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Jahay
RC-Monster Titanium
 
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Posts: 1,007
Join Date: Apr 2010
03.30.2011, 12:48 PM

yes you are both right... im having a hard problem gearing right...

I wouldnt have a problem if i was running my Maxx sized badland tyres as i can gear it just right. But with the baja tyres increasing my roll out, makes things very difficult.

Choosing an adequate motor is proving difficult... the 1527 is perfect. But after the amount i have dropped on the savage already, i need to delay the motor for now. i will most probably pick one up at some point in the future. But right now i cannot.

My 1520 has literally had 2 runs on it. Trying to keep it as fresh for this build as possible :)
I would run 8s, but that is not an option just because i am being stubborn. If i wanted to run 8s, i would have gotten the 8s XL controller.

I will be running 2 3s lipos in battery boxes on the side of my savage and then have space for up to a 6s lipo in my rear tray... So i have a lot of flexibility.


I have been very impressed with the 1520 so far. It doesnt get above 140F on a 16lbs savage geared for 56mph on 6s and that is me doing speed runs back to back.

So if i gear the truck down to a 10t pinion (yes it is small) with the baja tyres i get a top speed of 48mph on 6s... and on 9s i get 70mph. I do not see a problem with this, considering this is what i used to do with my 2200kv motor and switching between 4s and 6s and keeping gearing the same.

The truck will be designed for general bashing and large open spaces as there is no reverse. I will prob never use prolonged WOT situations but i believe we under-rate this motor. It has been impressive so far!


Once i have everything mocked up in my chassis, and i know how much space i have to play with for a motor, then ill see... but how it is looking I will probably stick with the 1520 for now, and work out a way of running a 10t pinion (at the moment i have a 12t pinion on there but i will struggle to get a 10t on because my brake system is in the way :-/ and im struggling to get the motor close enough for a decent mesh.


If it blows... ill look into the 1527 or leopard...

BUT i have a question... If my motor blows a rotor... Will my ESC or lipos sustain any damage? I can afford to lose a motor, but not all my electrics!


Guys! Thanks a lot for your help! Appreciate the fast replies!

edit: I will run this on 8s occasionally as i have 8s worth of hyperion g3 6500mah lipos :)
i will use 40c turnigys for 9s as they are so cheap

Last edited by Jahay; 03.30.2011 at 12:51 PM.
   
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