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Old 02-01-2009, 03:29 PM   #1
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Join Date: Jan 2009
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Default Can I safely run 58T and 21T?

I have a very stock rc car (himoto/hsp/hispeed) with a stock 540 motor but someone has put a large diameter 26T on it and the car is quite slow in acceleration, well.. extremely slow lol. I also need to replace the connectors with deans as the bullet has opened up in one of the connectors and creating bad contact.

So can i run a normal size 21T pinion on a 58T spur without killing anything?

Thanks alot
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Old 02-01-2009, 04:38 PM   #2
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Join Date: Apr 2007
Location: Boise
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I'm not familiar with those cars but it all depends on your motor temp. Investing in a little temp gun will help you a lot with learning gearing Keep the motor below 150*F or so and you won't smoke anything.

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Old 02-02-2009, 02:06 AM   #3
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The heat gun is a good idea, thanks

Well, the car didn't really have a load on it but i ran it off the ground for about 4mins and everything was stone cold, appears the 21T meshes fine too.

Ran it for a bit on the ground but had other problems to which i'll create a new thread

Thanks for the reply
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