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Old 09-10-2006, 11:13 AM   #286
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I'm looking for options to run at a 24 hours endurance race where runtime is key. What would be the runtime of a 13.5 + Orion Platinum?
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Old 09-10-2006, 02:25 PM   #287
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If you continue to gear up does the motor get hot or just doggy?

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Old 09-10-2006, 02:28 PM   #288
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I geared mine up until it got really slow out of the turns and the temp never got over about 120. I imagine if I were a better driver I could have done more with that gearing, but I still require a little punch out of the corners at my current level.

I hear the oval guys gear them until they're right on the edge of thermaling, and can get a tiny bit of advantage over stock by doing so.
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Old 09-10-2006, 02:34 PM   #289
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Man you are quick.... you must wi-fi in your head... thanks. FYI ours would just go faster and faster until you overheated it or thermaled the contoller. Oval is likely hot due to rpm and commutation heat not power.

Brushless motors get hot with no load at constant high rpms.

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Old 09-10-2006, 02:39 PM   #290
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Quote:
Originally Posted by TeamTekin
Man you are quick.... you must wi-fi in your head... thanks. FYI ours would just go faster and faster until you overheated it or thermaled the contoller. Oval is likely hot due to rpm and commutation heat not power.

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You're the second person to say that in the last 5 minutes. I may need to ban myself from R/C Tech for a few weeks to reclaim some reputation. :-D

My experience with the 4300 and 13.5 is that they will go faster and faster with more gear, until they shut off from heat. Since I'm not the most skilled driver, at some point the slow pull out of the corners doesn't make up for the increased speed on the straights, and slows me down. I imagine a better driver could better leverage the increased speed.

Since sintered rotors don't seem to heat up much, I could see that being a big advantage in the right hands. It's slower for me, at this level.
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Old 09-14-2006, 11:06 PM   #291
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Well I got one of these new motors. And no gear chart for the 13.5 on the instruction sheet. I like what Novak is trying to do. But at least give a starting point for the motor. But thanks to RCtech and you guys. I have an idea of what to run.
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Old 09-15-2006, 06:42 AM   #292
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Since I 've been running the 13.5 with the magnet that came with it the gear ratio is the same as a brushed motor. If I try to go several teeth over I overheat in the last minute( 6 minutes) of the race.Now I've got the sinster magnet to try out and next week I'll be able to give you the difference hopefully.
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Old 09-15-2006, 11:10 AM   #293
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Sinster magnet... in the 13.5 motor... When will this be available to the market?

Also, since both Novak and Trinty are using this, I guess we will see a change in the ROAR rules very shortly

Also, since the 13.5 motor has bearings in it (in place of the bushings) I guess ROAR will have to update this rule also for stock motors, allowing bearing. But then 13.5 motor will be a little slower then a normal stock motor, correct?
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Old 09-15-2006, 11:16 AM   #294
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Quote:
Originally Posted by cvt01
I'm looking for options to run at a 24 hours endurance race where runtime is key. What would be the runtime of a 13.5 + Orion Platinum?
I did an Enduro with the 4300 and Platinum 4800. That got about 19 min at a relatively low gearing (about 2-3 lower then I ran for a 5 min race). You gotta make sure the 4800 gets fully charged before going back on the track. Takes longer then you think. We found if we didnt the batteries would shut off after a hard hit.
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Old 09-15-2006, 11:26 AM   #295
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bvoltz, I've got a Velocity sintered rotor. I'll check to see if it fits the Novak 13.5 Stock BL.

I was planning on doing some testing this week or next with the 13.5 with both rotors - club rules require me to be in mod - we'll see how that works. For the Main I'll use my 4.5 or 6.5...
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Old 09-15-2006, 11:41 AM   #296
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From Novak's site:

Quote:
Originally Posted by teamnovak.com
The Nickel-plated Sintered Neodymium rotor comes standard with the Velociti 3.5R Brushless Motor. It can also be purchased separately as an accessory item (#5908) for the following products: Velociti-series motors, SS13.5 (#3413), Crawler (#3418), and for SS5800 (#3400) and SS4300 (#3401) motors that have had the Velociti upgrade end bell installed. No modifications to the motor or ESC are needed. Simply remove the standard rotor and install the new rotor.
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Old 09-15-2006, 01:44 PM   #297
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You'll need the upgraded endbell to use it in an SS motor, including the 13.5, 4300 and 5800.

My 13.5 has the smaller bearing in the endbell since it's the old SS style.
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Old 09-29-2006, 09:37 AM   #298
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It looks like the brushless 13.5T motor is now readily available. Tower has them fully stocked, and I'm sure you can get them through your local hobby store as well.
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Old 10-01-2006, 08:00 PM   #299
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mmmm, I just ordered mine, now to get a GTB...
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Old 10-01-2006, 08:18 PM   #300
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Can someone let me know what final drive or rollout in inches that they are using with the 13.5 in Touring cars?

Thanks.
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