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Old 03-11-2007, 01:14 AM   #2761
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Originally Posted by johnnyblade666
moony where do you find the silver and copper solutions. what type of solutions are they? i'm very interested in trying this on my motors and any additional help would be greatly appreciated. thanks
@johnnyblade666 - You can find the information on my 12th scale site that is in my sig below.

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Old 03-12-2007, 12:00 AM   #2762
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how often should you change your brushes? and why do some people drill a small hole in there brushes? (on the side that touches the comm?)
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Old 03-12-2007, 01:28 AM   #2763
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Surreal-Changing of brushes depends.
Are we talking Stock,19turn or Mod?

Are you in the top 2-3 EVERY WEEKEND?Reason I say this is changing brushes often can help that lil bit but if your not at the top with setup and driving yet then this doesnt count towards you.

Are we talking big events or club racing?
When you notice the motor falling off it's good to change them.
All brushes are different and need to be replaced at different times.
Putnam Greens may need to be replaced quicker than F brushes,767's or 4499's(E brush)
Your question is kinda of a WIDE OPEN type question and can have many answers.

Drilling the hole in the face of the brush will make more edges on the brush for better current flow.This usually produces more watts on a dyno which means it adds power.
This is something you have to play with and see if it works for you.

Les
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Old 03-12-2007, 02:46 AM   #2764
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Quote:
Originally Posted by TexRacer
Surreal-Changing of brushes depends.
Are we talking Stock,19turn or Mod?

Are you in the top 2-3 EVERY WEEKEND?Reason I say this is changing brushes often can help that lil bit but if your not at the top with setup and driving yet then this doesnt count towards you.

Are we talking big events or club racing?
When you notice the motor falling off it's good to change them.
All brushes are different and need to be replaced at different times.
Putnam Greens may need to be replaced quicker than F brushes,767's or 4499's(E brush)
Your question is kinda of a WIDE OPEN type question and can have many answers.

Drilling the hole in the face of the brush will make more edges on the brush for better current flow.This usually produces more watts on a dyno which means it adds power.
This is something you have to play with and see if it works for you.

Les
1: a stock motor, as this is the STOCK motor forum
2: it will be club racing
3: i will be using a CO27 with 4499 brushes
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Old 03-12-2007, 05:11 AM   #2765
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19 turn is a stock class too.

my question relates to 19T. i helped my friend to skim his Komodo Dragon's comm. Comm wear seems to be quite considerable, after 2 race nights (only 9 runs in total since the motor was bought NIP).
i was even more surprised to see "pitting" on his brush surface. couldn't remove those with comm stick. what could be the cause of the pitting?
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Old 03-12-2007, 11:12 AM   #2766
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19t is not stock, thus 19t. 19t spec.
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Old 03-12-2007, 03:44 PM   #2767
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If u want to be pedantic, 19T is classified as 19T Spec for BRCA and Super Stock for Roar & AARCMCC… anyway .. any motor that's not modified, is “stock”.. dammit ..
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Old 04-01-2007, 09:46 PM   #2768
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Hi everyone,
I just want to know what spring combination will give me more RPM and what spring combination would give me more Torque? Im running a CO27 with 4499 brushes.

Thanks
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Old 04-01-2007, 10:45 PM   #2769
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Increase spring tension to increase RPM.....decrease it to increase torque....

The 4499 is a very RPMish brush, so thats a good place to start.

Later EddieO
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Old 04-05-2007, 08:54 AM   #2770
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Quote:
Originally Posted by macgyver1432000
Can somebody tell how many turns does a Tamiya Technigold & DynaTech motor have? Just for info archive. Thanks guys!!!
i got the dynatech 01R and the dynarun motor if u're interested. pm me
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Old 04-05-2007, 11:37 AM   #2771
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Quote:
Originally Posted by EddieO
Increase spring tension to increase RPM.....decrease it to increase torque....

The 4499 is a very RPMish brush, so thats a good place to start.

Later EddieO
so a purple spring would give you more rpm than a green?
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Old 04-05-2007, 11:38 AM   #2772
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has anyone got a good spring + brush combo for a 27t roar? thanks stephen
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Old 04-05-2007, 11:46 AM   #2773
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Quote:
Originally Posted by stephen hilton
so a purple spring would give you more rpm than a green?
Yes - it would push the power band toward the high RPM range.
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Old 04-05-2007, 11:48 AM   #2774
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Quote:
Originally Posted by stephen hilton
has anyone got a good spring + brush combo for a 27t roar? thanks stephen
Since the EPIC ROAR already has lots of RPM, I tend to build them with a Red/Green combo so they have a bit more low end grunt. If you want to try something a bit different brush wise, I'd try the F-brush or 4499.
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Old 04-05-2007, 11:56 AM   #2775
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