R/C Tech Forums

Go Back   R/C Tech Forums > General Forums > Electric On-Road

Like Tree8Likes
Reply
 
Thread Tools Search this Thread
Old 07-19-2016, 02:54 AM   #16
Tech Regular
R/C Tech Elite Subscriber
 
Join Date: Feb 2015
Location: Ankeny, IA
Posts: 435
Trader Rating: 24 (100%+)
Default

Bringing this back from the dead... Anyone have experience with the JFT S foams, and suggestions on which shore for the grey crc carpet? Was thinking of starting with 35/35?
fenton06 is offline   Reply With Quote
Old 07-19-2016, 03:11 AM   #17
Tech Regular
 
antlockyer's Avatar
 
Join Date: Mar 2016
Location: South Coast of England
Posts: 250
Default

Both Dave Spashett and Ollie Payne used S35 front and rear at Chesterfield this weekend.
antlockyer is offline   Reply With Quote
Old 07-19-2016, 09:24 AM   #18
Tech Master
 
Join Date: Oct 2011
Location: Boulder, CO
Posts: 1,758
Trader Rating: 15 (100%+)
Default

Quote:
Originally Posted by fenton06 View Post
Bringing this back from the dead... Anyone have experience with the JFT S foams, and suggestions on which shore for the grey crc carpet? Was thinking of starting with 35/35?
S35 fronts and S30 rears are a good combination to start with on the CRC grey carpet. If it feels like the car has too much steering, go to the S35 rears.

Fair warning - the S compound tires are incredible on the old CRC carpet.
__________________
Chris Hillier | 5280 Raceway | www.5280raceway.com | Racing. Elevated.

Destiny | LRP America | Protoform | Xenon/JFT | Gravity RC | Motiv | Sanwa | Max.FX
LloydLoar is offline   Reply With Quote
Old 07-19-2016, 09:53 AM   #19
Tech Elite
 
JimmyMac's Avatar
 
Join Date: Oct 2001
Location: NC
Posts: 4,443
Trader Rating: 2 (100%+)
Default

What class? 13.5 or 17.5 I would say Green rear and Blue fronts. In my testing BSR Green rear and Blue fronts were faster, but not all CRC grey carpet is created equal. We have since moved to CRC Black and the S compound works great.
__________________
M.J. McIntyre

Yokomo YRX12
Tamiya TB03
JimmyMac is offline   Reply With Quote
Old 07-19-2016, 11:25 AM   #20
Tech Regular
R/C Tech Elite Subscriber
 
Join Date: Feb 2015
Location: Ankeny, IA
Posts: 435
Trader Rating: 24 (100%+)
Default

Quote:
Originally Posted by LloydLoar View Post
Fair warning - the S compound tires are incredible on the old CRC carpet.
That's the goal!!!
fenton06 is offline   Reply With Quote
Old 07-19-2016, 02:06 PM   #21
Tech Elite
 
CristianTabush's Avatar
 
Join Date: Oct 2002
Location: Houston
Posts: 2,834
Trader Rating: 11 (100%+)
Default

FWIW, at our place, on grey carpet the S compound does not work. They get too tacky.

However, the C Compound is magic. From my experience the higher the humidity, the less effective the S compound becomes.
__________________
REFLEX RACING/ RSD/ GIZMO RACING USA/ HOBBYWING/ AXON/ QTEQ/ TEAM PRIME
CristianTabush is offline   Reply With Quote
Old 07-19-2016, 02:10 PM   #22
Tech Regular
R/C Tech Elite Subscriber
 
Join Date: Feb 2015
Location: Ankeny, IA
Posts: 435
Trader Rating: 24 (100%+)
Default

Quote:
Originally Posted by CristianTabush View Post
FWIW, at our place, on grey carpet the S compound does not work. They get too tacky.

However, the C Compound is magic. From my experience the higher the humidity, the less effective the S compound becomes.
I am open to all options! I'm planning on ordering them from you, but I do not see the C foams on your site. What shore ratings for the C compound would you recommend Cristian?
fenton06 is offline   Reply With Quote
Old 07-19-2016, 02:57 PM   #23
Tech Addict
 
Jorge T's Avatar
 
Join Date: Mar 2011
Location: At a chemical plant in TX
Posts: 528
Trader Rating: 13 (100%+)
Default

JFT makes rear C25 yellow, C30 green and C35 light blue.
Front C30, C35 and C40 dark blue
I run mostly 13.5 and use C25 rear C30 front when traction is low on our old CRC grey.
Rear S25 yellow and frt C30 green work almost as good.
I also like A32 magenta fronts with S or C25 yellow rears or C30 when the bite comes up.
S30 or S35 will work for 6 laps and then get tacky and become undrivable, like C.T. posted.
__________________
RSD
Jorge T is offline   Reply With Quote
Old 07-19-2016, 04:07 PM   #24
Tech Elite
 
CristianTabush's Avatar
 
Join Date: Oct 2002
Location: Houston
Posts: 2,834
Trader Rating: 11 (100%+)
Default

Quote:
Originally Posted by fenton06 View Post
I am open to all options! I'm planning on ordering them from you, but I do not see the C foams on your site. What shore ratings for the C compound would you recommend Cristian?
C30 R and C35F works almost anywhere. If I was going somewhere, this is what I would bring. Question is what are the track conditions? Do tires get tacky? Does anything work at your track?
CristianTabush is offline   Reply With Quote
Old 07-19-2016, 04:09 PM   #25
Tech Elite
 
CristianTabush's Avatar
 
Join Date: Oct 2002
Location: Houston
Posts: 2,834
Trader Rating: 11 (100%+)
Default

Quote:
Originally Posted by SLOWINSLOWOUT View Post
Do you know if the Yokomo CRT tires are the same as the JFT C foam?
Not from my knowledge. Jft C compound has only been available from JFT from my knowledge, even my Japanese buddy had never seen them before here. JFT is not very popular in Japan because they are expensive over there. Most people mount their own foam in Japan in his part of the country.
CristianTabush is offline   Reply With Quote
Old 07-19-2016, 08:34 PM   #26
Tech Regular
R/C Tech Elite Subscriber
 
Join Date: Feb 2015
Location: Ankeny, IA
Posts: 435
Trader Rating: 24 (100%+)
Default

Quote:
Originally Posted by CristianTabush View Post
C30 R and C35F works almost anywhere. If I was going somewhere, this is what I would bring. Question is what are the track conditions? Do tires get tacky? Does anything work at your track?
My fastest lap times were on the CRC spec tires after being told they wouldn't work. I typically run CRC greylows in the rear and chromes in the front. My tires haven't gotten tacky as far as I can remember, but it's been awhile since I've been able to drive my 1/12 unfortunately. Looking to get a bunch of different tires and seeing what works!
fenton06 is offline   Reply With Quote
Old 07-20-2016, 11:47 PM   #27
Tech Regular
 
Join Date: Jun 2007
Posts: 322
Default

Quote:
Originally Posted by fenton06 View Post
My fastest lap times were on the CRC spec tires after being told they wouldn't work. I typically run CRC greylows in the rear and chromes in the front. My tires haven't gotten tacky as far as I can remember, but it's been awhile since I've been able to drive my 1/12 unfortunately. Looking to get a bunch of different tires and seeing what works!
If you run Stock, don't get a bunch. Most races next year will be spec tire.
sdunnmcp is offline   Reply With Quote
Old 07-21-2016, 02:00 AM   #28
Tech Regular
R/C Tech Elite Subscriber
 
Join Date: Feb 2015
Location: Ankeny, IA
Posts: 435
Trader Rating: 24 (100%+)
Default

Quote:
Originally Posted by sdunnmcp View Post
If you run Stock, don't get a bunch. Most races next year will be spec tire.
AFAIK, my normal track won't be running spec tires. Thanks though!
fenton06 is offline   Reply With Quote
Old 09-10-2016, 01:47 PM   #29
Tech Initiate
 
Join Date: Sep 2016
Posts: 21
Default

Quote:
Originally Posted by CristianTabush View Post
Not from my knowledge. Jft C compound has only been available from JFT from my knowledge, even my Japanese buddy had never seen them before here. JFT is not very popular in Japan because they are expensive over there. Most people mount their own foam in Japan in his part of the country.
JFT tire is not expensive tire in Japan. Actually it is one of low cost tire in Japan but Japanese RC driver is more to religious side. If you use Yokomo car then they use Yokomo tire, if you use CRC then they use Kimihiko tire because they follow Factory driver set up. Factory driver are like Guru in Japanese RC market
Teru is offline   Reply With Quote
Old 09-11-2016, 08:01 AM   #30
Tech Fanatic
 
SLOWINSLOWOUT's Avatar
 
Join Date: Dec 2011
Location: West Kelowna, BC
Posts: 829
Trader Rating: 19 (100%+)
Default

I see that JFT has released a new compound, the 'R'. Does anyone have any info on this? Still looking for a compound that works well, tried the 'C', and it just got very gummy, was great for the first minute, but after that, undrivable. This is for the grey CRC carpet, using SXT 3.0. Is there a different odorless sauce that works better with these tires maybe?
__________________
_____________________________________
Earl Towson
Team RC America - Xray USA - Hudy USA - Motiv RC - Max Power - Gravity RC - Prolevel RC - GRIPWORKS RC
WCICS.ca club rep. www.krcracing.ca
SLOWINSLOWOUT is offline   Reply With Quote
Reply



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 12:58 AM.


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