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BRS	10-12-2009 04:54 PM

Leccy noob advice

Bought a Cat SX off the RC TV guy Nick to play with whilst my nitro fun is underwater...

I have a Castle Sidewinder brushless combo coming with their CMS5700 motor
can someone advise me on a pinion size please?

When people state i have a So&so 5.5 motor is that 5.5 the motor kv rating does that make this Castle one a 5.7?

Help a thicky

cheers

BRS	13-12-2009 09:52 PM

Either I asked a really stupid question or non of the 108 views knows the answer?? :cry:

Dazzler

13-12-2009 10:09 PM

I'm one of the 108 - I don't know the answer, but I'm sure it doesn't work like that... I'll have a look to see what I can find out...

steelie600

13-12-2009 10:09 PM

sam the 5.5 refers to the number of turns on the motor and iirc 5.5 is roughly equivalent to a 9 turn brushed.

In simple terms its gonna go like smelly stuff off a digging stick!!

Dazzler

13-12-2009 10:13 PM

Quote:

Originally Posted by BRS (Post 319943)

Looking at the Novak and the castle specs, i'd say that the motor you have, 5700Kv, is equivalent to around a 7.5 Novak brushless, the 7.5 is 5800Kv.

Castle quote it as being equivalent to a very good, 9 to 10 turn brushed motor.

What size spur is currently fitted?

BRS	14-12-2009 09:00 PM

Ah right cheers I looked on the novak site they have a chart, it refers to the amount of turns then.

The spur gear is the standard one I presume its the P Booth sig addition used once .... not sure if that 83?

Castle hasnt arrived anyway yet looks like I've been pulled up by customs again :cry:

Jeremy Blair

14-12-2009 10:11 PM

Track?

What size track are you runing on?

I would start around 21 on pinion but that just depends on track. Also if your bashing dont let the motor get over around 160-170 just change the pinion to achieve the proper heat of the motor.
Jeremy

BRS	15-12-2009 09:28 PM

The Castle combo turned up today and I had ordered a 21t pinion that came the other day.

Holly flip its quick !! Just playing about at home I'll keep an eye on the motor temp thanks..

One thing that was a pain was the Castle motor has three screws through the can either end so you cant slide it into the Cats motor mount without removing them.. doh

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