczx6 is offline   Reply With Quote
Old 11-13-2006, 08:10 PM   #21903
P2
Tech Fanatic
 
P2's Avatar
 
Join Date: Aug 2003
Location: Oahu, Hi
Posts: 865
Trader Rating: 15 (100%+)
Default

Quote:
Originally Posted by tpczx6
let me know when you want to come up and I will check to see if Iam working or not. bring a few more peple with you and we can run a mod class. I have not been to Mike's in a long time

Tim C
Tim,

CarlosG, Jim Hartnet, and I want to do a road trip. I need a new chassis for carpet, when we are ready to come up I will let you know. Stock would be fun too.

Yang,
Thanks for the invite
Paul
__________________
TopRacingUSA | Team EPIC | Thunder Power | OD Racing
P2 is offline   Reply With Quote
Old 11-13-2006, 08:17 PM   #21904
Tech Fanatic
 
tpczx6's Avatar
 
Join Date: Sep 2004
Posts: 828
Trader Rating: 3 (100%+)
Default

Quote:
Originally Posted by P2
Tim,

CarlosG, Jim Hartnet, and I want to do a road trip. I need a new chassis for carpet, when we are ready to come up I will let you know. Stock would be fun too.

Yang,
Thanks for the invite
Paul
cool let us know and we will put out the word also you can stay at myplace if needed more on the way home for you
__________________
RcAmerica--Xray---Hudy----KO PROPO USA---ORCA---GRAVITY RC
Motiv------Apexrc-----
SWEEP Racing USA
Mike's Hobbyshop in Dallas
Nor-Cal Hobbies [The Race Place]
tpczx6 is offline   Reply With Quote
Old 11-13-2006, 10:13 PM   #21905
Tech Fanatic
 
Join Date: Jan 2004
Location: Colorado, Above The Rest
Posts: 992
Trader Rating: 2 (100%+)
Default

Quote:
Originally Posted by theisgroup
actually, the secret was the car oven. I went to walmart and purchased a cooler bag, just big enough to put our car into. and then I picked up one of those cup heater to keep your coffe cup warm. we would sauce our tires and then put it in to bake. they came out warm and tracktion baked in.

work great for me and tim
Oh no, here we go, everybody needs a toaster oven in their pits. And we're also going to have to deal with all of the "Who makes the best oven? " threads. Thanks guys
__________________
Team BSR
Team Power Push
Protoform Race Bodies
KSKT Racing - #1 in SK Racing Chassis
Darkside Motorsports - "WE ARE WHAT'S NEXT." - www.darksidems.com
THE DARKSIDE is offline   Reply With Quote
Old 11-14-2006, 01:43 AM   #21906
Tech Regular
 
Join Date: Mar 2005
Location: Veenendaal, The Netherlands
Posts: 478
Send a message via ICQ to _cyclops_
Default

Quote:
Originally Posted by Pro ten Holland
It might be strange getting advice from the one that placed dead-last in modified, but go for a stiffer center shock spring, and center shock oil.
If your car starts to traction roll on corner entry, coat the front tires outer sidewalls with CA.
Well you gave me that advice yes
Wonderful how ppl can meet irl and then online :-)

When i ran the harder spring i did find the car harder over the bumps... that's why i don't want to make it even harder......

I didn't even thank you for the support at the track, so thanks for all the help there!
_cyclops_ is offline   Reply With Quote
Old 11-14-2006, 02:59 AM   #21907
Tech Apprentice
 
Join Date: Oct 2006
Posts: 57
Default

Shooter #AS040 Shooters 7075-T6 Lowered Rear Bulkhead Set For RC12L3/L4.
A new Stuff from Shooters.finf here

http://www.racing11.net/shop/index.p...h=23_28_58_345
initialrays is offline   Reply With Quote
Old 11-14-2006, 07:56 AM   #21908
Tech Addict
 
radio_car_racer's Avatar
 
Join Date: Apr 2004
Posts: 543
Trader Rating: 1 (100%+)
Default Checkpoint 10x2

Checkpoint 10x2

tuning the motor for 12th

what's the hot ticket for these motors on IB42's

Last edited by radio_car_racer; 11-14-2006 at 08:08 AM.
radio_car_racer is offline   Reply With Quote
Old 11-14-2006, 08:01 AM   #21909
Tech Elite
 
theisgroup's Avatar
 
Join Date: Apr 2002
Posts: 3,191
Trader Rating: 10 (100%+)
Default

Quote:
Originally Posted by THE DARKSIDE
Oh no, here we go, everybody needs a toaster oven in their pits. And we're also going to have to deal with all of the "Who makes the best oven? " threads. Thanks guys
darkside, keep this between me and you. It was a sunbeam
__________________
yang lai

Team Tamale | Team Tekin | RCAmerica | Speedmerchant | Speedzone RC | EA Motorsports | Ko Propo USA | eXpress Motorsports | Parma/PSE
theisgroup is offline   Reply With Quote
Old 11-14-2006, 08:11 AM   #21910
Tech Elite
 
Grenade10's Avatar
 
Join Date: Nov 2003
Location: Fort Collins, Colorado
Posts: 4,667
Trader Rating: 37 (100%+)
Default

Quote:
Originally Posted by theisgroup
darkside, keep this between me and you. It was a sunbeam
Hey I drive one of those on the street! So do I need to drive the british sports car to the track with the Toaster Oven so that I can get my car to have traction on carpet, or should I use Jack the Gripper on the Sumbeam's tires??

Darkside take the tape to HT-FC they are out and I need some for Wednesday.

Hey what happened to you Sunday? I made the trip just to see your car run fast! RRR, PRC and myself had fun dodging moving speed dots!
__________________
Darkside, Sweep, BSR, Fantom, IGT Hobbies and IGT8
Byrons Fuel, ProtoForm Bodies & Futaba Radio Gear by Choice
Founding Member of CORRC .... 5280raceway
www.darksidems.com www.igthobbies.com www.IGT8.com
Grenade10 is offline   Reply With Quote
Old 11-14-2006, 08:16 AM   #21911
Tech Initiate
 
Join Date: Oct 2005
Location: Austria
Posts: 23
Send a message via MSN to chupstar1000
Default

can anyone send me a pm with a cheap shop for tires!!
thx a lot
chupstar1000 is offline   Reply With Quote
Old 11-14-2006, 02:29 PM   #21912
Tech Fanatic
 
Join Date: Jan 2004
Location: Colorado, Above The Rest
Posts: 992
Trader Rating: 2 (100%+)
Default

Quote:
Originally Posted by theisgroup
darkside, keep this between me and you. It was a sunbeam
Not a word to anyone, I promise.

Grenade - Got you covered on the tape. Sorry I couldn't make it down on Sunday, I was getting a lot of future projects out of the CAD world and to the machinist. Going to try be down for some laps tomorrow.

-E
__________________
Team BSR
Team Power Push
Protoform Race Bodies
KSKT Racing - #1 in SK Racing Chassis
Darkside Motorsports - "WE ARE WHAT'S NEXT." - www.darksidems.com
THE DARKSIDE is offline   Reply With Quote
Old 11-14-2006, 06:37 PM   #21913
Tech Elite
 
Customworksking's Avatar
 
Join Date: Oct 2004
Location: Springfield ILLINOIS
Posts: 3,535
Trader Rating: 69 (99%+)
Arrow speed 12-B

just done 1 more for the MX-12
Attached Thumbnails
1/12 forum-s4010196.jpg  
__________________
Team Xray | RC America| Hudy |Jaco |AKA
Customworksking is offline   Reply With Quote
Old 11-14-2006, 06:43 PM   #21914
Tech Elite
 
Customworksking's Avatar
 
Join Date: Oct 2004
Location: Springfield ILLINOIS
Posts: 3,535
Trader Rating: 69 (99%+)
Post MX_12

ok 1 more
Attached Thumbnails
1/12 forum-s4010197.jpg  
__________________
Team Xray | RC America| Hudy |Jaco |AKA
Customworksking is offline   Reply With Quote
Old 11-15-2006, 12:18 AM   #21915
Tech Champion
 
lbckevin's Avatar
 
Join Date: Jan 2003
Location: Orange County, CA
Posts: 5,442
Trader Rating: 82 (99%+)
Default

I like the second body alot.
__________________
Kevin Smith
Schuur Speed* Hobbywing * Pro-Line * MIP * Paint Monster Airbrushing * Schelle Racing
lbckevin 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 12:00 AM.


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

SEO by vBSEO 3.5.0