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Old 11-26-2006, 06:42 AM   #1
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Default brush serrations?

what the difference in brush serrations eg cross cut. hole drilled in middle. middle cut out etc. looking to get brush serrater anyone recommend one. don't think any do cross cut tho.
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Old 11-26-2006, 09:06 AM   #2
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Drilled/slotted brushes are different to those that are just serrated, the serrations are put on afterwards to help break in on the hard compounds.

The benefit of an angled serration is that it doesn't groove the comm during break in, unfortunately I think Trinity are the only people who make brushes like that.
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Old 11-26-2006, 11:25 AM   #3
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We had a similar discussion a while back on another forum;

Brush Discussion

Note, no two motors sem to behave exactly the same when mods are made to the brushes.

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Old 11-27-2006, 04:26 PM   #4
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so whats the best setup for a c219 indoors on big track. struggling to find top end speed.
tried red springs like i was told which was better still off the top guys tho must be something i aint doing right. im using 4499s tried gearings from 7.1 to 6.5 seems to make no difference. batteries ain't the problem there still quick.
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Old 11-28-2006, 06:37 AM   #5
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Quote:
Originally Posted by makytc4
so whats the best setup for a c219 indoors on big track. struggling to find top end speed.
tried red springs like i was told which was better still off the top guys tho must be something i aint doing right. im using 4499s tried gearings from 7.1 to 6.5 seems to make no difference. batteries ain't the problem there still quick.
Try 767 brushes and make sure your brush hoods are in alignment.

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Old 11-28-2006, 07:26 AM   #6
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Quote:
Originally Posted by makytc4
so whats the best setup for a c219 indoors on big track. struggling to find top end speed.
tried red springs like i was told which was better still off the top guys tho must be something i aint doing right. im using 4499s tried gearings from 7.1 to 6.5 seems to make no difference. batteries ain't the problem there still quick.

take the 4499`s out

also can you tell me what the fast guy`s are using (what type of motors atlas,Money motor etc & the overall gearing they are on

then i can work out in me head what you need to be on ,then we will go from there
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Old 11-28-2006, 08:32 AM   #7
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some people run 4499s, xxx's. 767's id say 90 percent of people run c219's with the odd atlas kicking about. had the magents rezapped didnt make 2 much difference. few mates run 4499s with a lot more speed. only thing i just though of is being an xray the motor could get hit on the side and knock the brush allignment out hmm have to have look at that. what sort of rpm should i be looking at for a good c219
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Old 11-28-2006, 08:45 AM   #8
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Integy makes a BrushMaster. It goes for about $60 USD. Serrates and crosscuts (not cross serrates). Does what's asked but hard brushes take a bit longer to serrate. I still use mine but do believe new brushes are better than doctoring used ones.
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Old 11-28-2006, 08:50 AM   #9
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Quote:
Originally Posted by makytc4
.. only thing i just though of is being an xray the motor could get hit on the side and knock the brush allignment out hmm have to have look at that. what sort of rpm should i be looking at for a good c219
Shoe goo a piece of bumper foam to the inside of the body opposite the motor. Gives you some protection without much weight.
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Old 11-28-2006, 01:15 PM   #10
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Quote:
Originally Posted by makytc4
some people run 4499s, xxx's. 767's id say 90 percent of people run c219's with the odd atlas kicking about. had the magents rezapped didnt make 2 much difference. few mates run 4499s with a lot more speed. only thing i just though of is being an xray the motor could get hit on the side and knock the brush allignment out hmm have to have look at that. what sort of rpm should i be looking at for a good c219
overall gearing ?? ratio ?? they are on
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Old 11-28-2006, 03:45 PM   #11
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are running anywhere from 7.1 to 6.8. ive been running down to nearly 6.5 still and struggling for top end. cars missile outta bends just not to go with on top end
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Old 11-28-2006, 04:47 PM   #12
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Quote:
Originally Posted by makytc4
are running anywhere from 7.1 to 6.8. ive been running down to nearly 6.5 still and struggling for top end. cars missile outta bends just not to go with on top end
If your car is that good out of bends, try gearing up even more, just keep an eye on the motor temps.

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Old 11-29-2006, 01:30 AM   #13
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Quote:
Originally Posted by makytc4
are running anywhere from 7.1 to 6.8. ive been running down to nearly 6.5 still and struggling for top end. cars missile outta bends just not to go with on top end

okay here goes
767 flatten the trailing & leading edge just a nats , this is to stop the the sharp edges from cutting into the comm soon as you fire it up
you only want to do a little (to much & you can lose 1 amp straight off)
then bung on purple/purple springs run up @2.0v for 2 min`s then thats it


if it`s still slow but another motor !!! only joking check you have full power on speedo , do make sure your batts are going to [email protected] 9.1 (ish)

make sure you are on 7.00 (we will go in the middle )

C2 are quite consistence between one from another so you will find the gear ratios should be very close
unlike co27t which can vary from one motor to another

ie;;carpetwars c2 were either 6.08-6.15 to be good but go to 6.00 or 6.23 then they are not good on track , yes they have a narrow gearing sweet spot
so you go on 7.00 for now
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Old 11-29-2006, 06:41 AM   #14
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ok ill give that a try see how it goes thanks a lot
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Old 11-29-2006, 07:27 AM   #15
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No probs
keep me informed
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