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Post by bondoman2k on Dec 22, 2010 23:40:12 GMT -7
Actually Ninja, it's listed under the BSRT Tjet parts section, so I guess technically that makes it a BSRT arm (or does it?). And, at least from what I saw there, it is 'currently available', but discontinued. But, my concern would be how much of it is "Mean Green" and how much is BSRT? Either way, I think if you go by the 'letter of the law', as in the 'written rules' it should be legal. Either way, I already have an arm, and 18 bux is out of my price range anyway.  So, whatever you guys decide, won't matter to me anyway. Ron (Bondo)  Lonestar Racing and Resins |
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Post by SKR on Dec 23, 2010 6:55:29 GMT -7
Within the spirit of the rules..... it would be legal as long as the factory soldering was not tampered with and was not dewound to meet the 5 ohm minimum. Also have to make sure the com plate (timing) was not adjusted (advanced) in anyway. Adding epoxy and balancing are legal. I'm not postive but what I think all of what BSRT did was just balance them and throw some epoxy on them to keep the windings intact. It's kind of like buying one of dynamic balances stock armatures. He takes the guess work out of balancing an armature for anyone that chooses not to do so themselves and has the equipment to get it balanced very well. I would suggest taking a look in tech tips below for some tips on balancing an armature to see if it is something you would be comfortable with doing yourself before spending the extra dough. Either way is legal as long as it meets the specs above.
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Post by scottman2007 on Dec 23, 2010 9:50:34 GMT -7
See this is what iam talking about, when we start making a class that has a bunch of Mods,i understand if you want to put a mean green arm in ,but then you have these expert racers ,now that want to start balancing arms and doing all of this stuff to them.and there are a bunch of racers that dont know much about all of this stuff,including me and this is what shys people away from classes like this.to me as soon as you allow things to be done to the parts,then it turns into a huge technical discussion/Debate on ..well can we do this or can we do that or is this legal.and it makes the class now way more technical and invloved than it needs to be,then you have less racers in the class.Perfect example is the MM/PS Class,and to me this class now is starting to go that way.Iam all for using a hotter arm,but leave it at that,you can use a mean green arm,but leave it alone.because to me it gets too technical and for me it takes the fun out of it,and then it makes it a game like chess,too much time and too much thinking.just my .02 cents.
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Post by SKR on Dec 23, 2010 10:30:17 GMT -7
See this is what iam talking about, when we start making a class that has a bunch of Mods,i understand if you want to put a mean green arm in ,but then you have these expert racers ,now that want to start balancing arms and doing all of this stuff to them.and there are a bunch of racers that dont know much about all of this stuff,including me and this is what shys people away from classes like this.to me as soon as you allow things to be done to the parts,then it turns into a huge technical discussion/Debate on ..well can we do this or can we do that or is this legal.and it makes the class now way more technical and invloved than it needs to be,then you have less racers in the class.Perfect example is the MM/PS Class,and to me this class now is starting to go that way.Iam all for using a hotter arm,but leave it at that,you can use a mean green arm,but leave it alone.because to me it gets too technical and for me it takes the fun out of it,and then it makes it a game like chess,too much time and too much thinking.just my .02 cents. Balancing was one of the rules from the get go Scott. I'm not changing and haven't changed the rules. The rules are laid out for all the classes that are going to be ran at my race. Sorry if there is not a class that suits your needs but I'm not changing the rules now to try and please everyone. You can find all the class rules in the NTRA section under the Rocky Mountain Nationals class rules section. Sam |
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Post by TGM2054 on Dec 23, 2010 10:39:40 GMT -7
Here's probably a dumb question, but is a balanced arm going to make that big of a difference in one of these cars?
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Post by scottman2007 on Dec 23, 2010 12:43:19 GMT -7
Sam iam not saying change the rules,iam saying when you allow arms and what not ,then letting the arms to be balanced and polished ,its start getting technical debate and some racers might feel overwhelmed thats all.iam not saying change anything,i just feel why not allow mean greebn arms without touching them,buy a mena green arm stick in and go racing.
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Post by SKR on Dec 23, 2010 13:49:28 GMT -7
No problem Scott. Just didn't want to start changing rules. Just a few notes on the MM/PS class. Myself and local racer Chuck came up with these rules in late 2007 and have only made 2 revisions. One was to bring the class minimum weight up to 21 grams and the second was to allow BSRT's new Ceramic grade motor magnets. Both of these rule changes were to bring the field even closer together. The new magnets are consistent in strength from one set to the othe runlike the stock Super G magnets. Super G magnets are still competitive but suggest going with the new ones if you are able to do so. We race this class weekly and the field usaully is only seperated by .03 so the chances of winning are really good for anybody that can cut a good light. I expect we will see the closest E/T's from TQ to the last qualifier in this class come March out of all of the classes that will be ran. It is geared for beginners and Pros to be able to be competititive with one another without breaking the bank too bad. MM/PS build thread and parts list: nitroslots.com/index.cgi?board=sdf&action=display&thread=1975TGM, Balancing does help. The smoother you can make your rotaing parts run the faster it will go. Arm Balancing Help: nitroslots.com/index.cgi?board=tdrt&action=display&thread=1736nitroslots.com/index.cgi?board=tdrt&action=display&thread=1121I thought we had another thread on balancing armatures using 2 razor blades. I'll do some more searching. |
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Post by ninjatek on Dec 23, 2010 16:02:22 GMT -7
The balancing tips on how to balance an arm using razor blades are within the S/S tune up tutorial. The photos are missing from the one on the forum. The S/S tune up tutorial can be viewed at the link below. www.ninjatekprojects.com/PDF/ssTuningGuide.pdf |
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Post by SKR on Dec 23, 2010 16:59:02 GMT -7
Here is that photo Cordell. I'll update that thread asap.  |
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Post by swamper on Dec 23, 2010 17:08:21 GMT -7
That is the balancer I use. Got all the parts to build it a home depo. It works great.
swamper
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Post by charley on Dec 23, 2010 18:39:39 GMT -7
I can understand what scotman2007 is saying, HOWEVER, as long as the parts are made available thru a distributor, then GAME ON. This, and another reason or two, is why I am not racing much "heads up class racing" in 1/24 any more. There were so many "back door" parts going around it wasn't even funny. I have read all the specs that Sam has, and even though I still don't know the difference between a T-Jet and a AFX car, I pretty much understand them. Still trying to get used to the different classes also, but as far as the motor rules.....if it's available....let the fun begin!!!!! After all, isn't this supposed to be fun and "challenge" your building qualities? Hell, everytime I get outrun, it makes me go back and try to figure out what to do next time. Sometimes I figure it out, sometimes I don't. On a good day, I have seen many slower cars win because the faster car slipped up and did something really stupid, or he didn't prep his car before the race. Just my thoughts. Help me out here Foamy......you been there...done that...just as I have  |
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Post by allstarhr on Dec 23, 2010 20:23:24 GMT -7
Heck, I agreed with Sam's idea too.  But I don't want him to get a fat head thinking EVERYBODY votes his way. |
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Post by sjracer on Dec 24, 2010 6:12:10 GMT -7
Their are alot of distributors/makers of motors as Sam mentioned Dynamic balanced, Alan Galinko ag&g hobbies, Jim Sgrig ( tjetsgrig on hobbytalk no website), Eric Hirt
( mobydidit)and tons of others. I personally don't know know how to and won't try since it is possible to make it worse than what you started with. I plan on building one with a balanced motor one with out. It would be an interesting post/video if somebody could show how to a good stock motor using some type of balancer and explain why one is better than the next.
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Post by sjracer on Dec 24, 2010 10:22:30 GMT -7
Sorry my typing skills suck, what I wanted to know is "how to pick a good stock motor using some type of balancer and explain why one is better than the next."
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Post by swamper on Dec 24, 2010 11:36:42 GMT -7
Balancing does not make a arm a better arm it helps it go up thru the rpms to top speed better. A unbalanced arm will go thru about 3 different spots as it accelerates . Its just like the tires on your car, at some speeds it shakes and goes away as you speed up. I work in a auto machine shop and have done a lot of engine balancing. A engine thats out of balance will start vibrating about 1200 rpm. When your in a car that the motors is out of balance the out side mirrors the image will start to blur.
swamper
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So, whatever you guys decide, won't matter to me anyway.
But I don't want him to get a fat head thinking EVERYBODY votes his way.