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Old 08-08-2006, 11:39 PM   #1306
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Brushless motors are rapidly approaching the complexity of brushed with all the different motors and tuning options that are being made available. Presumably, once sintered magnets are legalized, there will be no reason to run anything else, simplifying the decisions. As it stands now, things are starting to get a little bit convoluted.
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Old 08-09-2006, 01:51 AM   #1307
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Quote:
Originally Posted by Marcos.J
what profile are you using? how much drag brake?
I'm running profile 1 with 20% drag brake.
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Old 08-09-2006, 02:18 AM   #1308
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Hey mate....

Kinda hard to compare. I've not seen the Nosram system, but there are 4+
4.5 drivers at my track and we can easily outpace nitro 2 speeds. We're all running mainly 3800's, all unmatched...I'd say it's pretty comparable to a 7t in decent tune. (Wouldn't be surprised if some motor genuis can get a 7t faster.. but it's definately moving..)

Got anyone else to compare with locally? That's prob the easiest way to compare and to see if there's a problem.

I've found even on our very large track (big enough that there are regular nitro 1:5 scale races), that the mootr likes to be round not much lower than a 10...

9.75 really isn't great as you lose on acceleration. Our back straight is a good 40m or so... I'd recommend you start at 10 and work to around 11 or so...

Remember that the BL trump-card is the ability to really rev out..

10.3ish seems stupid low gearing.. but it does get better when you run lower.

Just my observation - hope the issue sorts itself out for you...
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Old 08-09-2006, 06:20 PM   #1309
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AngryAsian made mention that BL "really like to rev out." On the topic of gearing a BL motor, is there a different method to doing so when compared to picking a gear ratio for a brushed motor?
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Old 08-09-2006, 07:04 PM   #1310
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rule of thumb is to use a pinion that is 2 teeth smaller than you would use for brushed.
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Old 08-09-2006, 07:45 PM   #1311
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I like to gear it for speed on the straight.

For a 4.5 start at around 10 for the FDR. Then gear up or down depending on how you compare in terms of straight-line speed.

Then - go nuts depending on how much battery capacity you have left in your packs. But be mindful that performance drops off when you gear it too low. Acceleration will suffer.

But i've found that if you can keep up with a 7t(or thereabouts) on the straight then you're about right. Yes yes, this is MY experience. If a 7t is just killing you, then substitue an 8t...
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Old 08-09-2006, 10:28 PM   #1312
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Novak made a heatsink for the velociti motors ,tower hobbies will have them soon
http://www2.towerhobbies.com/cgi-bin...?&I=LXNLZ3&P=7
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Old 08-09-2006, 11:09 PM   #1313
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Hmmm someone mentioned them before...

But what do they look like?! I hear they have an integrated fan mount!
Black sounds like a good idea though...
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Old 08-09-2006, 11:18 PM   #1314
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I wonder if it's this one?
http://www.rctech.net/forum/showthre...&page=23&pp=30
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Old 08-09-2006, 11:43 PM   #1315
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Hmm, Tower says it's going to be black.

I really like the one on the other TC5 prototype pictures.
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Old 08-10-2006, 12:18 AM   #1316
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No you can get black, purple and blue.
http://www2.towerhobbies.com/cgi-bin...P?&C=CKG&V=NOV
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Old 08-10-2006, 12:27 AM   #1317
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They'll come in black initially, then purple and blue...

someone linked the Novak prod page a little while back. I can't serach it for you b/c my connection has been shaped! So slow!

Sorry...
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Old 08-10-2006, 01:04 AM   #1318
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Huh, neat.

Novak Brushless + Sintered Rotor + Heatsink/Fan - Sensor Wire = WIN!
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Old 08-10-2006, 01:13 AM   #1319
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Great....The blue ones cheaper...!
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Old 08-10-2006, 04:33 AM   #1320
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Hey guys i just came back from the hobby shop with my new 5.5 brushless system and have instaleld it as per manual and stuff like that. The brushless sounds very different from a brushed motor, bu my question is it has like 3 light on does that mean i have drag brake on. I want to know how to turn drag brake off.

Thanks
Jamie
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