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 06-08-2004, 04:00 PM   #7951
Tech Addict
 
Join Date: Nov 2003
Location: Ridin my Harley
Posts: 707
Trader Rating: 3 (100%+)
Send a message via AIM to Adam Hartzell
Default

sounds great to me!! I think it would be great if me you and Doug could share a room. This would allow us to share ideas to make the Q12 faster.
Adam Hartzell is offline   Reply With Quote
Old 06-08-2004, 04:03 PM   #7952
Tech Elite
 
speedxl's Avatar
R/C Tech Charter Subscriber
 
Join Date: Jun 2003
Location: Portland Oregon.
Posts: 3,876
Default

I'll pm you my number so we can start the process for the birds give him a call later I already got him thinking about it!
__________________
Pemberton / R1 / All out motorsports / Team Power Push
speedxl is offline   Reply With Quote
Old 06-08-2004, 04:08 PM   #7953
Tech Addict
 
Join Date: Nov 2003
Location: Ridin my Harley
Posts: 707
Trader Rating: 3 (100%+)
Send a message via AIM to Adam Hartzell
Default

Its still 3-4 months away but I can't wait for carpet season. I will find my set-up from carpet nats and that should give you a good starting point for a really high bite track.
Adam Hartzell is offline   Reply With Quote
Old 06-08-2004, 04:12 PM   #7954
Tech Addict
 
Join Date: Nov 2003
Location: Ridin my Harley
Posts: 707
Trader Rating: 3 (100%+)
Send a message via AIM to Adam Hartzell
Default

speedxl--ygpm
Adam Hartzell is offline   Reply With Quote
Old 06-08-2004, 04:15 PM   #7955
Tech Elite
 
speedxl's Avatar
R/C Tech Charter Subscriber
 
Join Date: Jun 2003
Location: Portland Oregon.
Posts: 3,876
Default

Adam trust me I aint hurting but definatly we will work together to get the cars better.
I missed two qualifiers at this last birds and on the third one I started charging late because I was helping a newbie with his car and I didnt pay attention to the clock. well needless to say I was on a top 3 run for the main ( they were anoucing tq pace ) and I dump with 30 seconds to go.
in the wednesday club race I finishe 8th overall.

Ray haung will vouce for me If I could have should have deal! thats why next year an alrm clock with a 300 watt amplifier and 3 12 inch subwoofers and tweeters balaring out rise and shine meat head is in order!
__________________
Pemberton / R1 / All out motorsports / Team Power Push
speedxl is offline   Reply With Quote
Old 06-08-2004, 04:19 PM   #7956
Tech Addict
 
Join Date: Nov 2003
Location: Ridin my Harley
Posts: 707
Trader Rating: 3 (100%+)
Send a message via AIM to Adam Hartzell
Default

you won't need an alarm clock if I'm in the room. I think that I slept all of 5 hour during the week of Carpet Nats. Chances are I won't sleep during the birds because I will be running at least 2 classes. I only ran 1 at nats.
Adam Hartzell is offline   Reply With Quote
Old 06-08-2004, 04:23 PM   #7957
Tech Elite
 
speedxl's Avatar
R/C Tech Charter Subscriber
 
Join Date: Jun 2003
Location: Portland Oregon.
Posts: 3,876
Default

I ran 2 also but I goofed around for the first 3 days and when racing stared I was wore out. the scedule is grueling mike boylin I think mentioned something about sceduling the class for oval and onroad in a way that it doesnt kill everyone this year pluss it will allow for guys that run oval and road course to cross over and race both visa versa!
I talk to you later gotta go home!
__________________
Pemberton / R1 / All out motorsports / Team Power Push
speedxl is offline   Reply With Quote
Old 06-08-2004, 04:24 PM   #7958
Tech Addict
 
Join Date: Nov 2003
Location: Ridin my Harley
Posts: 707
Trader Rating: 3 (100%+)
Send a message via AIM to Adam Hartzell
Default

I forgot about oval. Count me in for 4 classes then!!!
Adam Hartzell is offline   Reply With Quote
Old 06-09-2004, 06:37 AM   #7959
Tech Regular
 
johnnywhopper's Avatar
 
Join Date: Apr 2003
Location: Rome, NY
Posts: 371
Default

4 classes at the birds.....you're nuts. plan on living off of caffeine tablets w/ chocolate covered coffee beans for desert. It's the only way you'll survive. And after it's all over, plan on taking a couple extra days off work, because you're going to sleep for about 48 hours straight.

or maybe i'm just a wuss. lol.


jw
__________________
Team CRC, Spektrum, Hobbywing, JDJ Vinyl Graphics, Moby Graphix, Black Art, Power Push
johnnywhopper is offline   Reply With Quote
Old 06-09-2004, 10:41 AM   #7960
Tech Elite
 
speedxl's Avatar
R/C Tech Charter Subscriber
 
Join Date: Jun 2003
Location: Portland Oregon.
Posts: 3,876
Default

no you aint a whuss i slept for 3 days!
__________________
Pemberton / R1 / All out motorsports / Team Power Push
speedxl is offline   Reply With Quote
Old 06-09-2004, 01:16 PM   #7961
Tech Regular
 
Join Date: Dec 2002
Posts: 389
Send a message via Yahoo to hicheef
Default New to 12th scale

Whats Up All,
I'm new to 12th scale but definitely not new to R/C. I just picked up an 12L4 to keep me busy over the winter and to keep the reflexs sharp for 1/8th scale. I've been reading through the earlier pages of this thread but was wondering if there were other good sources of info, Anything I must read/know for 12th scale. As well, where does everyone shop online??
I know......support my LHS....trust me I do but parts for this car tend to be sparce for now. I'm loking for a shop with good prices. I know about kthobbies
Thanks for your time and input

Kevin aka Leadfinger
hicheef is offline   Reply With Quote
Old 06-09-2004, 01:23 PM   #7962
Tech Elite
 
speedxl's Avatar
R/C Tech Charter Subscriber
 
Join Date: Jun 2003
Location: Portland Oregon.
Posts: 3,876
Default

http://www.southeastrc.com/Browse/Ki...=hgarcia&ad=hg



try these guys they are cheaper then tower they will beat thier prices on mostly everything ask for jim search their site if its not on there they will get it like yesterday and they stock a ton of 12 scale stuff.
__________________
Pemberton / R1 / All out motorsports / Team Power Push
speedxl is offline   Reply With Quote
Old 06-10-2004, 12:02 PM   #7963
Tech Fanatic
 
fast-ho-cars's Avatar
 
Join Date: Sep 2003
Location: it's a dry heat
Posts: 781
Default

maybe cheaper that TOWER Hobbies but southeastrc is higher than most other sites

they have 299 on a CRC 3.2 CK......you can get it direct from CRC for 225

KThobbies.com beats them on all of their other 12th kit posted prices.....AE 12L4. Relfex 12.......etc.......
fast-ho-cars is offline   Reply With Quote
Old 06-10-2004, 01:56 PM   #7964
Tech Elite
 
speedxl's Avatar
R/C Tech Charter Subscriber
 
Join Date: Jun 2003
Location: Portland Oregon.
Posts: 3,876
Default

dude this isnt a biding war now on the best hobby store If you call in they will match the prices of anybody pluss I doubt they are making anything on that, unless they have a direct hookup.
but hey nice c0@k block!
I was just helping a rc bro out to locate parts for his car
__________________
Pemberton / R1 / All out motorsports / Team Power Push
speedxl is offline   Reply With Quote
Old 06-10-2004, 05:37 PM   #7965
Tech Master
 
EricF's Avatar
 
Join Date: Jun 2003
Location: AZ
Posts: 1,515
Default

Quote:
Originally posted by speedxl
.
but hey nice c0@k block!
XL - you may want to re-check the use of that term... I think that you may be using it incorrectly...

do you know if the Bowser brothers, Robert and Dave (not sure if the correct last name) are ever on here? One drive a XXXS and the other a Xray I beleive. there big guys like yourself.

thanks,
Eric
__________________
<
AE 12R5.2 (x2) - TC7 - M05 - M05V2R

People who don't have to wait for the latest item, should not tell those that do, that "It's worth the wait"
EricF 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: 3 (1 members and 2 guests)
amuse
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 03:17 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