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Old 25-05-2012
fastinfastout fastinfastout is offline
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Join Date: Jan 2009
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Quote:
Originally Posted by AmiSMB View Post
Agreed most people when they run a lower kv or higher number of turn motor will normally adjust the gearing so that the top speed is equal or a bit less than the higher kv or lower turn motor. And these days with the ESC tuning options you can get a 10.5 to seem like a 6.5 as I have seen the Westwoods do at TORCH. The benefit with high turn lower kv motors is that you can tune them for performance but they take less current out of the batteries and you can get longer runtimes and they do not run as hot unless you really over gear them and or ramp up the boost and turbo on the ESC.

So with motors there are 4 variables that you need to look at which is number of turns, rpm/v (kv), spur gear and pinion gearing and the variable timing facility of the esc.

If you do not care about acceleration and want the fastest top speed then get the lowest turn motor with the highest kv you can buy and put on the smallest spur gear and largest pinion that you can fit to the car and wind up the esc but be carefull about the current draw through the esc and batteries as well as esc and motor temp. I did this on my ftx blaze and it was doing nearly 60mph in my road but bottom end was rubbish and ran very hot and when I tried to race with it it was useless!
that is so wrong.

boosted setups take way more mah out of the lipo.

with a mod setup, I can use around 1200mah.

with a higher turn 13.5 with boosted setup, it can use around 2500mah, and run alot hotter.

Now to the original poster, get a 8.5 for your 2wd. If you can outdrive a 8.5, than your a mighty fine driver and people will be knocking down your door 'giving' you sponsorship haha. You will find 90% of drivers will be going 'slower' with a motor hotter than 8.5
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