Wot brushes!

[Declan]

Hi all i need a new pare off brushes for my core 12x1
but i dont now wot brushes to use, i was wondering do you now wot brushes i should use for my core, because my moter needs skimming and new brushes
and im racing today.

[super__dan]

Orion brushes, silver braid IMHO, you could get the copper braid ones which last longer but give slightly less performance.

Dan

[John Stones]

harder brushes give you more low end punch, i think there might be a better phrase to be describe that tho. softer brushes give you a higher top speed on the straight, same with the different compounds, silver is more 'refind' so gives a higher top speed, and the copper brushes will give you more lower punch because they are less refind.

[Mark Stiles]

Depends how long you intend to use the motor before you skim it again, and also what your budget is.

The orion 2/6 run brushes (silver shunt wire) give better performance, but will only last half a dozen runs until they need to be replaced.

The orion 10/30 brushes (copper shunt wire) will give you at least 20 runs of wear, so using them is about 1/3 of the price of the 2/6's.

Unless you're a top driver, I would say use the 10/30's because the difference in performance between 10/30's and 2/6's will be minimal.

I use 10/30's for club racing, but switch to 2/6's for bigger meetings. To be honest, I don't notice that much difference (you could gain the time by taking a better line!). Both types are about £4 a pair, although if you buy 10 pairs they work out a bit cheaper.

The decision is yours!

[Brettbeck]

use the team orion checkerboards (1030) enduro's!

Brett

[cobra81li200]

Definately CS T0605. Last for ages, good puch provided you use stiff springs and a bit more timing.

Dec, you think my motors are fast that's what I do, and I hardly rebuild them after less than 10 runs (I usually race at DV and Dronfield both for training and race before I think about skimming them).

Besides Nigel carries them... They're a bit pricey, but as I said in the other thread, they're really worth it as they last for ages, makes your comm last longer, and don't suffer from overgearing/overheating.

I definately stopped using anything else.

[cobra81li200]

harder brushes give you more low end punch, i think there might be a better phrase to be describe that tho. softer brushes give you a higher top speed on the straight, same with the different compounds, silver is more 'refind' so gives a higher top speed, and the copper brushes will give you more lower punch because they are less refind.


Actually there's no point in talking of soft or hard brush as it depends on the make.

Only thing is more silver/copper increases punch but decreases top end as it sticks more to the comm. The brush is made of graphite and copper or silver. The graphite is the lubricant part of the comm (as it's got poor conductivity compared to copper/silver). So the more copper/silver the less lubricant, so the less top end.

Besides it will be harder on the comm as it both carries more current (so more prone to arcing) and is less lubricated (hmmmm might try some vaseline there ;D).

Once again it REALLY depends on the make, as for example the CS brushes are very easy on the comm yet they have 6% silver... So there are other components that makes a huge difference.

[Robfo]

I would have to agree with cobra the cs brushes are excellent. If you can get your head around spending £8 on a pair of brushes the first time, they do represent very good value for money aswell.