R/C Tech Forums

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

Thread Tools Search this Thread
Old 07-06-2007, 02:15 PM   #1
Tech Fanatic
SRBMOJO's Avatar
Join Date: Jul 2007
Location: ORANGE CO., CA
Posts: 977
Trader Rating: 67 (100%+)

I have an Trinity pro tweaked cobalt stock motor with the following dyno results

21,176 rpm
58 watt power
41.7% efficiency
51.6 torque

It seems to me I have seen Trinity stock motors with 70 plus watt power ratings.

My local hobby shop says that all the latest Trinity shipments have been crap.

Where do you guys buy your stock motors, and what are the dyno results?

I have been to Axiom and Team Kwik's websites, one better than the other?

SRBMOJO is offline   Reply With Quote
Old 07-06-2007, 02:19 PM   #2
Registered User
Join Date: Jun 2004
Posts: 2,025
Trader Rating: 2 (100%+)

Yeah ... Team Brood.

Trinity "tuned" motors are slammed out so quick it creates quality issues. Any of the motor tuners can sell you something for cheaper, and from someone who knows how to tune the motor for maximum results.
Desolas is offline   Reply With Quote
Old 07-06-2007, 02:25 PM   #3
Tech Master
timmay70's Avatar
Join Date: Dec 2003
Posts: 1,702
Trader Rating: 5 (100%+)

I can vouch for Kwik. Shawn will not let a motor go out the door unless its a performer. I have never purchased a motor from them that sucks. I'm at work and don't have any of my dyno print-outs in front of me...
Speed Merchant Rev7, Tekin, TQ Racing (wire), Team Tamale
RC Excitement - Buy where you race, support your local tracks.
ROAR #105242
timmay70 is offline   Reply With Quote
Old 07-06-2007, 05:26 PM   #4
Super Moderator
Grizzbob's Avatar
Join Date: Feb 2002
Location: Sand Springs, OK
Posts: 2,924
Trader Rating: 2 (100%+)

Right, it's possible to get a good motor from Trinity, but it's a matter of pure luck, because they do the same thing to every motor(whether that motor wants it or not) & do a quick test before sending them to shops. But the smaller, reputable tuners(like Brood, Kwik, EAMotorsports, FullThrottle, etc.) really do spend more individual time with their motors, & make sure it's at its best before they sell it, so they've already weeded out the poor & below average motors, so you have a much better chance of getting something strong(& don't worry too much about the raw dyno numbers, some motors actually run better in the car than the numbers would indicate, & others run worse than their numbers would suggest, it's in the car that really matters)....
Bob Seay
Tamiya TRF417, TA05v.2, TRF211XM, M-05ver.2R, XRAY X12
Go Pokes!!!
Grizzbob is offline   Reply With Quote
Old 07-06-2007, 05:40 PM   #5
Tech Elite
imprsme's Avatar
Join Date: Feb 2004
Location: Va.
Posts: 3,563
Trader Rating: 70 (99%+)

You can't go wrong with eXpress motorsports!
eXpress Motorsports
imprsme is offline   Reply With Quote
Old 07-06-2007, 07:26 PM   #6
Tech Regular
Join Date: Jul 2004
Location: australia
Posts: 295

i bought a team brood CO27, but my EPIC ROAR stock motor still felt better

the team brood motor actually felt quite slow. is there something wrong?
myk505 is offline   Reply With Quote
Old 07-06-2007, 07:32 PM   #7
Tech Regular
Pat Clark's Avatar
Join Date: Aug 2005
Location: Easton, Pa
Posts: 297

Originally Posted by myk505 View Post
is there something wrong?

Pat Clark is offline   Reply With Quote
Old 07-06-2007, 07:56 PM   #8
Tech Elite
mike ivy's Avatar
Join Date: Feb 2002
Location: Comin at ya from a distant galaxy
Posts: 2,783
Trader Rating: 50 (100%+)

Yea man, check out eXpress motorsports you'll have some mad ripp!!!

http://www.tmxpress.net/ check it out
[-eXpress motorsports-] [-TQ Wire-]

1/12th Fo' Life!!! R.I.P Mike Reedy, R.I.P John Williams

[-Horsham RC-] [-Jackson RC-] [-RC Car World-] [ Black Out Free 2015 ]
mike ivy is offline   Reply With Quote
Old 07-06-2007, 08:07 PM   #9
Tech Fanatic
KMR's Avatar
Join Date: Mar 2003
Location: Chandler, AZ
Posts: 804

Keoni AhYat
Scottsdale RC Speedway

Team Associated - Reedy - LRP - SRS - BC1 - CH
KMR is offline   Reply With Quote
Old 07-07-2007, 02:26 AM   #10
Tech Apprentice
QuickRC's Avatar
Join Date: Jun 2007
Location: Gilbert, AZ
Posts: 75

All of the motors building the Epic based motors all get them from the same place so it all comes down to 2 things that seperate one tuner from the next. They are.....

1. Integrity. There are ways to cheat at anything and motor building is no exception. You can cheat by inflating your dyno results and you can cheat by advancing the timing - or both. Most motor builders are using the Fantom Facts Machine which is good since they are fairly consistent from one to the next but there are ways to artificially inflate the numbers on them. Also, it is easy to advance the timing and get higher power numbers - especially RPM. There's more ways to cheat but those are 2 ways.

2. Attention to detail in the building process. High volume will very likely means the motors are assembled, stuck on a dyno, get the sticker and slapped in a package and up for sale someplace. Sometimes you get a good one and sometimes you get a dud. A good tuner will do all of the following (not just say they do) check/zap magnets, PROPERLY align brush hoods, PROPERLY shim the armature to center of magnetic field AND shim to remove end play, cut the comm with a diamond bit (I use a marker prior to cutting to ensure the comm is round - Hint: look for a little marker line at the base of the comm), fully seat the bushings/bearings and ensure no binding and finally take the time to break in/seat the brushes.

How do you know who does this and who doesn't? Check end play - if the armature moves in more that .010" then there is too much slop. That will equal inconsistent performance since the armature can move in and out and the brushes won't seat in a consistent spot. Be sure the comm was cut with a diamond bit and is round - hard to check without a comm lathe but at least look at the finish on the comm - it should be very smooth and no filings in the slots. Look for neat soldering on the brushes. Look at the brushes after a while and see if they are centered on the comm (brush hood alignment). There are probably a few other things but this is a good start.

Honestly, anybody can build a fast motor with the right tools, experience, patience and attention to detail - it's whether they take the time to do so or not that makes the difference.

As far as power ratings on a stock moter... I would want to see at least 66 watts, at least 100 torque and RPM in the 20K range. Generally higher RPM motors have a little less torque and and higher torque motors have a little less RPM. For example one motor might be 19,500 RPM and 106 torque and another motor might be 21,000 RPM and 101 torque. I don't personally worry about effeciency.

I haven't seen any quality issues with the motors coming from Trinity, BTW. In fact I am seeing very consistent results on the motors I am building. I get a dud once in a while like anybody else but that's just how it goes.

Sorry for the long winded post - I hope it was helpful.
QuickRC is offline   Reply With Quote
Old 07-07-2007, 02:41 AM   #11
Tech Adept
peter p's Avatar
Join Date: Jun 2006
Location: Torquay
Posts: 199
Trader Rating: 2 (100%+)

Good post
peter p is offline   Reply With Quote
Old 07-07-2007, 08:59 AM   #12
Tech Elite
EddieO's Avatar
R/C Tech Charter Subscriber
Join Date: Oct 2003
Posts: 3,412
Trader Rating: 6 (100%+)

None of the top tuners use the fantom machine.........the thing is junk.....testing at 5 volts doesn't really tell you much, especially when the machine is guessing the torque calculation.

Later EddieO
EddieO is offline   Reply With Quote
Old 07-07-2007, 09:15 AM   #13
Tech Adept
tdu verney's Avatar
Join Date: Mar 2005
Location: Del City Speed Shop
Posts: 211
Default Trinity Motors

We have built Trinity motors for some time. With excellent results. The success with any motor is time invested. The Brood or any other motor may offer out of the box results but after a day run you’re rebuilding the motor back to zero. What changes are Com diameter, brush, timing, springs and friction tolerances need to be examined. Most racers will tear a new motor down right out of the box just to see what’s what and then rebuild to suit. As for Trinity considering the volume of motors they sell it's a competitive product you can win with.
tdu verney is offline   Reply With Quote
Old 07-07-2007, 12:11 PM   #14
Tech Legend
Wild Cherry's Avatar
Join Date: Aug 2001
Location: TRCR Modified Driver
Posts: 22,595

Originally Posted by EddieO View Post
None of the top tuners use the fantom machine.........the thing is junk.....testing at 5 volts doesn't really tell you much, especially when the machine is guessing the torque calculation.

Later EddieO
Just wondering Eddie , Is there a dyno that really works ?
Any driver can copy a great set up, a Champion however will steal it .
If Jesus returned as a Rc car he be a Rc10 B5M
George W. Cherry
Wild Cherry is offline   Reply With Quote
Old 07-07-2007, 01:03 PM   #15
Tech Elite
BlackedOutREVO's Avatar
R/C Tech Elite Subscriber
Join Date: Mar 2007
Location: CA
Posts: 3,788
Trader Rating: 67 (100%+)

i run a putnam stock motor right now

BlackedOutREVO is offline   Reply With Quote

Similar Threads
Thread Thread Starter Forum Replies Last Post
Trinity Co27 Monster Stock Pro Motors & Reedy Neo 2* BL Motors For Sale Leodis R/C Items: For Sale/Trade 17 05-11-2007 05:03 PM
Mod Motors, Stock Motors, Rubber Tires and a Novak Syns. Module Team Speedy R/C Items: For Sale/Trade 1 07-13-2006 06:28 PM
4 stock motors for trade 3 EXPRESS MOTORSPORTS,TEAM STOCK FANTOM speedemall R/C Items: For Sale/Trade 0 04-25-2006 05:14 PM
Stock Motors - Monster and Binary Stock Nexus R/C Items: For Sale/Trade 3 04-25-2004 02:47 PM
8 brand new trinity stock motors paradox blue endbell#2104 & new monster stock #2140 jason cheng R/C Items: For Sale/Trade 11 05-08-2003 05:33 PM

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 02:53 PM.

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

SEO by vBSEO 3.5.0