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Old 02-12-2010, 08:11 PM   #1306
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Originally Posted by nc state View Post
Granpa, Yes the brushes were moved away from the comm.
I used a piece of plastic spru from a model kit. The spacinig was just right
to insert the spru into the end bell and move the brushes. Once that was
done i used 4000grit sand paper. The comm came out great, but no
amp draw.
NC State
There's the problem. Can't do that. I'll let Doc explain why as my reasons may not be exactly correct and we can both learn something.
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Old 02-12-2010, 10:08 PM   #1307
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Default 540J

Grandpa, One thing i found out, It does not take mutch to twist the brush
spring. I can tell by looking through the slot that the one of the brushes is not seated right. So in the future i will only use the water-bording method for breaking in a 540J!!!
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Old 02-16-2010, 12:25 PM   #1308
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Hey Doc,

You have a PM from an old Mini racer from Wisconsin.
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Old 02-28-2010, 02:47 AM   #1309
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Originally Posted by TBOTubed View Post
Gotta used GTX out of my 415 I was about to put on Trade Me here in NZ.
Give me a PM if you want to check it out
I upgraded to a Novak GTX esc... thanks again TBOTubed.
No difference in speed,but motor sounded less strained accelerating out of hairpin corners. HUGE difference in brakes. Also alot smaller than my old esc. Well worth the upgrade.
I tried another silvercan (I have a few). The first replacement motor I tried gave me allmost 2secs faster per lap !!! - it was a Johnson with shiny (chromed ??) metal can.
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Old 02-28-2010, 03:00 AM   #1310
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Best speedy for brushed 540 motor is the LRP QC3 without a doubt. Ive tried them all and running profile 5 kicks ass.
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Old 03-01-2010, 02:06 AM   #1311
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Best speedy for brushed 540 motor is the LRP QC3 without a doubt. Ive tried them all and running profile 5 kicks ass.
Thats why its so hard to find a used cheap one on US ebay
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Old 03-01-2010, 03:16 AM   #1312
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Hey Doc,

You have a PM from an old Mini racer from Wisconsin.

Mr. K it's Mr. K !!! It's getting close to a little mini racing in Wisconsin!!!! Are you ready?!?!?!?
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Old 03-01-2010, 05:26 AM   #1313
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Thats why its so hard to find a used cheap one on US ebay
Have you had many problems with the QC3 burning up? I saw one go up in smoke last weekend and it was NOT being abused by any means.
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Old 03-01-2010, 05:34 AM   #1314
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Thats why its so hard to find a used cheap one on US ebay
You're looking in the wrong place. Try German ebay.
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Old 03-01-2010, 10:25 PM   #1315
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You're looking in the wrong place. Try German ebay.
did try last time you(?) recommended it
have a few issues with the language being in German; How inconsiderate
Is there a translate function for the German ebay??

Last edited by 1101; 03-01-2010 at 11:27 PM.
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Old 03-01-2010, 10:57 PM   #1316
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Originally Posted by minimadman2003 View Post
Have you had many problems with the QC3 burning up? I saw one go up in smoke last weekend and it was NOT being abused by any means.
I have a couple, no problems to date (silver can use only though).
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Old 03-02-2010, 01:08 AM   #1317
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Originally Posted by 1101 View Post
did try last time you(?) recommended it
have a few issues with the language being in German; How inconsiderate
Is there a translate function for the German ebay??
Well, it takes a little bit of effort. Use google translator and people become very friendly indeed. Trying to use a translated version of the page is more difficult and sometimes it just doesn't work. I use a Mac and I suspect some translator software or whatever may not be that Mac friendly. Being a total ignorant in any computer related matters, I don't know what to do myself so I just navigate the german version.

Just search for "LRP" on german ebay and then narrow it down after you see what they have there.

Sure, they're not every day on ebay, so you might need a bit of patience, but I managed to land three of them in about six months. One was brand new in box too. Total cost was about 200AU$ for all three including postage (ask to be sent as "paeckchen" - that is a small airmail parcel with fixed price, about 10 Euro or something like that).

Another tip is to include Swiss and Austrian ebay in your search too. Same language, same deal.
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Last edited by niznai; 03-02-2010 at 02:00 AM.
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Old 03-02-2010, 06:05 AM   #1318
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Originally Posted by vazzo View Post
Best speedy for brushed 540 motor is the LRP QC3 without a doubt. Ive tried them all and running profile 5 kicks ass.
Vasso i like the MRT PRO seems to work well.
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Old 03-03-2010, 07:49 AM   #1319
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Default Dyno testing.

So I picked up an old Fantom facts machine this week (wanted one for a long time).
I dug out all the old 540's I had and went to town.

Motors tested were "new style" 540j's (two fresh from my f103's)

Older 540sh (looks just like a J but is not epoxy balanced) and some "white end bell" Johnson 540's (most pulled from Lunchboxe's ect)

A silver mabuchi 540 (don't know where it came from).

A BOAT LOAD of Mabuchi black end bell 540s.
One being brand new pulled from my Super champ.

All motors were cleaned and oiled before running.

I have all the numbers if anyone wants to pm me for specific info but for now
I will give you power reading,max rpm,torque and efficiency.

Top of the heap the "new" 540j's
Best motor overall.
pwr 35.19 max rpm=12740 tq=695 eff=78


avg 540j (3 motors)
rpm 32.71 rpm 12335 tq 667.5 eff. 75.5
-------------------------------------
Next were the cream end bell 540's
best motor
pwr 34.04 rpm 12540 tq 685 eff 75


avg (5 motors)
pwr 31.19 rpm 11895 tq 660.3 eff 73.5
-------------------------------------------
Worst of the lot the 540 black end bell mabuchi
(sucks as I have tons of them)
Best motor
30.68 rpm 11915 tq656 eff 66.5
avg(8 motors)
29.50 rpm 11866 tq 649.19 eff 61.99
--------------------------------------
Johnson "sh"
pwr 31.45 rpm11726 tq 651 eff 82!
---------------------------------------
Silver can
30.11 rpm 6987 tq644 eff 75


I ran them all four times and averaged the numbers.
Attached Thumbnails
Silver Can Motor Tips/Tricks-lot.jpg   Silver Can Motor Tips/Tricks-j.jpg   Silver Can Motor Tips/Tricks-wht.jpg   Silver Can Motor Tips/Tricks-met-mabu.jpg   Silver Can Motor Tips/Tricks-champ.jpg  


Last edited by j.d.roost; 03-03-2010 at 08:04 AM.
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Old 03-03-2010, 07:59 AM   #1320
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Quote:
Originally Posted by j.d.roost View Post
So I picked up an old Fantom facts machine this week (wanted one for a long time).
I dug out all the old 540's I had and went to town.

Motors tested were "new style" 540j's (two fresh from my f103's)

Older 540sh (looks just like a J but is not epoxy balanced) and some "white end bell" Johnson 540's (most pulled from Lunchboxe's ect)

A silver mabuchi 540 (don't know where it came from).

A BOAT LOAD of Mabuchi black end bell 540s.
One being brand new pulled form my Super champ.

All motors were cleaned and oiled before running.

I have all the numbers if anyone wants to pm me for specific info but for now
I will give you power reading,max rpm,torque and efficiency.

Top of the heap the "new" 540j's
Best motor overall.
pwr 35.19 max rpm=12740 tq=695 eff=78


avg 540j (3 motors)
rpm 32.71 rpm 12335 tq 667.5 eff. 75.5
-------------------------------------
Next were the cream end bell 540's
best motor
pwr 34.04 rpm 12540 tq 685 eff 75


avg (5 motors)
pwr 31.19 rpm 11895 tq 660.3 eff 73.5
-------------------------------------------
Worst of the lot the 540 black end bell mabuchi
(sucks as I have tons of them)
Best motor
30.68 rpm 11915 tq656 eff 66.5
avg(8 motors)
29.50 rpm 11866 tq 649.19 eff 61.99
--------------------------------------
Johnson "sh"
pwr 31.45 rpm11726 tq 651 eff 82!
---------------------------------------
Silver can
30.11 rpm 6987 tq644 eff 75


I ran them all four times and averaged the numbers.
Interesting data for comparisons.

just a couple questions on your Fantom - where you running the steel or aluminum flywheel, and were you using the Facts II software, or the PVFactsII program (for some reason, they give slightly different results on my machine)?
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