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Old 09-08-2009, 09:38 PM   #1
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Default Larger motor rotor better for a truck?

I have been told that a larger rotor in a brushless motor will give you more torque. I have a Tekin 10.5 in my T4. If I changed from the stock 12.5mm to the 13.0mm rotor what advantages/disadvantages would I expect to see on a smaller size, high bite track?
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Old 09-08-2009, 09:58 PM   #2
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Where's your timing at and what speedo are you running?

I run a redline 10.5 in my 4w and 2w in the mod classes and both have tons of power. Mine are at 12-14 degrees on the motor and 10 in the speedo. Timing will make a much bigger difference than a rotor
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Old 09-09-2009, 11:29 AM   #3
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I'm running a Tekin RS w/o a hotwire setup and I have about 15* of motor timing. I actually replaced my 12.5mm rotor with a 13mm by mistake after it had become damaged. I was trying to figure out if this was going to make a noticable difference the next time I run it wiether it be for better or worse.
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Old 09-09-2009, 11:43 AM   #4
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its not that big of a change so chances are you wont notice much.... I would pick up the hotwire and download version 200 from tekins site and start using/tuning the turbo feature.... your truck will be was faster with a good setup on the speedo with that software

I wasnt aware that tekin made a 13mm rotor?
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Old 09-09-2009, 01:46 PM   #5
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yeah....they make a 13mm hi torque rotor, they sent me one about 3 weeks ago to try out in my 21.5 4s crawler
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Old 09-09-2009, 01:55 PM   #6
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Right on.... I cant imagine having any more torrque... my buggy will flip over on demand as it sits now
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Old 09-09-2009, 10:15 PM   #7
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Actually they list a 13mm and also a 13mm high torque rotor. Wonder what the difference is.
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