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Old 05-12-2007, 10:49 AM   #1276
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Quote:
Originally Posted by John Stranahan
. As far as the starting problem, I have suspicion most people don't notice these little things. It was plainly evident on the bench, even, with both a sensorless and sensored motor on the Mamba Max.
I suspect the same. I have a Mamba mini 6800, and it's fine, except in difficult situations. Like whren you're feathering the throttle though a low-grip corner with a big gear, or when the rear end's stepped out and you need to catch it, or after a crash when the car is half-rolling backwards, and, the most annoying of all, when you let the car coast, high-speed, and need to get back on the throttle instantly. There's always the slight hesitation, or a little 'think time'.
None of that stuff with sensored.
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Old 05-12-2007, 11:09 AM   #1277
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elvo-thanks for the Mamba report. It is very similar to my experience.

Note that TallyRC has exclusive rights to the "swiss cheese" comment with respect to my prototypes. I put on a special graphite bumper on the other chassis just for him. Alas some errant superglue has glued it in place and I could not transfer it to this chassis.

It is wearing trailing axles at the moment. Inline in the photo.

Those are lightening holes.

John
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Old 05-12-2007, 12:03 PM   #1278
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Originally Posted by Drewdc90
Hey guys, i picked up an old RC10 the other day and ran it today. I was very surprised with the performance of it considering its age. I ran a novak 4.5 sensorless with the GM 95. I ran a 90/15 and the motor and speedie came in luke warm.
Hey, how does the Novak work with the GM in sensorless mode? Other companies (ahem, CC) can't seem to get it right. Does the GM handle it okay?
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Old 05-12-2007, 12:24 PM   #1279
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I think the GM ESC can run any brushless motor, especially as you can adjust timing what is not usual for all ESC. I was reading in another forum a comment from someone who tried Novak Velocity 3.5 4.5 and 5.5 on the Genius 80 and 95 and according to him all of the motors were running on the GMs without any problems, sensored or sensorless didnīt matter.
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Old 05-12-2007, 12:28 PM   #1280
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Originally Posted by V12
I think the GM ESC can run any brushless motor, especially as you can adjust timing what is not usual for all ESC. I was reading in another forum a comment from someone who tried Novak Velocity 3.5 4.5 and 5.5 on the Genius 80 and 95 and according to him all of the motors were running on the GMs without any problems, sensored or sensorless didnīt matter.
Cool, thanks for the input! Sorry to drift off-topic John, information about these ESC's is hard to come by. I think the ultimate ESC will be one that can properly drive any motor in sensored mode or sensorless, and GM seems to be the closest in that regard. Hopefully Novak or LRP will step up to the plate in the future and unify the two styles of brushless so we can finally end the idea of a brushless "system."
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Old 05-12-2007, 01:01 PM   #1281
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I think as the desription of the thread contains brushless itīs not really offtopic.
I have searched a lot regarding brushless in the past as I want/need going in this direction also. There are a lot of systems now but for real competition use I personally think just GM, LRP and Novak are really interesting. The others just donīt work as good or has some flaws. I think the GM is the most flexible platform as there are much more options as any other system, itīs just not that easy to program for this reason also. LRP donīt offer that much options but seems more userfriendly, similar with Novak but from reading the manual I prefere the LRP. I also think LRP and Novak should add sensorless operation as an option but I doubt they will do.
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Old 05-12-2007, 05:48 PM   #1282
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Quote:
Originally Posted by syndr0me
Hey, how does the Novak work with the GM in sensorless mode? Other companies (ahem, CC) can't seem to get it right. Does the GM handle it okay?
The 4.5 ran fine, didn't cog at all and was very quick, I think GM have got the sensorless thing in the bag.
Drew.
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Old 05-12-2007, 11:05 PM   #1283
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Quote:
Originally Posted by John Stranahan
DrewDC90-Good luck with your car. It looks like it might not be an Associated car at all as it has Trinity on the Chassis. Maybe a Trinity Switchblade. Interesting front suspension, similar to a newly released car that Mathijs posted not to long ago.
John
Hey John, the Trinity stickers were in the box that came with the front end. It is Definately an Associated. I just changed the original front end to the NEW 1992 front that allows " reactive caster ". I am still learning to drive it after 3 years of touring car driving. The GM and Novak sensorless combo is really smooth from standstill to full speed. Just need some new tyres. The one on the car are 10years old. What are the best tyres to run on asphalt?
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Old 05-12-2007, 11:42 PM   #1284
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Drew-thanks. I did not recognize the front end in the pic. I use GRP tires pink rear and purple front on asphalt. Corally Jack the Gripper tire treatment helps a lot outdoors.

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Old 05-13-2007, 02:47 AM   #1285
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Thanks John, just one more question, what size bearings fit the GRP front wheels.
Thanks, Drew.
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Old 05-13-2007, 03:38 AM   #1286
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All of the wheels are using the same bearing size (outer diameter) regardless of brand. There are just 2 different inner diameter of bearings existing dependent of the front axle.
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Old 05-13-2007, 06:25 AM   #1287
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Most likely
1/8 x 5/16 flanged for the front wheels. Be sure and check out the first few pages of the thread. Lots of helpful tips there.
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Old 05-14-2007, 04:59 PM   #1288
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Mamba Max Novak 4.5R at 137F Track Temp (95F air temp)

The combo worked pretty good. Motor temp 170F after about a 5 minute run. The track was green and low traction, though. I swapped batteries one time it came out at 140F after a run. No puffiness. Normally I just charge it in the car for practice. And then the rain came. No good news from the front end version 3 yet.
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Old 05-15-2007, 10:33 PM   #1289
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Pictures of our latest race:
http://www.mijnalbum.nl/Album=IPOEW6OX
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Old 05-16-2007, 05:23 AM   #1290
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Hey Pro ten, you don't have any video's of these races do you?
Thanks John, I'll let you know how it goes when i beat the pro nitro tourers lol.
Thanks, Drew.
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