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Jahay
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12.05.2010, 02:30 PM

How is that a good setup?

A 1520 1600kv motor with a 17t pinion and 44t spur and stock flux tranny on 6s is only geared for 33mph or so??? That is extremely undergeared, and terrible top speed???

Even with a 20t pinion you are only geared for 39mph... and from my findinigs is that what ever the speed calculator results in, you should take off 10mph for actual speed....

I am geared for 53mph and i hit 43mph actual speed.

When running my 1520 with flux tranny... i ran the 39t high speed idler and ran an 18 t-19t pinion for around a 50-55mph calculated top speed so more like 40-45mph and i ran extremely kl temperatures... When geared for around 40mph my motor temps were very hot and my esc and lipos were extremely cool.
   
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FG101C
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12.07.2010, 01:20 AM

Quote:
Originally Posted by Jahay View Post
How is that a good setup?

A 1520 1600kv motor with a 17t pinion and 44t spur and stock flux tranny on 6s is only geared for 33mph or so??? That is extremely undergeared, and terrible top speed???

Even with a 20t pinion you are only geared for 39mph... and from my findinigs is that what ever the speed calculator results in, you should take off 10mph for actual speed....

I am geared for 53mph and i hit 43mph actual speed.

When running my 1520 with flux tranny... i ran the 39t high speed idler and ran an 18 t-19t pinion for around a 50-55mph calculated top speed so more like 40-45mph and i ran extremely kl temperatures... When geared for around 40mph my motor temps were very hot and my esc and lipos were extremely cool.
Sorry, don't know what to say. Correction though on the pinion/spur. 47/19, and the truck was fast enough, uncontrollable at top speed with the stock tires, and fun enough for me with cool temps all around.

Guess I don't know what I'm talking about though, I'll keep my setups to myself....thank you and goodnight.
   
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BrianG
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12.07.2010, 10:50 AM

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Originally Posted by FG101C View Post
...Guess I don't know what I'm talking about though, I'll keep my setups to myself....thank you and goodnight.
I think your post was fine. The OP asked for suggestions and you offered yours. It's not your fault they didn't like it. A 33mph setup is good if that's what you're after. Obviously, the OP wants much faster speed, but didn't specify.
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Jahay
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12.07.2010, 01:37 PM

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Originally Posted by FG101C View Post
Sorry, don't know what to say. Correction though on the pinion/spur. 47/19, and the truck was fast enough, uncontrollable at top speed with the stock tires, and fun enough for me with cool temps all around.

Guess I don't know what I'm talking about though, I'll keep my setups to myself....thank you and goodnight.
sorry bud, i didnt mean to be rude...

But i just wanted to highlight that such an undergeared setup would cause your motor to over heat. As i mentioned, my motor was reaching high temperatures when i geared my 1520 for 35mph (i wanted to see what the torque would be like) after a few temp recordings... my ESC and lipos were still COLD and the motor was hitting 70degrees... i then put the gearing back to 53mph and my temps remained warm across the 3...

But MY GOD when i had the savage geared for 35mph with the 1520... there was so much torque that i did at one point do a standing DOUBLE backflip after warming my tyres up for max traction!!!! (it was a bit of a fluke, but it still happend!)
   
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rcobscession
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12.07.2010, 08:22 PM

I appreciate everyones post and input. Brian,I did not specify any specific goal other than to post what worked for everyone so i could get an idea of where to start. It is really unecessary to take anything personally on this forum as it is impossible to tell the mood of "text" in a conversation. As far as the servo mount, im not sure if it is the norm but it replaces the big and bulky box really made for the nitro savage and it is alot easier to work on with it mounted this way. I ran my new setup twice and if feels alright but i think 20t/44t is a little much for this motor as torque was lacking a little on 5s(believe it or not)?
   
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