R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 01-20-2003, 11:37 AM   #1
Tech Fanatic
 
Aluma's Avatar
 
Join Date: Feb 2002
Location: Edinburg TX
Posts: 835
Trader Rating: 1 (100%+)
Default Gearing/Battery Time/Motor Temp

okay...so here my statement...correct me if I'm wrong.

I need to gear my car with a stock motor so that I use up as much of the battery as possible in 5 mins without dumping while still maintaining a decent temperature on the motor.


So, if I have like 2mins left on the pack when i discharge it, and my motor isnt hot... should i keep gearing up? Also, since I have a 48p spur and pinion made by tamiya, the largest i can go is 61/25 cuz they dont make a 26 pinion. should i just spur down?
Aluma is offline   Reply With Quote
Old 01-20-2003, 11:49 AM   #2
Tech Apprentice
 
Join Date: Nov 2002
Location: Cypress, CA
Posts: 75
Default

With the high capacity batteries available it is very unlikely you could possibly dump them with a stock motor in 5 minutes.

IHMO just gear for the track. If you monitor your motor temp and lap times there is a point at which adding one pinion tooth causes the motor to overheat and your lap times to drop. At that point just drop back one tooth.

BTW.. Changing the spur is a much bigger change than one pinion tooth. Change the pinion too so you get a change closer to one pinion tooth
dalem is offline   Reply With Quote
Old 01-20-2003, 12:07 PM   #3
Tech Fanatic
 
Aluma's Avatar
 
Join Date: Feb 2002
Location: Edinburg TX
Posts: 835
Trader Rating: 1 (100%+)
Default

actually i am at that point with my MF XXX-T. my matched 2400's are dumping right before i get to the finish on a lightspeed P2k with 86/20 gearing.

my touring car is different... got a revenge monster with 61/25 gearing ...but the motor is still cool after the 5mins and the pack has bunch of time left on it. Its super fast but two guys are still a little faster. I need a 26 or 27 tooth pinion, but tamiya dont make it. RATS!
Aluma is offline   Reply With Quote
Old 01-20-2003, 01:40 PM   #4
Tech Apprentice
 
Join Date: Nov 2002
Location: va beach va.
Posts: 60
Post pinion????

You can buy another brand of pinion Kimbro, Roberson, losi, associated, as long as you match the pitch of the gears. ie- 48/
64/ 32/, kindwall pitch which I belive is 54/ pitch they will run fine. , as for the MF XXX-T drop to a 18 or 19 was that too hard I don't know how big your track is but this should get you the time you need to finish the race with 2400's I've been racin for 17 years we started with 1200's this is where knowing how to gear realy paid off, because we ran stock motors with timing 36 to 40 degrees this would dump battery 45 seconds before 4 min. yes we ran 4 min. back then.

Last edited by bubbaicm; 01-20-2003 at 01:50 PM.
bubbaicm is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Run Time + Gearing ?? bullfrog_racer Electric On-Road 5 10-17-2007 12:33 PM
motor, esc and battery temp diozxlive Electric On-Road 10 09-04-2007 11:11 PM
How much run time would i get from a 3300mah battery w/a stock motor ? thahookup Rookie Zone 6 05-16-2006 11:43 PM
Gearing up Temp effects and plugs BrainTeased Onroad Nitro Engine Zone 4 12-03-2004 04:12 AM
I am new to this place and i have some Motor and battery time The Newbie... Electric Off-Road 10 07-23-2004 07:25 AM



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 01:34 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net