R/C Tech Forums

Go Back   R/C Tech Forums > General Forums > Electric On-Road > Team and Company Discussions

Like Tree37Likes
Reply
 
Thread Tools Search this Thread
Old 07-27-2006, 04:29 PM   #4486
Tech Addict
 
chubbspeterson's Avatar
 
Join Date: Jun 2005
Location: Ridgemont
Posts: 518
Default

Quote:
Originally Posted by EAMotorsports
I just wanted to drop in and Welcome new and upcoming racer Mike Wise....Ok so maybe he's not new but he is making a name for him self and his Yokomo!! Hope he's got an alumn shaft in that car.....Carbon fiber just isnt going to cut it anymore

EA

Thanks EA, and I look forward to running your motors this upcomming Fall season!
__________________
Mike Demone
7-Eleven, National Accounts Manager
Ridgemont, CA, 90026
"I vowed to never let this happen.."
chubbspeterson is offline   Reply With Quote
Old 07-27-2006, 05:49 PM   #4487
Tech Regular
 
LWracer's Avatar
 
Join Date: Apr 2006
Location: Central Florida
Posts: 378
Trader Rating: 13 (100%+)
Default Breaking in a motor?

Hello all! We are fairly new to motor rebuilding and would like some help.....
We cut the armature, check the hood alignment...new brushes....767
We run them on a LRP Comp 2 .....about 3 volts for about 300 sec's...
But we never seem to get the higher amps ....like 8 to 8.5 amps at 4 volts
is this about normal???
I know this is a long winded question...
But help is appreciated!!
Jeff
LWracer is offline   Reply With Quote
Old 07-27-2006, 07:06 PM   #4488
Team EAM
 
EAMotorsports's Avatar
 
Join Date: Dec 2001
Location: Murfreesboro, TN
Posts: 9,116
Trader Rating: 79 (100%+)
Send a message via AIM to EAMotorsports
Default

What I find 90% of the time when a customer says that their motor was fast untill they rebuilt it its usually their lathe is cutting poor..ie tapered one way or the other. The other 10% is usually either brush hoods are out of wack or the brushes they are using are from a not so good batch.

I would have someone else true the comm on their lathe and then re-assemble it and see if that helps.

EA
__________________
Contact Us
Team EAM, Our Facebook
Xray | RCAmerica | Hudy | Apex RC | RC Mission | Killer Concepts | AVID | Hobbywing.
EAMotorsports is offline   Reply With Quote
Old 07-27-2006, 07:10 PM   #4489
Tech Regular
 
LWracer's Avatar
 
Join Date: Apr 2006
Location: Central Florida
Posts: 378
Trader Rating: 13 (100%+)
Default

I ordered some of your F brushes tonight....they should be good right? LOL
Thanks for the suggestions!!
LWracer is offline   Reply With Quote
Old 07-28-2006, 07:29 AM   #4490
Tech Adept
 
Join Date: Nov 2005
Posts: 192
Default

Quote:
Originally Posted by EAMotorsports
What I find 90% of the time when a customer says that their motor was fast untill they rebuilt it its usually their lathe is cutting poor..ie tapered one way or the other. The other 10% is usually either brush hoods are out of wack or the brushes they are using are from a not so good batch.

I would have someone else true the comm on their lathe and then re-assemble it and see if that helps.

EA
I never though about that but that is something i should look into is there a way to know if my lathe is not cutting right? should i use a caliper to see if my cut is right.
Mutabarucka is offline   Reply With Quote
Old 07-28-2006, 08:39 AM   #4491
Team EAM
 
EAMotorsports's Avatar
 
Join Date: Dec 2001
Location: Murfreesboro, TN
Posts: 9,116
Trader Rating: 79 (100%+)
Send a message via AIM to EAMotorsports
Default

Usually its hard to measure unless you have a very good set of calipers....Best way is to find someone who knows that their lathe cuts straight and have them cut an arm AFTER you have just cut it. A very light pass will tell real quick if its straight or not.

EA
__________________
Contact Us
Team EAM, Our Facebook
Xray | RCAmerica | Hudy | Apex RC | RC Mission | Killer Concepts | AVID | Hobbywing.
EAMotorsports is offline   Reply With Quote
Old 07-28-2006, 08:46 AM   #4492
Tech Elite
 
Mr. Shookie's Avatar
R/C Tech Charter Subscriber
 
Join Date: Sep 2004
Location: The Wilderness
Posts: 4,713
Trader Rating: 9 (100%+)
Send a message via AIM to Mr. Shookie Send a message via MSN to Mr. Shookie
Default

Quote:
Originally Posted by EAMotorsports
Usually its hard to measure unless you have a very good set of calipers....Best way is to find someone who knows that their lathe cuts straight and have them cut an arm AFTER you have just cut it. A very light pass will tell real quick if its straight or not.

EA
Word,
That is exactly what was wrong with mine...A simple squaring up the blocks and all is right in the world..
Hey Eric,
I know it has been a long time.....
Been running Nitro Truggy for a while...
Still running your stuff in the B4 though...
Sold all the On Road stuff....But I have been getting an itch to get a TC and give it a go again..LOL
Hope all is well on your end....
-Shookie <><
__________________
All who love the LORD JESUS I praise with you.1 Cor 10:31
Team HOLY Rollers (Team Manager)
The Church is a Hospital for Sinners not a Museum for Saints.
RcTech Feedback <>< RC Tech Subcriber #92
Mr. Shookie is offline   Reply With Quote
Old 07-30-2006, 04:13 AM   #4493
Tech Apprentice
 
Join Date: May 2006
Posts: 58
Default

Quote:
Originally Posted by LWracer
Hello all! We are fairly new to motor rebuilding and would like some help.....
We cut the armature, check the hood alignment...new brushes....767
We run them on a LRP Comp 2 .....about 3 volts for about 300 sec's...
But we never seem to get the higher amps ....like 8 to 8.5 amps at 4 volts
is this about normal???
I know this is a long winded question...
But help is appreciated!!
Jeff
re-shim and solder new set of brushes.
skamolly is offline   Reply With Quote
Old 07-30-2006, 06:50 AM   #4494
Tech Champion
 
TryHard's Avatar
 
Join Date: Jun 2004
Location: Sydney, NSW
Posts: 5,270
Trader Rating: 4 (100%+)
Default

Hey Eric

Took my first TQ at local club meeting today. Was running an EA Co27, with EA IB38's, all mounted in my nice new Evo5.... first time racing in about 5weeks, so felt a little rusty... was completely confused over gearing to start with, ended up on about 7.2fdr, which might have been a little low (revving out a bit too early down the straight)... but was punchy as hell

Finals, one the first one by over a lap, but unfortuantly clipped a pipe in the second and stripped the spur... Doh! Ended up 3rd overall because of that, but comfortably the fastest car in the final, consistant sub 10sec laps compared to everyone else over 10. All in all, a good day, gives me good confidence for the next national at Aldershot... which I might also have my other new car (MSX Marc R Edition ).
Hope I can get the C2 working, was still giving glitching at southend, even when I switched back to 767's, really confused as to why thats happening.

Cheers
Ed
__________________
| THard.co.uk | Xray | MuchMore |
TryHard is offline   Reply With Quote
Old 07-30-2006, 10:40 AM   #4495
Tech Addict
 
mutley001's Avatar
 
Join Date: Oct 2004
Location: Kent, UK
Posts: 662
Trader Rating: 1 (100%+)
Default

Hey Eric,
got a question re KD19 and how to keep it cool. Been running at our local outdoor track today geared it to just top out by the end of the straight but boy did it come of hot! To hot to hold which aint good! Been using 767's with red springs. Anything you can suggest?
Been running 5.3 to 5.1 with an atlas and 5.5 with the KD does this sound right to you?
Any advice greatly recieved...

Paul
__________________
ARC R11 2017
ARC R10 2013
EA Motorsports www.teameamotorsports.com
Team EAM
mutley001 is offline   Reply With Quote
Old 07-30-2006, 10:59 AM   #4496
Team EAM
 
EAMotorsports's Avatar
 
Join Date: Dec 2001
Location: Murfreesboro, TN
Posts: 9,116
Trader Rating: 79 (100%+)
Send a message via AIM to EAMotorsports
Default

Quote:
Originally Posted by mutley001
Hey Eric,
got a question re KD19 and how to keep it cool. Been running at our local outdoor track today geared it to just top out by the end of the straight but boy did it come of hot! To hot to hold which aint good! Been using 767's with red springs. Anything you can suggest?
Been running 5.3 to 5.1 with an atlas and 5.5 with the KD does this sound right to you?
Any advice greatly recieved...

Paul
Hey Paul,

The KD's do run hot...It sounds like your overgeared to me though. It should top out around 3/4 of the way down the straight. You can try narrowing the brushes by .005-.010 off of each side. It will reduce the overlap and drop the amp draw down some. This will give it more torque with less RPM but will run a lot cooler.

EA
__________________
Contact Us
Team EAM, Our Facebook
Xray | RCAmerica | Hudy | Apex RC | RC Mission | Killer Concepts | AVID | Hobbywing.
EAMotorsports is offline   Reply With Quote
Old 07-30-2006, 11:05 AM   #4497
Tech Addict
 
mutley001's Avatar
 
Join Date: Oct 2004
Location: Kent, UK
Posts: 662
Trader Rating: 1 (100%+)
Default

Quote:
Originally Posted by EAMotorsports
Hey Paul,

The KD's do run hot...It sounds like your overgeared to me though. It should top out around 3/4 of the way down the straight. You can try narrowing the brushes by .005-.010 off of each side. It will reduce the overlap and drop the amp draw down some. This will give it more torque with less RPM but will run a lot cooler.

EA
Thanks Eric, will try it next weekend and let you know how I get on...

Paul
__________________
ARC R11 2017
ARC R10 2013
EA Motorsports www.teameamotorsports.com
Team EAM
mutley001 is offline   Reply With Quote
Old 07-31-2006, 07:08 AM   #4498
Team EAM
 
EAMotorsports's Avatar
 
Join Date: Dec 2001
Location: Murfreesboro, TN
Posts: 9,116
Trader Rating: 79 (100%+)
Send a message via AIM to EAMotorsports
Default

Still got a few X stocks and Roar stocks on the website. Working on a fresh batch of IB4200 SHV's right now as well. You want Voltage? High runtime? Low IR's? These are the cells for you then!! They have it all

EA
__________________
Contact Us
Team EAM, Our Facebook
Xray | RCAmerica | Hudy | Apex RC | RC Mission | Killer Concepts | AVID | Hobbywing.
EAMotorsports is offline   Reply With Quote
Old 07-31-2006, 07:19 AM   #4499
Tech Champion
 
rayhuang's Avatar
 
Join Date: Dec 2001
Location: Cleveland Heights, Ohio
Posts: 6,511
Trader Rating: 5 (100%+)
Send a message via AIM to rayhuang
Default IB4200 SHV rock!!

Well Eric-for anyone who hasnt tried them yet-the SHV 4200's are the real deal. They are so fast. I am not 100% sure I couldnt finish two 5 minute heats on one charge as I discharged over 200 sec at 35 amps AFTER a 5-minute stock TC race!! I wouldnt, but I think I could!!!

The pack ran even faster on the 2nd charge. I cannot wait for charge 3, 4, 5....
rayhuang is offline   Reply With Quote
Old 07-31-2006, 07:21 AM   #4500
Team EAM
 
EAMotorsports's Avatar
 
Join Date: Dec 2001
Location: Murfreesboro, TN
Posts: 9,116
Trader Rating: 79 (100%+)
Send a message via AIM to EAMotorsports
Default

Yea the newest cells are pretty good. IB has changed the cell a little so that they mature after 5-6 runs. Its to help the life of the battery even more. So in about 2 weeks look out!!

EA
__________________
Contact Us
Team EAM, Our Facebook
Xray | RCAmerica | Hudy | Apex RC | RC Mission | Killer Concepts | AVID | Hobbywing.
EAMotorsports is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Spektrum DX3R Discussion Thread MadRacer Radio and Electronics 2015 05-10-2017 12:45 PM
2005 RCX Discussion Thread wizard9x Electric On-Road 2 11-11-2009 05:49 AM
GSRacing discussion thread Panic Singapore R/C Racers 118 12-31-2007 09:34 AM
RRR Discussion Thread tornado Malaysian R/C Racers 84 09-06-2005 07:05 AM
Come Join the IRT + Discussion Thread Cmotif International Racing Team 20 05-01-2004 10:48 PM



Currently Active Users Viewing This Thread: 2 (0 members and 2 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 12:06 AM.


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