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Old 01-20-2008, 12:32 AM   #856
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Granpa,
Do you mind telling what you are using to get your rpm and amp draw? Cause I have been working hard on trying to get 600 extra out of mine. Just wondering what brand or type of dyno you are using.

Thanks in advance, Sid
I'm using an Orion motor performance monitor. It's pretty much like the Muchmore in design and features. The figures were taken at 7.2 volts as that seems to be what most people were using on this thread. Do most of my own comparisons at 5 volts tho. A lot of dynos are popping up on e-bay right now as the brushless motors are taking over in TC racing. Picked up a CS Electronics and a Tekin for very little money recently and am still trying to figure out what all the #'s mean.
A careful low voltage breakin and polishing the bushings should net you at least a thousand more rpm w/out resorting to anything else. That should put you in the mid 18's on most of the new Johnsons. Check out some of SirSwiftAlots old posts. He"s shared some of his pet tricks and he has the strongest motors in the group that I race with. Also, there's nothing wrong with his keyboard. He's like all the good motor guys----- he'll give you some help but you'll have to figure the rest out yourself.
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Old 01-20-2008, 02:11 PM   #857
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I'm using an Orion motor performance monitor. It's pretty much like the Muchmore in design and features. The figures were taken at 7.2 volts as that seems to be what most people were using on this thread. Do most of my own comparisons at 5 volts tho. A lot of dynos are popping up on e-bay right now as the brushless motors are taking over in TC racing. Picked up a CS Electronics and a Tekin for very little money recently and am still trying to figure out what all the #'s mean.
A careful low voltage breakin and polishing the bushings should net you at least a thousand more rpm w/out resorting to anything else. That should put you in the mid 18's on most of the new Johnsons. Check out some of SirSwiftAlots old posts. He"s shared some of his pet tricks and he has the strongest motors in the group that I race with. Also, there's nothing wrong with his keyboard. He's like all the good motor guys----- he'll give you some help but you'll have to figure the rest out yourself.
Do you know how to get in touch with him? I need to ask him a question from one of his previous posts.

The newer motors you are referring to are the 540J correct??

We run TCS in Memphis and I need a no cheato, no cranko motor to try and keep up with the guys like Doc. Thats what I'm wishing for anyways.
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Old 01-20-2008, 03:09 PM   #858
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Me too !!!
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Old 01-20-2008, 04:12 PM   #859
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Do you know how to get in touch with him? I need to ask him a question from one of his previous posts.

The newer motors you are referring to are the 540J correct??

We run TCS in Memphis and I need a no cheato, no cranko motor to try and keep up with the guys like Doc. Thats what I'm wishing for anyways.
Go back and find one of his old posts on this thread and PM him. He's a good guy and might be able to help you. With that being said, I sorta think that Doc's in a class by himself.
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Old 01-20-2008, 06:21 PM   #860
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Go back and find one of his old posts on this thread and PM him. He's a good guy and might be able to help you. With that being said, I sorta think that Doc's in a class by himself.
Its kinda hard to catch up with 20 yrs experience. YGPM
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Old 01-20-2008, 08:37 PM   #861
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I have asked this question in another thread, but this may be the better spot to get a response.

I was going through a box of old rc gear from the mid 80's and came across a couple of tamiya rx-540vz techingold motors....would be at least 20 years old. Have given them a clean, and have been giving them a run in the TA05with a Spur 70 Pinion 25 rolloyt 31.91...it goes great, didn't realise how good a motor they are, but I have 2 questions

1. what would be a good starting point for rollout for the TA05 with rubbers and a free flowing track.
2. any idea's where I might be able to buy replacement brushes for them.
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Old 01-21-2008, 03:54 AM   #862
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start at 35mm rollout and work up to 45mm rollout. 5.7-1 and go up
on a large track i run 44mm rollout but the motor gets real hot and thats with a fan
hope this helped
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Old 01-21-2008, 04:00 AM   #863
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if the starting point is to be 35mm, am I best to ensure I end with with as small as pinion as possible to achieve this rollout so that this reduces the strain (and therefore the heat) on the motor.

in other words, a bigger spur will be better then a bigger pinion to achieve a 35mm rollout
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Old 01-23-2008, 02:17 AM   #864
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Smile epoxy

Why does adding epoxy adds rpm to the motor?

Is it possible to pull out a silver can armature and put a sports tuned armature in the silver can thus increase RPM because of a change of armature???
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Old 01-23-2008, 02:47 AM   #865
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Why does adding epoxy adds rpm to the motor?

Is it possible to pull out a silver can armature and put a sports tuned armature in the silver can thus increase RPM because of a change of armature???

YOu add epoxy to balance the armature. This lessens vibration which kills rpm.
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Old 01-23-2008, 05:19 AM   #866
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No way you can properly rebalance an armature while it's in the can. The arm would have to be removed and put into a balancing jig that eliminates all external/non weighting effects (e.g. magnetic field in the can,not level, etc.), and as we all know removing the arm is a no-no. Even then it takes some experience at this stuff to improve the balance job. Otherwise you're just adding weight and/or throwing the arm out of balance.

A great Urban Legend, but not something that bears fruit.
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Old 01-30-2008, 09:09 AM   #867
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off to the frond page wheeeeeeeeeee
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Old 02-07-2008, 12:09 AM   #868
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Its TCS time lets hear some of the new experiments or success story's from the old black book of silver can tricks season. I tried throwing my motor at a locomotive the other day but I had really bad readings after that. No wait......... thats all wrong what I meant was I had really bad readings on my dyno then I threw it at the train.

P.S. Nice to see you on the front page again!
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Old 02-07-2008, 06:10 AM   #869
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Originally Posted by Granpa View Post
Just some random thoughts from someone who's not an expert on these motors, but someone who's ruined a lot of motors trying to be.
1. ...
2. ...
3. ... I stumpled across one "secret" when I accidentally dropped a motor on my work bench. What is it? That's my secret.
Granpa, mine accidentally dropped on the concrete and now it has a lot more RPM's!
Now I know your secret too !
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Old 02-07-2008, 09:19 AM   #870
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Quote:
Originally Posted by SirSwiftAlot View Post
Its TCS time lets hear some of the new experiments or success story's from the old black book of silver can tricks season. I tried throwing my motor at a locomotive the other day but I had really bad readings after that. No wait......... thats all wrong what I meant was I had really bad readings on my dyno then I threw it at the train.

P.S. Nice to see you on the front page again!
ahh yes, a wonderful time of year indeed... the silly season is over and its time for all the silver canner's to come out hibernation, emerge from their winter tune/test caves for early season displays.

Who will be the 2008 TCS “King of the Can” now that Mr. White has earned his trip to Japan? Will Brandon’s locomotive impact theory prove dominate? Will the rccardr’s team of MIT intern’s prove to be a good investment? Will Team Wier’s 2 car team be outlawed by TCS race management due to drafting benefits or has Mr. White passed on his tuning secrets to his band of local followers?

Will FMW institute an RPM rule this year that negates the off season insanity that is silver can racing? Many questions yet to be answered young Padawan's...

For those racing in the Trackside event know that prying eyes will be taking copious notes for those of us watching the parade from the curb.

Best of luck all,

John

Last edited by madjack; 02-07-2008 at 10:04 AM.
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