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Old 21-11-2007
Southwell Southwell is offline
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Default Bonded and sintered

What visible difference is there between these rotors? Ive never played with brushless before.
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Old 21-11-2007
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Centainly with regards Novak, the bonded (as with LRP) are literally wrapped in a fancy chord (like string). The sintered Novak one is nickel plated so it's a bright shiney colour.
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Old 21-11-2007
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Cool, thanks Dan. What do you run? Im guessing putting a sintered rotor in a originally bonded motor is fine?
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Old 21-11-2007
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I got told something about the bonded being moulded and the sintered being moulded under pressure?? something like that... I have bonded rotors in my LRP/Nosram motors - I have a sintered rotor but it's a bit too powerful so I've never raced with it.
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Old 21-11-2007
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Yea you can put a sinitered rotor in a bonded can such as an lrp one but i beleive it then makes it illegal. One of the disadvantages of bonded rotors are it can sorta wear out lol as the magnets can weaken and sometimes the string stuff thats on the rotor starts to come off and get in the rest of the motor.

A
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Old 21-11-2007
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Quote:
Originally Posted by Southwell View Post
Im guessing putting a sintered rotor in a originally bonded motor is fine?
as ash put mate not quite that easy ..
only the 4.5 & 3.5 are currently sintered to buy and there you cant put a sintered rotor in a 5.5 , 6.7 or 7.5 as there only available bonded..
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Old 21-11-2007
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Ah, fair enough, but non brca events are ok i take it?
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Old 21-11-2007
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Yeah, or just buy a Novak motor. You can run either in them, IMO a more reliable motor aswell
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Old 21-11-2007
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Quote:
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Yeah, or just buy a Novak motor. You can run either in them, IMO a more reliable motor aswell
It is Novak
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Old 21-11-2007
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Quote:
Originally Posted by Southwell View Post
It is Novak

ha ha , sorry mate thought you were talking about LRP & Nosram ones...
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Old 21-11-2007
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I shoulda stuck to brushed mate, much easier to understand
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Old 21-11-2007
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The Novak flat (as in not ribbed) cans came with both bonded and then later (briefly) sintered rotors. The rotors are interchangable (fit wise). All ribbed motors come with sintered rotors.

Putting a sintered rotor into a flat can is a grey area. Technically the motor is the same as the sintered one you could buy so to me there ethically is nothing wrong. Not sure that is correct to the letter of the law as it's written though.

In terms of what you want (Novak motors) the characteristics are different, as will your speedo and likely tranny settings different. So stick with one and work with it. For me that would always be sintered. They have a fraction more performance but the brakes are miles better, the speedo runs loads cooler, they are more reliable and less prone to short and long term fade. They are also more tollerant to gearing abuse, including delibertly overgearing if you want to.

My 5.5R was put in at the end of the last indoor finals and never (not strictly true) come out since.

In terms of the speedo setting, I run a lot less drag brake with the sintered and in 2wd have to turn the brakes down (I do this on the tranny) to about 80% as 100% is like throwing an anchor out the back.
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Old 21-11-2007
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Cool, thanks Dan, that helps clear up my mind a lot! I will be getting a 5.5 sintered anyway but for testing and setting it up a 6.5 with a sintered rotor that i begged off someone will do.
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Old 21-11-2007
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Are you running it with a GTB?
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Old 21-11-2007
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What about the "L" range of motors?

Could be ideal for Southwell with his heavy thumbs, especially for 2wd.

The L range of motors ie. 5.5L 6.5L etc. use a different winding pattern which as well as making the power delivery smoother they are also lighter in weight, more importantly than all that though they are Blue
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Old 21-11-2007
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Quote:
Originally Posted by super__dan View Post
Are you running it with a GTB?
Yep
Quote:
Originally Posted by Body Paint View Post
What about the "L" range of motors?

Could be ideal for Southwell with his heavy thumbs, especially for 2wd.

The L range of motors ie. 5.5L 6.5L etc. use a different winding pattern which as well as making the power delivery smoother they are also lighter in weight, more importantly than all that though they are Blue
I wouldn't say heavy Craig, more over ambitious
Smoother power delivery sounds better for me to be honist, my favourite motor of all time is a peak 10x6! Have you tried them out yet?
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Old 21-11-2007
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I've got one a 6.5L I run it nearly all the time. I describe the power delivery as less violent However I do very occasionally run a 5.5L in the 2wd too because where as I'd never run the 5.5R as low down it would be a beast, the L winds up more smoothly but is really quick topping out.

5.5R all the way in 4wd though as you can put the power down. The L would save the belts in a xx4 though, perhaps?
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Old 21-11-2007
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Dan .. please pop over to the brushless knowledgebase thread and post up your gearing info for the Novak R and L motors ....
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Old 21-11-2007
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are the Novak 5.5L and 6.5L motors in U.K shops yet??

i cant seem to find them, does anyone know where they are available?? or are they not??

thanks
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Old 24-11-2007
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Yes they are Bally has a 5.5L in MB models as we speak (Leeds). Well he did about an hour ago, says he's sold quite a few to buggy lads.
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