R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 04-09-2003, 12:49 PM   #1
Tech Apprentice
 
Join Date: Dec 2001
Posts: 90
Send a message via ICQ to Lerlo
Default New Tamiya Motors

Hi, anybody had experiences with the new line of tamiya motors?
Any Idea what kinda ratio i should run it at?
I have burned 3 type Ts up already. all running around 6.5 to 7.2.
but if i run it anywhere under 6..it gets really hot after 2mins of runtime.....
Lerlo is offline   Reply With Quote
Old 04-09-2003, 12:59 PM   #2
Tech Fanatic
 
glide 1's Avatar
 
Join Date: Feb 2002
Location: Cebu City, Philippines
Posts: 760
Default Tamiya Motors

Hi Lerlo,

We run those motors regularly over here geard up to 5.8 ratios, some even go as high as 5.5!! never heard of burnt motors so far
glide 1 is offline   Reply With Quote
Old 04-09-2003, 03:42 PM   #3
Tech Champion
 
JDM_DOHC_SiR's Avatar
 
Join Date: Aug 2002
Location: Chula Vista, CA
Posts: 9,070
Trader Rating: 31 (100%+)
Default Re: New Tamiya Motors

Quote:
Originally posted by Lerlo
Hi, anybody had experiences with the new line of tamiya motors?
Any Idea what kinda ratio i should run it at?
I have burned 3 type Ts up already. all running around 6.5 to 7.2.
but if i run it anywhere under 6..it gets really hot after 2mins of runtime.....
I don't use the T's but I use the R and RR's and I know for a fact that you can gear them pretty High...being a little warm to touch isn't a problem...but you should take a look at the Comm and the Brushes just to make sure...... I have seen the T's geared in the 4.95~5.5 Range without a problem

-Dave
__________________
Ȼ4.5 Centro+α ◊ TRF 501ӽ ◊ TRF 502ӽs ◊ TRF 503 ◊ TRF 511 ◊ TRF 201ӽr ◊ TRF 211ӽ
B5m ◊ T5m ◊SC5m ◊ B64deez nutz
Speedway PAL ◊ SDRC ◊ Shop UFO ◊ SMC
JDM_DOHC_SiR is offline   Reply With Quote
Old 04-09-2003, 07:34 PM   #4
Tech Apprentice
 
Join Date: Dec 2001
Posts: 90
Send a message via ICQ to Lerlo
Default

hmmmm, maybe its made for low ratios then....i ran them at 7+ mostly.......
so in this case i can safely say that it would be alright running the type S on my f201 with the high speed gears?
Lerlo is offline   Reply With Quote
Old 04-09-2003, 09:57 PM   #5
Tech Adept
 
Iso Octane's Avatar
 
Join Date: Mar 2002
Location: Toronto, Canada
Posts: 111
Default Re: Re: New Tamiya Motors

Quote:
Originally posted by JDM_DOHC_SiR
I have seen the T's geared in the 4.95~5.5 Range without a problem
6.39 is what I'm geared at with my Type T. After a run, you can fry an egg on it. So, really I don't know.
Iso Octane is offline   Reply With Quote
Old 04-10-2003, 11:14 AM   #6
Tech Master
 
Alvin's Avatar
 
Join Date: Aug 2001
Location: Singapore, Jurong East
Posts: 1,654
Default

Undergearing could cause the motor to spin at max rpm for long periods of time, hence greater heat generation. Yes, like the rest I found the RRs actually perform better at the 5.5 region (TL01); 5.9:1 the motor came back pretty hot, at at the 6.5:1 ratio, my 3k pack did not make 5 minutes.

I would like to note however, that the R comes with a pretty stiff spring. My other modified 23t motors that come with lighter springs do not go well with such a high ratio, prefering the 6 plus range.

Lerlo: For the F201 I do not udnerstand the bloody car. I geared it with quite a few ratios they all heat up the motor very rapidly, and the car takes a very long while to dissipates the heat. Annoying....
Alvin is offline   Reply With Quote
Old 04-10-2003, 11:23 AM   #7
Tech Fanatic
 
davioh's Avatar
 
Join Date: Mar 2003
Location: hong kong
Posts: 778
Default

im confused about the gear ratio...is it spur divided by pinion? is that what u guys are talking about?
davioh is offline   Reply With Quote
Old 04-10-2003, 11:28 AM   #8
Tech Master
 
Alvin's Avatar
 
Join Date: Aug 2001
Location: Singapore, Jurong East
Posts: 1,654
Default

Final Drive = ( Spur / Pinion ) X Transmission Ratio

So e.g. my 414 to run 5.7:1 final drive is

( 115 / 43 ) X 2.133 = 5.7
Alvin is offline   Reply With Quote
Old 04-10-2003, 11:29 AM   #9
Tech Fanatic
 
davioh's Avatar
 
Join Date: Mar 2003
Location: hong kong
Posts: 778
Default

whats the transmission ratio of an evo 3?
davioh is offline   Reply With Quote
Old 04-10-2003, 11:32 AM   #10
Tech Master
 
Alvin's Avatar
 
Join Date: Aug 2001
Location: Singapore, Jurong East
Posts: 1,654
Default

I would guess it is 2.6:1, if it uses the same stuff as a TB01, TB Evo? Check with the Evo 3 thread: I am pretty out of touch with the r/c world in general. Imagine my chargrin when ppl tell me about TA04 TRF. I thought it was a joke lol.
Alvin is offline   Reply With Quote
Old 04-10-2003, 11:32 AM   #11
Tech Master
 
Alvin's Avatar
 
Join Date: Aug 2001
Location: Singapore, Jurong East
Posts: 1,654
Default

BTW you can check your manual; there should be a section stating down the ratios achievable by a particular spur/pinion combo. Since you know the spur, pinion size and final drive, just do a bit of maths to get the transmission ratio.
Alvin is offline   Reply With Quote
Old 04-10-2003, 11:34 AM   #12
Tech Fanatic
 
davioh's Avatar
 
Join Date: Mar 2003
Location: hong kong
Posts: 778
Default

oh rite...that thing...thanks alvin
davioh is offline   Reply With Quote
Old 04-10-2003, 11:35 AM   #13
Tech Fanatic
 
davioh's Avatar
 
Join Date: Mar 2003
Location: hong kong
Posts: 778
Default

spur = 96
pinion = 39
final = 6.40

Last edited by davioh; 04-11-2003 at 05:18 AM.
davioh is offline   Reply With Quote
Old 04-10-2003, 04:57 PM   #14
Tech Champion
 
JDM_DOHC_SiR's Avatar
 
Join Date: Aug 2002
Location: Chula Vista, CA
Posts: 9,070
Trader Rating: 31 (100%+)
Default Re: Re: Re: New Tamiya Motors

Quote:
Originally posted by Iso Octane
6.39 is what I'm geared at with my Type T. After a run, you can fry an egg on it. So, really I don't know.
Try out about a 5.8~6.0 range and see how it performs...
Almost every 23T Stock that I use ...I gear in the 4.95~6.0 Range...with 6.0 being the upper limmit
-Dave
__________________
Ȼ4.5 Centro+α ◊ TRF 501ӽ ◊ TRF 502ӽs ◊ TRF 503 ◊ TRF 511 ◊ TRF 201ӽr ◊ TRF 211ӽ
B5m ◊ T5m ◊SC5m ◊ B64deez nutz
Speedway PAL ◊ SDRC ◊ Shop UFO ◊ SMC
JDM_DOHC_SiR is offline   Reply With Quote
Old 04-11-2003, 04:51 AM   #15
Tech Master
 
Alvin's Avatar
 
Join Date: Aug 2001
Location: Singapore, Jurong East
Posts: 1,654
Default

JDM_DOHC_SiR,
Have you ever raced a HPI Super Stock 23T? What ratio were you using with it? The one I used came with stand up brushes... thanks!
Alvin is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
FS: Tamiya Hop-up motors ivan3721 R/C Items: For Sale/Trade 3 05-18-2008 05:56 PM
Question about the Tamiya TZ and RZ motors thahookup Rookie Zone 6 06-22-2006 03:33 AM
Tamiya Motors (where, what, how) Punkynutt Electric On-Road 16 02-13-2005 04:31 PM
Tamiya Electric Motors Punkynutt Electric On-Road 1 06-30-2004 09:48 AM
Tamiya electric motors?? Evoracer Electric On-Road 26 03-10-2004 06:38 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 08:31 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