R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 09-02-2003, 08:46 AM   #16
Tech Master
 
berger's Avatar
R/C Tech Charter Subscriber
 
Join Date: Aug 2003
Location: Bathurst, Australia
Posts: 1,149
Trader Rating: 1 (100%+)
Default

It will be foam tyres, i usually run 26 pinion and 72 spur, which with new foams gives a roll out of allmost 30mm.
berger is offline   Reply With Quote
Old 09-02-2003, 01:40 PM   #17
Tech Elite
 
Roger's Avatar
 
Join Date: Feb 2003
Posts: 2,312
Trader Rating: 10 (100%+)
Default

what do you guys do to your motors to run a little more faster ?? Polish bushings ? Change springs and brushes ? Cut comms after you use them twice ? I know that alot of you guys that race stock tweak the motors to get that edge over your competitor. What are some of your ideas, besides what gear ratio you run or what kinda motor you use. And, I also know a few of you guys have advanced the timing by 3 degrees cause i've seen it on some cars. CHEATERS
__________________
http://nitrokb.netne.net/profiles/RogerSerafin.html
Roger is offline   Reply With Quote
Old 09-02-2003, 01:41 PM   #18
Tech Master
 
berger's Avatar
R/C Tech Charter Subscriber
 
Join Date: Aug 2003
Location: Bathurst, Australia
Posts: 1,149
Trader Rating: 1 (100%+)
Default

As i race carpet ill just play with the brushes+springs to get more rpm or torque depending on the track.
berger is offline   Reply With Quote
Old 09-02-2003, 04:36 PM   #19
Tech Elite
 
sosidge's Avatar
 
Join Date: Dec 2001
Location: Bristol, UK
Posts: 3,865
Default

www.bigjimracing.com has a long list of tuning tips for stock motors, but essentially all i do to keep it quick is regular comm skims, (no set time, just when it gets discoloured and uneven), high-silver brushes, a correctly shimmed armature, and a bit of lube on the bushings. And pay attention to gear ratios.
sosidge is offline   Reply With Quote
Old 09-02-2003, 06:36 PM   #20
Tech Elite
 
popsracer's Avatar
 
Join Date: Oct 2002
Location: "Hot, Sunny Southern California"
Posts: 3,120
Default Stock Motor Brushes

Guys;

I've had very good on-Track and Dyno results with the Putnam Green/Blue Brushes in my Epic Motors.

Has anyone done any comparisons between the Putnams and the Trinity 4503/4505's?

If so, what were the results.

Thanks,
popsracer is offline   Reply With Quote
Old 09-02-2003, 06:55 PM   #21
Tech Elite
 
Join Date: Aug 2001
Posts: 2,583
Default

Quote:
Originally posted by Roger
what do you guys do to your motors to run a little more faster ?? Polish bushings ? Change springs and brushes ? Cut comms after you use them twice ? I know that alot of you guys that race stock tweak the motors to get that edge over your competitor. What are some of your ideas, besides what gear ratio you run or what kinda motor you use. And, I also know a few of you guys have advanced the timing by 3 degrees cause i've seen it on some cars. CHEATERS

How did they advance the timing on a stock motor?
Sydewynder is offline   Reply With Quote
Old 09-02-2003, 06:58 PM   #22
Tech Adept
 
blixelX's Avatar
 
Join Date: Jul 2003
Location: Singapore
Posts: 187
Default

hi guys, i am using tamiya type R, and it works ok to me, i gear it up to 5.9... the temp is ok...
blixelX is offline   Reply With Quote
Old 09-02-2003, 07:06 PM   #23
Tech Addict
 
stonedgti's Avatar
 
Join Date: Jun 2003
Location: U.S.A.
Posts: 699
Trader Rating: 15 (100%+)
Default

I'm gearing my P2k Pro on my TC3 at 6.43. Good? Bad? I haven't burned the thing yet.

I geared my Axiom monster at 6.92 and I think I almost burned the damn thing. I'm gonna try and gear it at 7.5 and see.

Any suggestions on Axiom monster?
__________________
Team Powers | ORCA | OD 12 Racing | NorCal Hobbies | JWerks | Sonic Racing | Team Gayzer | AYO Racing | Team Hastings | Uncle Larry Concepts | Moonlight Toys
stonedgti is offline   Reply With Quote
Old 09-02-2003, 07:10 PM   #24
Tech Elite
 
Roger's Avatar
 
Join Date: Feb 2003
Posts: 2,312
Trader Rating: 10 (100%+)
Default

Very easily Will. I'll show you tonight at the R/C tech race. ( Not that I ever used it, but it can be done. )
__________________
http://nitrokb.netne.net/profiles/RogerSerafin.html
Roger is offline   Reply With Quote
Old 09-02-2003, 09:16 PM   #25
Tech Elite
 
fatdoggy's Avatar
R/C Tech Charter Subscriber
 
Join Date: Aug 2001
Location: MD USA
Posts: 3,642
Default

Quote:
Originally posted by Sydewynder
How did they advance the timing on a stock motor?
You get rid of a little of the trailing end of the brush face. You will have to mess around with some fresh brushes to figure out just how much of the trailing end of the brush face to cut off but it should get you some more power. *But* this is illegal.......
fatdoggy is offline   Reply With Quote
Old 09-03-2003, 12:03 AM   #26
Tech Elite
 
fatdoggy's Avatar
R/C Tech Charter Subscriber
 
Join Date: Aug 2001
Location: MD USA
Posts: 3,642
Default

For high rpm motor like the monster a good starting point is 7.2 to 7.5, for motors like the Mvp and the p2k start around 6.5 to 6.8 and tune from there. With the p2k2 might be able to pull a slightly higher ratio as the baseline since it's has more torque. These are just numbers that should at least get you in the ball park for a mid sized track. It all depends on the track you run on, some people run 8's with mosters on tight carpet track and I've run 5.8's on a large track with my Mvp(which was murder on it, but it stuck it out).
fatdoggy is offline   Reply With Quote
Old 09-03-2003, 01:03 AM   #27
Tom
Tech Regular
 
Tom's Avatar
 
Join Date: Nov 2002
Location: Australia-mate
Posts: 349
Default

I run my monster at 6.0

i have run it at 5.6 but it didnt have enough punch out of the corners.

I cut the comm every 5 runs, polish bushings every 4 cuts, replace brushers every 3-4 cuts (i have a brush cutter, use every time i cut)brushers are fantom 315s, springs are red/green

Keep your brush hoods really clean as they get most if not all there current from the hoods not the brush shunt. You can run the brushes at club level with out the shunts if you want.
Tom is offline   Reply With Quote
Old 09-03-2003, 02:43 AM   #28
Tech Regular
 
Johnny J's Avatar
 
Join Date: Feb 2003
Location: Australia, NSW
Posts: 375
Default

That seems pretty dam high, I gear my monsters about 7.2 and they seem to like it.
Johnny J is offline   Reply With Quote
Old 09-03-2003, 07:48 AM   #29
Tech Elite
 
Join Date: Aug 2001
Posts: 2,583
Default

Quote:
Originally posted by fatdoggy
You get rid of a little of the trailing end of the brush face. You will have to mess around with some fresh brushes to figure out just how much of the trailing end of the brush face to cut off but it should get you some more power. *But* this is illegal.......
I'm not sure this will give you more power since the contact face is now smaller. More rpm but less torque so the power would even out. Isn't power = torque X rpm / 5252?

Is this also illegal? I didn't read anything in the ROAR rules about brushes.

Anyway, Roger (thanks) showed me what it being done and it is definitely and plainly (if the race director looks) illegal.
Sad that some resort to this. I always wondered why certain people seem to lose 1/2 to 1 second per lap in the main from their qualifying times.
Sydewynder is offline   Reply With Quote
Old 09-03-2003, 12:17 PM   #30
Tech Regular
 
Join Date: Aug 2002
Location: Oceanside, CA
Posts: 259
Default How long to break in brushes?

How long should you break in brushes for the following situations?

1. Recut comm and use same brushes.

2. Recut comm and install new brushes.
jbackslash is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
The BRP Thread, 1/18 stock and mod. national champs sg1 Micro and Mini Scales 176 12-24-2009 02:15 PM
Stock Motor Lot w/Trinity case and Much More Motor Mate Racer4Life R/C Items: For Sale/Trade 2 08-19-2007 09:04 PM
Method to run-in stock to higher turm motor? or a stock tune to a higher turns? micro80 Malaysian R/C Racers 0 06-16-2007 12:40 PM
Stock motor blowout!!! NEW Hurricane bushing reamer / 767 brushes / motor case LOW$ evostyle R/C Items: For Sale/Trade 0 11-27-2006 11:22 PM
Stock motor sale !!!!CO27,P2k Pro, Monsters stock Marcos.J R/C Items: For Sale/Trade 36 06-27-2006 06:26 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 08:09 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