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Old 01-03-2013, 10:56 AM   #1
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Default question for those who ran 27x1 brushed

what fdr did you aim for when running 1/10th onroad 27x1?

Clarification: 4wd touring car
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Old 01-03-2013, 11:08 AM   #2
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Much as it does today it depends on the motor. I remember being able to gear a P2K2 down to a low 6 and but a Green Machine 3 would burn at that same ratio so had to be run in the 7's.
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Old 01-03-2013, 11:11 AM   #3
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There were so many variables, it depended on the track layout and which motor you used as some revved higher while others had more torque and could be geared up. Even which brushes and springs you were running made a difference.
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Old 01-03-2013, 11:11 AM   #4
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Originally Posted by tcdrvr2 View Post
Much as it does today it depends on the motor. I remember being able to gear a P2K2 down to a low 6 and but a Green Machine 3 would burn at that same ratio so had to be run in the 7's.
Sounds about right, I think I used to aim around 6.5 as a starting point.
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Old 01-03-2013, 11:20 AM   #5
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Quote:
Originally Posted by tcdrvr2 View Post
Much as it does today it depends on the motor. I remember being able to gear a P2K2 down to a low 6 and but a Green Machine 3 would burn at that same ratio so had to be run in the 7's.
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Originally Posted by terry.sc View Post
There were so many variables, it depended on the track layout and which motor you used as some revved higher while others had more torque and could be geared up. Even which brushes and springs you were running made a difference.
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Originally Posted by Fuzzi0n View Post
Sounds about right, I think I used to aim around 6.5 as a starting point.
Thanks for the replies guys!

I took mine out yesterday geared at 4.3 and it was wrong. the motor i am using is a birdman (see pic) i didnt want to go buying a boatload of pinions trying to find the right gearing. the track i am running on is a long one (former go cart track like the ones you find at mini golf places) traction would be considered poor.



So instead of running a 100s and 40p i should run a 26 instead

http://www.arroyoc.com/index.cfm?fus...=Gear&Plot=mid
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Old 01-03-2013, 02:08 PM   #6
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It also depends on whether the motor was zapped or not , but in general 6.3fdr to 7.2fdr is where you want to be... A zapped 27t stocker pulls alot harder while remaining cool....
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Old 01-03-2013, 02:14 PM   #7
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I ran a zapped 27t trinity monster stock horsepower with lipos at 6.42fdr(small carpet track) versus the new 17.5t brushless motors, and the motor held its own, eventhough my setup and driving was not up to snuff ....
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