R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 02-13-2010, 10:40 PM   #1
Tech Rookie
 
Join Date: Feb 2010
Posts: 3
Default Trinity Duo II 13.5 brushless motor, 2s lipo, what spur and pinion?

I have a Tamiya evo IV. Has a Trinity Duo II 13.5 motor. I am interested in racing the 13.5 class, but do not know the best spur and pinion to run. I will be running a 2s thunder power lipo. Any suggestions?
Thanks
Alex Nielsen is offline   Reply With Quote
Old 02-14-2010, 07:05 AM   #2
Tech Elite
 
2056dennis's Avatar
 
Join Date: Mar 2007
Location: michigan
Posts: 2,470
Trader Rating: 126 (100%+)
Default help

Alex in order for you to get the help you need we would half to know what size of track and is it carpet or asphalt and are you racing oval or onroad and it would help to know what esc you are useing , good luck
__________________
CRC Gen XL / Xray 09 , t2r pro / CW sprint and CW rocket / Kyosho evolva m3 / Tekin rs / Futaba 4pks / Trinity / Dirtburners thanks Bill / 1/8th racers of Toledo / Trex chassi / Summit Race way / Stateline
LAZER SPEEDWAY where all else IS just a parking lot / Hobby Stop West Raceway
2056dennis is offline   Reply With Quote
Old 02-14-2010, 10:08 AM   #3
Tech Adept
 
Join Date: Jul 2008
Location: Hong Kong
Posts: 233
Default

Quote:
Originally Posted by Alex Nielsen View Post
I have a Tamiya evo IV. Has a Trinity Duo II 13.5 motor. I am interested in racing the 13.5 class, but do not know the best spur and pinion to run. I will be running a 2s thunder power lipo. Any suggestions?
Thanks
In general for 13.5:
Small track, fdr ~ 4.8 to 5.2
Large track, fdr ~ 5.5 to 6.0
hardmankam is offline   Reply With Quote
Old 02-15-2010, 12:08 AM   #4
Tech Rookie
 
Join Date: Feb 2010
Posts: 3
Default

Thanks for getting back. I will be racing onroad (not oval) and asphalt. what would be the correct sizes for both large and small track. Good to probably have all the best sizes on hand anyway.
Alex Nielsen is offline   Reply With Quote
Old 02-15-2010, 12:09 AM   #5
Tech Rookie
 
Join Date: Feb 2010
Posts: 3
Default

Forgot to mention, the esc is the new Tekin RS Pro.
Alex Nielsen is offline   Reply With Quote
Old 03-01-2010, 01:56 AM   #6
Tech Rookie
 
Join Date: Feb 2010
Posts: 12
Default FDR

I read this and ask myself where you guys bring tyre diameter into the equation? Unless you use rubber tyres and the size is always the same. We use foam tyres and they get smaller after every run and therefor use a different way to calculate. We call it rollout rather than FRD. Now that I see how it is calculated I realize the difference.
Pilotloots 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 06:12 AM.


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