R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 11-09-2007, 11:36 AM   #556
Tech Fanatic
 
SirSwiftAlot's Avatar
 
Join Date: Jul 2007
Location: SOCAL the fastest mini cooper guys in the nation
Posts: 862
Trader Rating: 11 (100%+)
Default

We are not stupid you don't get 25,000 out of a johnson legally. BTW that motor sounds to be about 19,200 - 19,800 I can tell in the pitch you have'nt even begun to hit the high winding sound yet. But its very nice of you to share with us though. I will give you an A for presentation A for thought and F for proper documentation and support findings.
__________________
Why do people park in a driveway but then drive in a parkway?
SirSwiftAlot is offline   Reply With Quote
Old 11-09-2007, 06:28 PM   #557
Tech Initiate
 
Weasely's Avatar
 
Join Date: Jun 2005
Location: Sunnyvale, CA
Posts: 41
Trader Rating: 2 (100%+)
Default

Alrighty, i've read through pretty much the entirety of this thread and taken on board the most common 'voodoo tricks' to running in your johnson motor.

As it stands, the other lads in the class seem to poop all over me on the straights, and have just a tiny bit more torque as well. Since i was running no fan, and my motor was getting painfully hot due to overgearing, (burned one out in experimenting) and tight drive-belt most likley, i've gotten a fan, smaller pinions (aiming for an FDR around 4.5-4.8, since its apparently what other folks are using) i'm just trying to find the extra things that the other folks are doing, that i might not be - i reckon my racing line is improving, so now i'm hunting that extra bit of 'go'.

The point of my post though - I dont have a charger or motor management gear to run in my motor. What should i use to do it, in its place? Some batteries soldered together in a linear fashion? If anyone could shed some more light on the details of that - like just the same sub-c cells as what you'd use to power the car, or if this is even the right idea at all, it'd be much appreciated.

I've got a bunch of gear at hand to use, including a drill to try running-in as well.. I've got Team Orion Motor spray, Brasso, metho, turps, some thin oil (for a sewing machine i beleive)..
Just not sure what path of action to take from here on in, in seating those damn brushes right. I have two two-slot johnson motors - the sort with black 'endbells', one is more shiny on the can than the other, which i think a fella at the track mentioned one has softer brushes than the other (which i took note of).
__________________
Brakes only slow you down.
Weasely is offline   Reply With Quote
Old 11-10-2007, 03:33 AM   #558
Tech Addict
 
kuanseng1981's Avatar
 
Join Date: Aug 2003
Location: Singapore
Posts: 560
Trader Rating: 15 (100%+)
Default

Well the video as i promise, anyway this is the 24000 rpm motor at 7.2volts

http://www.youtube.com/watch?v=KX0teQd4cUo
__________________
Friends come and go,
who's your friend nobody knows,
till the time than it will show,
who is friend who is foe.
kuanseng1981 is offline   Reply With Quote
Old 11-10-2007, 03:52 AM   #559
Tech Master
 
nikkiesteban's Avatar
 
Join Date: Apr 2005
Posts: 1,649
Trader Rating: 5 (100%+)
Send a message via Yahoo to nikkiesteban
Default

Quote:
Originally Posted by kuanseng1981 View Post
Well the video as i promise, anyway this is the 24000 rpm motor at 7.2volts

http://www.youtube.com/watch?v=KX0teQd4cUo
did you tweak your 540j?
it awesome!
__________________
hello miss, puwede pa bind?
nikkiesteban is offline   Reply With Quote
Old 11-10-2007, 03:54 AM   #560
Tech Adept
 
Evilstealth's Avatar
 
Join Date: Jan 2007
Location: Sydney, NSW
Posts: 230
Trader Rating: 3 (100%+)
Send a message via MSN to Evilstealth
Default

Quote:
Originally Posted by kuanseng1981 View Post
Well the video as i promise, anyway this is the 24000 rpm motor at 7.2volts

http://www.youtube.com/watch?v=KX0teQd4cUo
Comon dude tell us how you do it
__________________
http://www.rctech.net/forum/electric-road/290595-new-offline-rollout-calculator.html#post5695222 - Offline Rollout Calculator
Evilstealth is offline   Reply With Quote
Old 11-10-2007, 12:26 PM   #561
Tech Addict
 
Join Date: Mar 2002
Location: New Zealand
Posts: 556
Default

Really those readings mean absolutely nothing.... there is only one place to proove a good motor - on the track.

i bet if you put a load on this motor it would be crap!!

Mike
ixlr8nz is offline   Reply With Quote
Old 11-10-2007, 04:58 PM   #562
Tech Fanatic
 
SirSwiftAlot's Avatar
 
Join Date: Jul 2007
Location: SOCAL the fastest mini cooper guys in the nation
Posts: 862
Trader Rating: 11 (100%+)
Default

Quote:
Originally Posted by kuanseng1981 View Post
Well the video as i promise, anyway this is the 24000 rpm motor at 7.2volts

http://www.youtube.com/watch?v=KX0teQd4cUo
Nice job I beleive you now. Oh are those Snap On or Craftsman pliers you use when you twist the armature. I can twist a johnson and get 29,000 rpm but its cheating and no one likes a cheater.
__________________
Why do people park in a driveway but then drive in a parkway?
SirSwiftAlot is offline   Reply With Quote
Old 11-11-2007, 03:29 AM   #563
Tech Addict
 
kuanseng1981's Avatar
 
Join Date: Aug 2003
Location: Singapore
Posts: 560
Trader Rating: 15 (100%+)
Default

Quote:
Originally Posted by SirSwiftAlot View Post
Nice job I beleive you now. Oh are those Snap On or Craftsman pliers you use when you twist the armature. I can twist a johnson and get 29,000 rpm but its cheating and no one likes a cheater.
I agree with u, no1 likes a cheater. But i am aready infamous in my country for tuning silver can, so whether i tweak or never tweak the motor ppl will not believe. Anyway the highest rpm and amp draw i got on my silver can is about 40000rpm and draw about 5amps, but it is not usable.

Anyway this motor have aready being proven on the track by alot of drivers.
__________________
Friends come and go,
who's your friend nobody knows,
till the time than it will show,
who is friend who is foe.
kuanseng1981 is offline   Reply With Quote
Old 11-11-2007, 06:17 PM   #564
Tech Elite
 
rccardr's Avatar
 
Join Date: Aug 2003
Location: The Secret Underground Laboratory
Posts: 2,353
Trader Rating: 8 (100%+)
Default

See pic below.
No cranko, no cheato, just hard work gained from 20 years of running these things.
Attached Thumbnails
Silver Can Motor Tips/Tricks-silver-can-7-point-2-volts-rpm.jpg  
__________________
I've never lost.
I've just been a little bit behind when time ran out...

RED DOT MOTORS- Fastest Titan 12T and silver can 540 motors in the known galaxy!
rccardr is offline   Reply With Quote
Old 11-12-2007, 04:28 AM   #565
Tech Elite
 
Join Date: Jun 2003
Posts: 4,002
Trader Rating: 3 (100%+)
Default Run in

Hi,

2volts at 12 hrs? clockwise rotation break in?

ty..

joel
rccartips is offline   Reply With Quote
Old 11-12-2007, 06:56 AM   #566
Tech Champion
 
tc3team's Avatar
 
Join Date: Mar 2006
Location: UK
Posts: 6,151
Default

Quote:
Originally Posted by Weasely View Post
Alrighty, i've read through pretty much the entirety of this thread and taken on board the most common 'voodoo tricks' to running in your johnson motor.

As it stands, the other lads in the class seem to poop all over me on the straights, and have just a tiny bit more torque as well. Since i was running no fan, and my motor was getting painfully hot due to overgearing, (burned one out in experimenting) and tight drive-belt most likley, i've gotten a fan, smaller pinions (aiming for an FDR around 4.5-4.8, since its apparently what other folks are using) i'm just trying to find the extra things that the other folks are doing, that i might not be - i reckon my racing line is improving, so now i'm hunting that extra bit of 'go'.

The point of my post though - I dont have a charger or motor management gear to run in my motor. What should i use to do it, in its place? Some batteries soldered together in a linear fashion? If anyone could shed some more light on the details of that - like just the same sub-c cells as what you'd use to power the car, or if this is even the right idea at all, it'd be much appreciated.

I've got a bunch of gear at hand to use, including a drill to try running-in as well.. I've got Team Orion Motor spray, Brasso, metho, turps, some thin oil (for a sewing machine i beleive)..
Just not sure what path of action to take from here on in, in seating those damn brushes right. I have two two-slot johnson motors - the sort with black 'endbells', one is more shiny on the can than the other, which i think a fella at the track mentioned one has softer brushes than the other (which i took note of).
Power going in is power going out, maybe they have better cells? Or charged them at a higher amperage? Just a thought for you to think over
__________________
Fusion Hobbies / www.horshamrc.org

The wife stops me being sane and the r/c stops me from going insane....
tc3team is offline   Reply With Quote
Old 11-12-2007, 11:12 AM   #567
Tech Lord
 
Hebiki's Avatar
 
Join Date: Aug 2003
Location: Chino, CA
Posts: 12,919
Trader Rating: 26 (100%+)
Default

Quote:
Originally Posted by rccardr View Post
See pic below.
No cranko, no cheato, just hard work gained from 20 years of running these things.
__________________
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 11-12-2007, 09:46 PM   #568
Tech Regular
 
Swift and Sleek's Avatar
 
Join Date: Aug 2006
Location: BADBOYS
Posts: 464
Trader Rating: 10 (100%+)
Default EI JO!

Quote:
Originally Posted by rccartips View Post
Hi,

2volts at 12 hrs? clockwise rotation break in?

ty..

joel
JOEL IS THIS YOUR BREAK IN REGIMEN FOR MABUCHI?
__________________
"TEAM BAD BOYS"
FOR THE LOVE OF THE GAME
Swift and Sleek is offline   Reply With Quote
Old 11-16-2007, 09:48 AM   #569
Tech Fanatic
 
SirSwiftAlot's Avatar
 
Join Date: Jul 2007
Location: SOCAL the fastest mini cooper guys in the nation
Posts: 862
Trader Rating: 11 (100%+)
Default

Hi remember me I was usually on the front page.
__________________
Why do people park in a driveway but then drive in a parkway?
SirSwiftAlot is offline   Reply With Quote
Old 11-16-2007, 12:10 PM   #570
Tech Initiate
 
ChuckWick357's Avatar
 
Join Date: Nov 2007
Posts: 48
Default

Hey guys,

I am New to the forum, and greatly inexperienced in electric racing.
I just bought a Mini, I broke in the motor using the water method.
The thing is much faster in reverse then forward. Is there anything I can do to fix this?
I assume this has been covered; a good link would be appreciated
ChuckWick357 is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
X-ray T2, Tips and Tricks trailranger Electric On-Road 4 05-17-2008 02:44 PM
Silver Can (Mabuchi) Motor Tricks miller1990 Electric On-Road 1 03-06-2007 10:06 PM
Co27 motor tuning tips, hints, or tricks schmidt452 Electric Off-Road 16 11-08-2006 11:04 PM
tips and tricks XXX-NT streetstock Electric Off-Road 2 05-13-2005 10:50 AM
Tips And Tricks rctc3 Electric On-Road 36 03-10-2002 10:54 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 03:30 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