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 03-29-2011, 08:19 AM   #35686
Tech Elite
 
VooDooPH's Avatar
 
Join Date: Feb 2006
Location: Philippines
Posts: 3,714
Trader Rating: 18 (100%+)
Send a message via Yahoo to VooDooPH
Default

Quote:
Originally Posted by andrewdoherty View Post
I have only run about 5 or 6 packs in a mod 12th recently, but hot esc and cooler motor has been my experience too with an RS Pro.
Quote:
Originally Posted by sdunnmcp View Post
I usually run 96/23
Quote:
Originally Posted by RedBullFiXX View Post
My 12R5 has a MurfDogg 4t with a Tekin RS (not RS Pro) at 42 roll in Dual Mode.
Endbell at zero deg.
Motor and esc after 8mins never over 100f
Tekin internal temp light at 1st mark.
It is very smooth and has tons of rip.

This is on Hi-Bite carpet 90x45 track.
Thanks for the feedback.
Andrew, what RO are you using?

here's a vid of the track we play at... not quite sure how long the back straight is... maybe 40ft?

http://www.youtube.com/watch?v=LLGzU4eZnFM

also, i assume you guys are running rx packs with your RS'... care to show pix on how its wired?

Thanks!
__________________
[TRF418][TB-04Pro][FF-03Pro][M-05v2][TRF102][F-104 WGP][TT-01R TypeE]
[Cross CF-01'08][Yokomo R12][Team C TC02Evo][Team C T8E v3]
VooDooPH is offline   Reply With Quote
Old 03-29-2011, 11:22 AM   #35687
Tech Champion
 
RedBullFiXX's Avatar
R/C Tech Elite Subscriber
 
Join Date: Mar 2003
Location: Intergalactic Planetary
Posts: 6,539
Trader Rating: 34 (100%+)
Default

Quote:
Originally Posted by VooDooPH View Post
Thanks for the feedback.
Andrew, what RO are you using?

here's a vid of the track we play at... not quite sure how long the back straight is... maybe 40ft?

http://www.youtube.com/watch?v=LLGzU4eZnFM

also, i assume you guys are running rx packs with your RS'... care to show pix on how its wired?

Thanks!
I'm still running the same RS & TQ Booster since I built the car new about 2 yrs ago.
Works great.
__________________
--> 12th scale Information Source <--

"Men do not quit playing because they grow old; they grow old because they quit playing."
― Oliver Wendell Holmes Jr.
RedBullFiXX is offline   Reply With Quote
Old 03-29-2011, 12:48 PM   #35688
avs
Tech Master
 
avs's Avatar
 
Join Date: Jul 2006
Posts: 1,144
Trader Rating: 2 (100%+)
Default

Quote:
Originally Posted by RedBullFiXX View Post
My 12R5 has a MurfDogg 4t with a Tekin RS (not RS Pro) at 42 roll in Dual Mode.
Endbell at zero deg.
Motor and esc after 8mins never over 100f
Tekin internal temp light at 1st mark.
It is very smooth and has tons of rip.

This is on Hi-Bite carpet 90x45 track.
hey Dave, is that with 1 or 2 caps installed?
__________________
Tony Shimko
avs is offline   Reply With Quote
Old 03-29-2011, 01:40 PM   #35689
Tech Champion
 
RedBullFiXX's Avatar
R/C Tech Elite Subscriber
 
Join Date: Mar 2003
Location: Intergalactic Planetary
Posts: 6,539
Trader Rating: 34 (100%+)
Default

Quote:
Originally Posted by avs View Post
hey Dave, is that with 1 or 2 caps installed?
I haven't put the 2nd cap on yet, i will try and get that installed this week.
__________________
--> 12th scale Information Source <--

"Men do not quit playing because they grow old; they grow old because they quit playing."
― Oliver Wendell Holmes Jr.
RedBullFiXX is offline   Reply With Quote
Old 03-29-2011, 02:38 PM   #35690
Tech Rookie
 
Carpet Steve's Avatar
 
Join Date: Feb 2011
Posts: 3
Thumbs up Hey CH Racers

I will be on vacation the weekend of the 31st. Not sure if I will be back in time to go racing on Sunday but I wil try. Another friend of mine has just finished his car and will be out this weekend also if at all possible. Things are lookin up for 12th scale @ CH!
Carpet Steve is offline   Reply With Quote
Old 03-29-2011, 04:42 PM   #35691
Tech Elite
 
andrewdoherty's Avatar
 
Join Date: Jan 2005
Location: ★Wylie, TX★
Posts: 3,763
Trader Rating: 47 (100%+)
Default

Quote:
Originally Posted by VooDooPH View Post
Thanks for the feedback.
Andrew, what RO are you using?

here's a vid of the track we play at... not quite sure how long the back straight is... maybe 40ft?

http://www.youtube.com/watch?v=LLGzU4eZnFM

also, i assume you guys are running rx packs with your RS'... care to show pix on how its wired?

Thanks!
I don't know the RO, but I was running an ancient 4.5 Trinity with no timing adjustments on it. I had it geared 28/88 with 41 mm tires and one cap on the esc.
__________________
"Whether you think you can, or think you can't, you're right." -Henry Ford
"[Driving] Genius is 1% inspiration, and 99% perspiration" -T.A. Edison
|◤Hobbywing◢|◤SpeedzoneUSA.com◢|◤Pro-One◢|
|◤ReflexRacing.net◢|◤Protoform◢|◤AVID R/C◢|
andrewdoherty is offline   Reply With Quote
Old 03-29-2011, 07:35 PM   #35692
Tech Champion
 
RedBullFiXX's Avatar
R/C Tech Elite Subscriber
 
Join Date: Mar 2003
Location: Intergalactic Planetary
Posts: 6,539
Trader Rating: 34 (100%+)
Default

Quote:
Originally Posted by andrewdoherty View Post
I don't know the RO, but I was running an ancient 4.5 Trinity with no timing adjustments on it. I had it geared 28/88 with 41 mm tires and one cap on the esc.
40.98mm
__________________
--> 12th scale Information Source <--

"Men do not quit playing because they grow old; they grow old because they quit playing."
― Oliver Wendell Holmes Jr.
RedBullFiXX is offline   Reply With Quote
Old 03-29-2011, 08:46 PM   #35693
Tech Regular
 
Join Date: Jul 2007
Location: Proper beer garden over looking the beach :-)
Posts: 478
Trader Rating: 2 (100%+)
Default servos

Quick question, what servos are people running/recomend? Thanks.
__________________
www.serpent.com / www.novarossi.it / www.kopropo.com / www.racekbrl.com / redrock hobbies / one hobbies / Fear Farm / www.scottsdalercspeedway.com / www.clinehobbies.com / www.glitchrc.com / www.cornishpastyco.com
Brodie-72 is offline   Reply With Quote
Old 03-29-2011, 09:17 PM   #35694
Tech Champion
 
JayBee's Avatar
 
Join Date: Mar 2004
Location: 12TH-MAN COUNTRY
Posts: 6,803
Trader Rating: 31 (100%+)
Default

Futaba S9650 = lightning fast
__________________
R C 3 G R A F I X _ F U S I O N . G R A P H I X _ S E A T T L E - R/C - R A C E R S _ E M E R A L D C I T Y R C . C O M

A E - 12R5.2 _ S M - REV8 PRO
JayBee is offline   Reply With Quote
Old 03-29-2011, 09:20 PM   #35695
Tech Lord
 
wingracer's Avatar
 
Join Date: Nov 2007
Posts: 12,638
Trader Rating: 21 (100%+)
Default

Quote:
Originally Posted by JayBee View Post
Futaba S9650 = lightning fast
+1. Also KO and JR make good ones. I would avoid HiTec and Airtronics for this one.
__________________
Sean. Certified speed crazed mowron.
Team Shepherd USA
www.ashfordhobby.com
wingracer is offline   Reply With Quote
Old 03-29-2011, 09:21 PM   #35696
Tech Elite
 
peter_robinson's Avatar
 
Join Date: Dec 2002
Location: On the Lake
Posts: 3,206
Trader Rating: 21 (100%+)
Default

Quote:
Originally Posted by Brodie-72 View Post
Quick question, what servos are people running/recomend? Thanks.
Savox can't be beat in quality or price point. 1350 or 1250 depending on whether you want plastic or metal gears. If you don't dig the orange anodizing, pick up a spektrum, they are they same servo under different names.
__________________
For orders or inquiries, email sales@rc-trim.com. Follow RC-Trim on Twitter and Facebook

RC-Trim | Serpent USA | On-Point | Trinity | Revtech | ORCA | BSR | KO Propo | PT RC Racing Oil | WTRC | rcpitwhores.com
peter_robinson is offline   Reply With Quote
Old 03-30-2011, 12:10 AM   #35697
Tech Master
 
Me_MrTyson's Avatar
 
Join Date: Nov 2009
Posts: 1,801
Trader Rating: 11 (100%+)
Send a message via MSN to Me_MrTyson Send a message via Skype™ to Me_MrTyson
Default

Quote:
Originally Posted by wingracer View Post
Yeah it will really depend on the track but pink rears usually work very well. I would get a set of magentas and yellows (or grey low/orange) to try out as well.

For front, get a set of blacks, magentas and double pinks to try out.

Some combo of those should work on 90% of tracks. If you are used to lilac fronts, you will probably need to take some dual rate out of the steering to settle the car down but this is a good thing.
Been using Magenta and pink combo makes the car feel good.. also Magenta and Magenta..

Has anyone tried this combo on an outdoor track? or is there a good combo which works good on an outdoor track
__________________
v-dezign // black diamond

Hoot RC for Local Supplies > www.hootrc.com.au
Me_MrTyson is offline   Reply With Quote
Old 03-30-2011, 12:49 AM   #35698
Tech Elite
 
andrewdoherty's Avatar
 
Join Date: Jan 2005
Location: ★Wylie, TX★
Posts: 3,763
Trader Rating: 47 (100%+)
Default

Quote:
Originally Posted by RedBullFiXX View Post
40.98mm
Show off. I was just being lazy.
__________________
"Whether you think you can, or think you can't, you're right." -Henry Ford
"[Driving] Genius is 1% inspiration, and 99% perspiration" -T.A. Edison
|◤Hobbywing◢|◤SpeedzoneUSA.com◢|◤Pro-One◢|
|◤ReflexRacing.net◢|◤Protoform◢|◤AVID R/C◢|
andrewdoherty is offline   Reply With Quote
Old 03-30-2011, 07:19 AM   #35699
Tech Elite
 
theisgroup's Avatar
 
Join Date: Apr 2002
Posts: 3,191
Trader Rating: 10 (100%+)
Default

Quote:
Originally Posted by andrewdoherty View Post
Show off. I was just being lazy.
i have a spreadsheet that you can use to calculate rollout on your phone. oh yeah, you have a iPhone. lol
__________________
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 03-30-2011, 11:09 AM   #35700
Tech Champion
 
RedBullFiXX's Avatar
R/C Tech Elite Subscriber
 
Join Date: Mar 2003
Location: Intergalactic Planetary
Posts: 6,539
Trader Rating: 34 (100%+)
Default

Quote:
Originally Posted by andrewdoherty View Post
Show off. I was just being lazy.
Quote:
Originally Posted by theisgroup View Post
i have a spreadsheet that you can use to calculate rollout on your phone. oh yeah, you have a iPhone. lol
Hey, any chance I get to go to Gearchart.com to hear that awesome music, is worth it
__________________
--> 12th scale Information Source <--

"Men do not quit playing because they grow old; they grow old because they quit playing."
― Oliver Wendell Holmes Jr.
RedBullFiXX 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: 2 (1 members and 1 guests)
Bubonic-X
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 09:00 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