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Old 05-28-2005, 08:55 AM   #136
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Quote:
Originally Posted by dakrat
u saying it now, u know u wanna race at their level
NOPE never want to race at that level. I think once you get to that level there comes a great big burden to always win or TQ. I found this to be a hobby and by deffinition it should be an activity done leisurely. I like not having to worry so much and just focus on getting the best setup and trying my best not to hit anyone and still turn fast lap times. I don't ever want to get caught up in all that hype. Once it becomes a JOB it all changes.
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Old 05-28-2005, 09:48 AM   #137
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u have a point there
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Old 05-28-2005, 09:45 PM   #138
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The LRP sphere will most definately not work with Hacker brushless motors, nor will it work with, Lehner motors, Feigao, Kontronik, Plettenburg, etc...

Basically the Sphere cannot do sensorless motors.
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Old 05-29-2005, 09:47 AM   #139
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Default LRP in stock??

is it just the ESC they have in stock or also the motor?

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Originally Posted by tony2
i know that www.frontlinehobbies.com has them instock, its in australia though, but can ship to u.
Does anyone in the world have both the ESC and LRP motor in stock?
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Old 05-30-2005, 09:45 PM   #140
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Well with LRP & Reedy taking so long in releasing their Brushless System... Novak may now just have trumped them in the Sensored Brushless System market! They better get reay to lose some potential customers cause Novak's new GTB Brsuhless System simply looks Awesome! Checkout the small ESC and probably even more powerful Brushless Motor here:


http://www.teamnovak.com/products/br...tem/index.html


To the winners go the spoils.... to the Losers... well... Tough!
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Old 05-30-2005, 09:52 PM   #141
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Quote:
Originally Posted by STEALTH
Well with LRP & Reedy taking so long in releasing their Brushless System... Novak may now just have trumped them in the Sensored Brushless System market! They better get reay to lose some potential customers cause Novak's new GTB Brsuhless System simply looks Awesome! Checkout the small ESC and probably even more powerful Brushless Motor here:


http://www.teamnovak.com/products/br...tem/index.html


To the winners go the spoils.... to the Losers... well... Tough!

5 1/2 turn brushlessssssssss WOOT!
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Old 05-30-2005, 10:06 PM   #142
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dakrat - Yup, it's 5 & 1/2 Turn Brushless Motor!

Just know that the Turns on a Brushless Motor are different from those in a Brushed Motor. Basically, the GTB 5 & 1/2 Turn Brushless Motor is equal to a 7-8 turn Brushed Motor.
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Old 05-30-2005, 10:22 PM   #143
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Quote:
Originally Posted by STEALTH
dakrat - Yup, it's 5 & 1/2 Turn Brushless Motor!

Just know that the Turns on a Brushless Motor are different from those in a Brushed Motor. Basically, the GTB 5 & 1/2 Turn Brushless Motor is equal to a 7-8 turn Brushed Motor.
still better than........ehem........... woooot! im getting this one
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Old 06-01-2005, 03:07 PM   #144
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The internal resistance specs on the GTB are .00040 per phase, or .00013 as a brushed controler. That's ALOT better then the specs on the LRP...

Near as I can tell that's about the best specs on any brusheless system out, weither it's sensored or not.
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Old 06-01-2005, 03:52 PM   #145
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Dyno, what are the comparable specs for the Sphere? Could you point us towards your source?
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Old 06-02-2005, 07:14 AM   #146
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When I asked about the specs on LRP's international forum this is the response I got...

"@dyno: it works from 4 to 7 cells. We never give resistance figures for our products, we always give the rating "voltage drop @20A". Which is as following for the Sphere:
- brushless mode: 0.035V/phase
- brushed mode: 0.026V"

This was on a thread there that was simply called "brushless controler"...

Using Ohm's law, where resistance equals voltage/current, we get...

.00175 ohms for brushless mode and .0013 for brushed mode on the LRP.
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Old 06-02-2005, 05:50 PM   #147
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guys,

looks to me like the Novak probably specify the FET resistance differently to LRP. Basically let's not forget that there are two FET groups in series per each phase -they seem to have mentioned only one of them. Here is how the calculations go:

In brushless they say it's 0.0004ohm /phase
In brushed they say it's 0.00013ohm = 0.0004ohm / 3. This means they must be using all 3 bottom side FET groups and none of the high side FET groups, because they specifiy it's a racing fwd/brk only brushed mode.

Therefore this means that each FET group has 0.0004ohm and since there are always two of them in series for brushless operation the total resistance per phase is actually doubled, 0.0008ohm/phase

So I'd say that Novak's FETs resistace is still better than LRP, but not that much better as you might have originaly thought.

Cheers
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Old 06-03-2005, 08:05 AM   #148
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Well... I'll not begin to know how Novak is making use of the FETs, or exactly what they mean when they say .00040 ohms per phase... My assumption is that that means it's the total resistance of the controler per phase, and not just half of this total... but then I will fully admit I don't know this for sure...

Even if it is .0008 it's still less then half of what the Novak SS or the LRP is.

You may very well be correct AI2... I guess only time will tell.
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Old 06-03-2005, 10:15 AM   #149
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Quote:
Originally Posted by dakrat
5 1/2 turn brushlessssssssss WOOT!
Hold your horses.....go to Novak BL GTB thread, Charlie from Novak already said the 5.5 Turn and 6.5 turn on brushless motor is NOT the same (calculation) as the brush motor turns....he said the GTB 5.5 will be more like 9-10T motor speed........however, take it it is brushless, if geared correctly, it should be close to our 8-9T motor on the same car that we are using....that is perfectly enough for me.

He said their previous 5800 was like 15-19T speed, which was proved by tons of the racer that has the SS5800.........so his statment about the 5.5T = 9-10T should be very accurate.
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Old 06-03-2005, 09:53 PM   #150
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Your basically right but i heard a little different but its most likely wrong because a Novak driver told you.

I heard the 5.5 is equivalent to a 7t-8t motor and the 6.5 a 9t-10t motor.

Sean
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