R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 05-18-2010, 09:55 PM   #12346
Tech Apprentice
 
Join Date: Jan 2010
Location: Melbourne, Australia
Posts: 67
Default

Sidecar, in my experience with breaking in, I got the best result from running the motor endbell submerged in a kero/water mix. Some may say not the safest, OK, but it did make a difference. I did it outside in a normal mug type container. 2 D cells (so 3 volts) and just let it run down. I think you will find that the more an engines brushes are worn (from new), the more it slows, as the brushes have more contact with the armature as they wrap around it. So simply put, when an engine is new, you'll get high revs, but low electrical contact (torque), and as it wears, you'll get to a stage where the rev's are lower but the torque is strong. There is a sweet spot there, and I feel its not to run it in TOO much. Remember, mini's have fixed gearing which is below the capabilities of most motors. You'll spin wheels regardless. You want top speed.
rcnutbag is offline   Reply With Quote
Old 05-18-2010, 11:29 PM   #12347
Tech Master
 
Join Date: Feb 2009
Posts: 1,920
Trader Rating: 1 (100%+)
Default

Quote:
Originally Posted by rcnutbag View Post
Sidecar, in my experience with breaking in, I got the best result from running the motor endbell submerged in a kero/water mix. Some may say not the safest, OK, but it did make a difference. I did it outside in a normal mug type container. 2 D cells (so 3 volts) and just let it run down. I think you will find that the more an engines brushes are worn (from new), the more it slows, as the brushes have more contact with the armature as they wrap around it. So simply put, when an engine is new, you'll get high revs, but low electrical contact (torque), and as it wears, you'll get to a stage where the rev's are lower but the torque is strong. There is a sweet spot there, and I feel its not to run it in TOO much. Remember, mini's have fixed gearing which is below the capabilities of most motors. You'll spin wheels regardless. You want top speed.
Well i am the quickest at our club with my 40hrs motors , to the point where the rest of the guys are doing it too

I use the 3Racing speed gears so i need the torque too not the revs
sidecarphil1 is offline   Reply With Quote
Old 05-19-2010, 12:51 AM   #12348
Tech Apprentice
 
Join Date: Jan 2010
Location: Melbourne, Australia
Posts: 67
Default

Don't get me wrong, there's absolutely no doubt there's a huge benefit in dipping, I was just saying (I believe & from my own experience) there's a point where the revs start dropping off as the brushes wrap around the commutator.

....and we can't use those gears!!

...and I was actually responding to RockinRo, apologies!

Last edited by rcnutbag; 05-19-2010 at 01:13 AM.
rcnutbag is offline   Reply With Quote
Old 05-19-2010, 03:09 AM   #12349
Tech Initiate
 
Jay_P's Avatar
 
Join Date: Mar 2010
Location: UK
Posts: 41
Default

Anyone tried the Tamiya type B slicks yet? Are they any good?
Jay_P is offline   Reply With Quote
Old 05-19-2010, 03:42 AM   #12350
Tech Elite
 
tony gray's Avatar
R/C Tech Elite Subscriber
 
Join Date: Jun 2002
Location: Melbourne, Australia. Home of rc-mini.net
Posts: 3,213
Trader Rating: 4 (100%+)
Default



The 2010 Aussie Mini Nationals.

All the stories, all the pictures, right HERE on rc-mini.net now.
tony gray is offline   Reply With Quote
Old 05-19-2010, 04:56 AM   #12351
Tech Elite
 
rough512's Avatar
 
Join Date: May 2002
Posts: 3,454
Trader Rating: 12 (100%+)
Default

Quote:
Originally Posted by Timbulb View Post
the kit is a little different in the TT01s. The two outer gears have a different input shaft design.
I thought they were the same flat tongued gears? Only difference was the diff joints for TT01 have a shaft/pin going through the three-pronged shaft just like the old splined outdrives.

The m05 Diff joints have no shafts/pins.
rough512 is offline   Reply With Quote
Old 05-19-2010, 08:45 AM   #12352
Tech Champion
 
F N CUDA's Avatar
 
Join Date: May 2007
Location: Mission Viejo, So Cal
Posts: 5,387
Trader Rating: 30 (100%+)
Default

Quote:
Originally Posted by tony gray View Post


The 2010 Aussie Mini Nationals.

All the stories, all the pictures, right HERE on rc-mini.net now.
Wow!
That mini flipped after hitting a leaf on the track?

Great shot.
Looks like the same mini got the center spot on the podium too.
__________________
Craig Hammon
F N CUDA is offline   Reply With Quote
Old 05-19-2010, 10:13 AM   #12353
Tech Initiate
 
Join Date: Feb 2009
Location: Dubai, UAE
Posts: 22
Default

sidecarphil1 and rcnutbag, thanks for your responses n help...really appreciate it.

1 more question (for now...), we're pretty limited here with what the LHS stocks, but going through their servo stock I found the Hitec 635HB to be cheap and good on speed and power...what do you guys think?
Remember limited stock at LHS, if I don't buy this one I'll have to order online and wait 10days.

Thanks again.
RockinRo is offline   Reply With Quote
Old 05-19-2010, 10:35 AM   #12354
Tech Master
 
Join Date: Feb 2009
Posts: 1,920
Trader Rating: 1 (100%+)
Default

Quote:
Originally Posted by RockinRo View Post
sidecarphil1 and rcnutbag, thanks for your responses n help...really appreciate it.

1 more question (for now...), we're pretty limited here with what the LHS stocks, but going through their servo stock I found the Hitec 635HB to be cheap and good on speed and power...what do you guys think?
Remember limited stock at LHS, if I don't buy this one I'll have to order online and wait 10days.

Thanks again.
i wouldn't worrie about servo speeds for a mini LOL

a mid range servo is ok , i ran a cheap bluebird servo for 2 years till i found a 2nd hand Savox fast servo then i turned the Expo down to 50% on my transmitter
sidecarphil1 is offline   Reply With Quote
Old 05-19-2010, 11:38 AM   #12355
Tech Initiate
 
Join Date: Feb 2009
Location: Dubai, UAE
Posts: 22
Default

OK great...would love to keep the cost as low as possible.

One more thing, I have a TA05 and was wondering if the shocks will fit on the M05?

Thanks for baring with me.
RockinRo is offline   Reply With Quote
Old 05-19-2010, 11:50 AM   #12356
Tech Master
 
Join Date: Feb 2009
Posts: 1,920
Trader Rating: 1 (100%+)
Default

Quote:
Originally Posted by RockinRo View Post
OK great...would love to keep the cost as low as possible.

One more thing, I have a TA05 and was wondering if the shocks will fit on the M05?

Thanks for baring with me.
yes but it is best to get the short spring set to lower the car , and i always add 4 to 5 mm spacers under the piston inside the shock to limit up movement but this is just personal
sidecarphil1 is offline   Reply With Quote
Old 05-19-2010, 11:59 AM   #12357
Tech Elite
 
Join Date: Oct 2006
Posts: 2,367
Default

Quote:
Originally Posted by sidecarphil1 View Post
Well i am the quickest at our club with my 40hrs motors , to the point where the rest of the guys are doing it too

I use the 3Racing speed gears so i need the torque too not the revs

Look, I can think of at least 20 reasons why you might be the quickest in your club that have nothing to do with how you break in your motors. Mind you, I'm not saying that what you're doing is without merit, but is not a major reason or even much of the reason for being the quickest.

In my opinion, most of these weird and sometimes comical methods of break in are a little like pissin' in the ocean to raise the water level. The gains are insignificant compared to other things. The other things have been enumerated so many times we need not go there.

If your club allows stuff like speed up gears, you should get a Red Dot 540J motor from Doc Mertes and find out what real motor speed is. Your 40 hr motor will be down about 5,000 rpm at 5v.
Granpa is offline   Reply With Quote
Old 05-19-2010, 02:21 PM   #12358
Tech Regular
 
Join Date: Dec 2009
Location: Valencia, CA
Posts: 337
Trader Rating: 8 (100%+)
Default

Quote:
Originally Posted by sidecarphil1 View Post
i wouldn't worrie about servo speeds for a mini LOL

a mid range servo is ok , i ran a cheap bluebird servo for 2 years till i found a 2nd hand Savox fast servo then i turned the Expo down to 50% on my transmitter
I second that..I had to turn down my expo ot 60%
fx35rc is offline   Reply With Quote
Old 05-19-2010, 02:27 PM   #12359
Tech Master
 
Join Date: Feb 2009
Posts: 1,920
Trader Rating: 1 (100%+)
Default

Quote:
Originally Posted by Granpa View Post
Look, I can think of at least 20 reasons why you might be the quickest in your club that have nothing to do with how you break in your motors. Mind you, I'm not saying that what you're doing is without merit, but is not a major reason or even much of the reason for being the quickest.

In my opinion, most of these weird and sometimes comical methods of break in are a little like pissin' in the ocean to raise the water level. The gains are insignificant compared to other things. The other things have been enumerated so many times we need not go there.

If your club allows stuff like speed up gears, you should get a Red Dot 540J motor from Doc Mertes and find out what real motor speed is. Your 40 hr motor will be down about 5,000 rpm at 5v.
i WONT buy a $45 motor plus sending to Holland on the principle of it is super expensive for mini racing when my car is quick enough , i didn't say i was quick only because of the motor but i compaired it to a waterdipped and a new un-run in motor and this was the one that gave me the fastest and most consistant lap times

but i am still a novice to mini racing and have a lot to learn still
sidecarphil1 is offline   Reply With Quote
Old 05-19-2010, 07:16 PM   #12360
Tech Apprentice
 
Billh's Avatar
 
Join Date: Mar 2006
Posts: 93
Trader Rating: 4 (100%+)
Default

I wish my problem is not enough speed. I need to get the little buggers to handle. I have a M03 and M04.
Billh is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Tamiya Mini Cooper M-03L Hop-ups mini71 R/C Items: Wanted to Buy 4 05-04-2016 11:07 AM
Tamiya Mini Cooper mach51 R/C Items: Wanted to Buy 10 09-02-2011 12:08 AM
FS:TAMIYA Mini Cooper, TA 04S rthmotorsports R/C Items: For Sale/Trade 4 10-20-2007 09:37 PM
Tamiya 415 MSX and M03 Mini Cooper F/S Racer X79 R/C Items: For Sale/Trade 14 12-22-2006 07:38 AM
Tamiya M01,02,03, or 04 Mini Cooper ccugolf.com R/C Items: Wanted to Buy 2 12-05-2004 08:55 PM


Tags
m03, m03r ules, m05, mini, tamiya


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 03:50 AM.


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

SEO by vBSEO 3.5.0