R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 10-25-2007, 10:42 AM   #196
Tech Lord
 
Hebiki's Avatar
 
Join Date: Aug 2003
Location: Chino, CA
Posts: 12,919
Trader Rating: 26 (100%+)
Default

Quote:
Originally Posted by Skruger View Post
My bad
I should not have used CELSIUS and Fahrenheit in the same responce
your original post just made it seem like you were thermaling at a lower temp. my bad

i have taken my motors up to 190*F ... so im very close to playing with fire.

i noticed during braking with my 13.5 it was as strong as it "used to be".

so my question is.... if you take the rotor to the higher limits of its temp range, will it affect its "braking" abilities?
__________________
Hebiki Design Works
Custom R/C Vinyl Graphics & Apparel: Your gear, your way!
Web Design - Web Development - Logo Design - Graphic Design
www.facebook.com/HebikiDesignWorks
Hebiki is offline   Reply With Quote
Old 10-25-2007, 10:51 AM   #197
The Evicerator
R/C Tech Elite Subscriber
 
Join Date: Sep 2001
Location: Irvine, CA
Posts: 4,142
Default

Most of the time anything electronic runs hot it runs less efficiently than it would at a lower temperature. I would expect to get less brake out of a motor that was 190 degrees than one that was at 110 degrees.

Running your motor right at the temp shut down threshold over prolonged periods of time can cause even sintered rotors to degrade and it might be in your best interest to look into replacing the rotor more regularly or backing down on your gearing so that that those temperatures aren't reached.
__________________
Steve Weiss
TEAM ASSOCIATED -- REEDY -- SANWA -- PROTOFORM -- 1UP Racing -- ActivRC -- P1 BRAND -- TEAM KINWALD -- TEAM STEVE INTERNATIONAL
Steve Weiss is offline   Reply With Quote
Old 10-25-2007, 02:56 PM   #198
Tech Adept
 
jallshouse's Avatar
 
Join Date: Mar 2003
Location: Pennsylvainia
Posts: 222
Trader Rating: 3 (100%+)
Send a message via Yahoo to jallshouse
Default

hey guys....need some help here, i may or may not have a problem with my LRP Vector 13.5 motor. i purchaced and installed the ceramic bearings and the sintered armature and noticed something very odd (but have no experiance with brushless up to this point) when the bonded armature was in the can and installed in the car pinion gear and all, the drivetrain spun so free that i had to hold a finger over the end of the pinion gear to set gear mesh. now with the sintered armature in the motor dosent act this way, when spinning just the shaft it feels like a brushed motor and "jogs" as i turn it and its really hard to turn compared to the bonded one. with everything installed in the car this "jogging" amplifys to the point it feels "gritty" and wont spin free at all......what did i do wrong, or is this normal and the sintered armature just has that much more pull than the bonded one
jallshouse is offline   Reply With Quote
Old 10-25-2007, 02:59 PM   #199
Tech Lord
 
syndr0me's Avatar
 
Join Date: Dec 2004
Location: 5280 Raceway
Posts: 13,140
Trader Rating: 32 (100%+)
Default

It's normal, the sintered rotors have a lot more magnetic strength, and will "cog" more than the bonded. You'll need to gear it up quite a bit to get the speed out of it since it's got a lot more torque now.
syndr0me is offline   Reply With Quote
Old 10-25-2007, 03:22 PM   #200
Tech Adept
 
jallshouse's Avatar
 
Join Date: Mar 2003
Location: Pennsylvainia
Posts: 222
Trader Rating: 3 (100%+)
Send a message via Yahoo to jallshouse
Default

Quote:
Originally Posted by syndr0me View Post
It's normal, the sintered rotors have a lot more magnetic strength, and will "cog" more than the bonded. You'll need to gear it up quite a bit to get the speed out of it since it's got a lot more torque now.
THANKS!!!! i was really parinoid i screwed something up......i actuailly havent gotten the bonded motor geared right in my 007, its coming off the track at about 200 degrees wether i go up or down a few teeth. guess i will start from scratch now and see where i am at
jallshouse is offline   Reply With Quote
Old 10-25-2007, 03:30 PM   #201
Tech Lord
 
syndr0me's Avatar
 
Join Date: Dec 2004
Location: 5280 Raceway
Posts: 13,140
Trader Rating: 32 (100%+)
Default

Quote:
Originally Posted by jallshouse View Post
THANKS!!!! i was really parinoid i screwed something up......i actuailly havent gotten the bonded motor geared right in my 007, its coming off the track at about 200 degrees wether i go up or down a few teeth. guess i will start from scratch now and see where i am at
The bonded rotors fade pretty bad each time they get hot. They, as you run them, they get hotter and hotter each time. It's a pretty lame cycle, and the reason nobody likes that rotor. The sintered isn't like that, should run cool, and last a lot, lot longer. My motto is "gear it until it bleeds." I'd start around a 38mm rollout and work your way up until it gets slower, then back off a tooth. Locally, we see them around 40-43mm, but that will vary a bit from motor to motor, track layout, and driving style. Enjoy!
syndr0me is offline   Reply With Quote
Old 10-25-2007, 03:47 PM   #202
Tech Lord
 
Hebiki's Avatar
 
Join Date: Aug 2003
Location: Chino, CA
Posts: 12,919
Trader Rating: 26 (100%+)
Default

Quote:
Originally Posted by Steve Weiss View Post
Most of the time anything electronic runs hot it runs less efficiently than it would at a lower temperature. I would expect to get less brake out of a motor that was 190 degrees than one that was at 110 degrees.

Running your motor right at the temp shut down threshold over prolonged periods of time can cause even sintered rotors to degrade and it might be in your best interest to look into replacing the rotor more regularly or backing down on your gearing so that that those temperatures aren't reached.
thanks steve! ive been running my 13.5 between 150-170. but my first run every race day is usually to figure out gearing. i guess i'll need a new rotor pretty soon.
__________________
Hebiki Design Works
Custom R/C Vinyl Graphics & Apparel: Your gear, your way!
Web Design - Web Development - Logo Design - Graphic Design
www.facebook.com/HebikiDesignWorks
Hebiki is offline   Reply With Quote
Old 10-27-2007, 08:02 PM   #203
Tech Master
 
Car Breaker's Avatar
 
Join Date: Apr 2004
Location: Grave Yard
Posts: 1,261
Trader Rating: 10 (100%+)
Default

my motor after 4th meeting , can I send it for warranty?
Attached Thumbnails
The One True 13.5 Thread-p1010808.jpg  
Car Breaker is offline   Reply With Quote
Old 10-27-2007, 09:40 PM   #204
Tech Champion
 
AdrianM's Avatar
 
Join Date: Aug 2001
Location: Tampa, FL
Posts: 5,914
Trader Rating: 4 (100%+)
Default

Quote:
Originally Posted by Car Breaker View Post
my motor after 4th meeting , can I send it for warranty?
I am pretty sure that would be a yes. Look like a glue failure (or lack of glue).
__________________
Adrian Martinez
What I run: Schumacher Mi5/Associated RC10R5.1/Associated RC12R5.2/Futaba/HobbyWing/Team EA Motorsports/BSR Racing
Where I run: Florida Indoor R/C Complex/Thunder Racing/Florida On Road State Series
AdrianM is offline   Reply With Quote
Old 10-27-2007, 10:58 PM   #205
Tech Champion
 
snoopyrc's Avatar
 
Join Date: Oct 2006
Location: Tunnel Hill GA
Posts: 5,046
Trader Rating: 2 (100%+)
Default

Is the Tekin 13.5 released yet? When is that supposed to happen? I would like to see how well it performs.
snoopyrc is offline   Reply With Quote
Old 10-28-2007, 10:03 PM   #206
Tech Master
 
adamge's Avatar
 
Join Date: Sep 2006
Location: Saskatoon,SK Canada
Posts: 1,654
Trader Rating: 1 (100%+)
Default

Experience from this weekend's large regional race: Novak 13.5SS is considerably faster than a tuned stock motor.
__________________
When someone is intent on excelling in an otherwise laudable manner, does he not desire to inflict pain on others by means of his exalted status and enjoy the envy he arouses? Is there not an anticipated delight in an artist's ability to defeat his artistic rivals, which heightens his euphoria in creation?
-Nietzsche
adamge is offline   Reply With Quote
Old 10-28-2007, 10:11 PM   #207
The Evicerator
R/C Tech Elite Subscriber
 
Join Date: Sep 2001
Location: Irvine, CA
Posts: 4,142
Default

Of course!

Fill out a warrantee form and send it on in and we'll get you taken care of!

Quote:
Originally Posted by Car Breaker View Post
my motor after 4th meeting , can I send it for warranty?
__________________
Steve Weiss
TEAM ASSOCIATED -- REEDY -- SANWA -- PROTOFORM -- 1UP Racing -- ActivRC -- P1 BRAND -- TEAM KINWALD -- TEAM STEVE INTERNATIONAL
Steve Weiss is offline   Reply With Quote
Old 10-28-2007, 10:12 PM   #208
The Evicerator
R/C Tech Elite Subscriber
 
Join Date: Sep 2001
Location: Irvine, CA
Posts: 4,142
Default

Well, I don't know... I don't work for Tekin... I work for Novak!

Quote:
Originally Posted by snoopyrc View Post
Is the Tekin 13.5 released yet? When is that supposed to happen? I would like to see how well it performs.
__________________
Steve Weiss
TEAM ASSOCIATED -- REEDY -- SANWA -- PROTOFORM -- 1UP Racing -- ActivRC -- P1 BRAND -- TEAM KINWALD -- TEAM STEVE INTERNATIONAL
Steve Weiss is offline   Reply With Quote
Old 10-29-2007, 12:16 AM   #209
Tech Addict
 
RussB's Avatar
 
Join Date: Aug 2005
Location: Sacramento
Posts: 736
Send a message via MSN to RussB
Default

Quote:
Originally Posted by Steve Weiss View Post
Well, I don't know... I don't work for Tekin... I work for Novak!
well, this is a 13.5 thread, not a novak thread.
RussB is offline   Reply With Quote
Old 10-29-2007, 12:56 AM   #210
Tech Addict
 
magm20001's Avatar
 
Join Date: Sep 2007
Posts: 546
Trader Rating: 5 (100%+)
Default

Quote:
Originally Posted by RussB View Post
well, this is a 13.5 thread, not a novak thread.
dont get nasty buddy, we need more company reps here like steve to take care of us.
__________________
RIP Kanye West ..... Mom
magm20001 is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
True R/C Lipo bprc10T3 Electric Off-Road 10 03-26-2008 07:05 AM
to true or not to true tyres on club days ?? mrgsr Nitro On-Road 4 08-11-2005 06:11 AM
Is This True???????? Zac R Electric On-Road 24 03-24-2005 09:47 PM
Is this true? doublest Electric On-Road 7 05-14-2003 09:35 AM
Is this true ?????? Brett Australian Racing 9 07-14-2002 02:33 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 03:08 AM.


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