cheap brushless motor for new emaxx

[nitrorube]

hey guys im looking for a cheap brushless motor for my new emaxx i already have a mamba max esc,feigao maybe?and what kind of pinion for it,thanks

[Arct1k]

I would go for a 9XL and 18-22T 32p pinion on 3/4s ....

[nitrorube]

thats what ive been thinking but will the feigao shaft be long enough for the new emaxx,i know that the novak one is too short,and is the feigao a 5mm thick shaft?thanks for the quick reply,this forum is the best!

[BL_RV0]

it should be long enough, what you can do is look at the feigao specs, find the shaft length by looking at the overall length of the motor then looking at the can length, whatever the difference between can/total is your shaft length, measure the shaft on your titan motor, and if the feigao is long enough, go ahead. ill see if i can find the shaft length for ya.
EDIT: the shaft length is 10mm.

[suicideneil]

32p pinions with a 5mm bore, Mike has them in the store. I would suggest using BrianG's calculator to determine your gearing (aim for 35-40mph, and dont forget the new emaxx tranny has a ratio of 1.82 which you will need to enter manually):

http://www.scriptasylum.com/rc_speed/_top_speed.html

Welcome to the forum.

[Arct1k]

E-maxx tranny 3nd gear is a dropdown with a ratio of 1.72222222

The 9XL and 18-22T 32p pinion on 3/4s with emaxx tranny is what i have in my revo.

rgds

[lincpimp]

The new emaxx tranny has a 33t output gear and a 18t input gear, ratio is 1.83. The feigao with 5mm shaft will be fine, I run an emaxx with a 15l on 5s and it worls fine, there is plently of shaft for the pinion set screw to hold onto.

[Arct1k]

Thanks Pimp - I forgot this was a New EMAXX - Suprised Brian hasn't updated the sight yet ;)

[nitrorube]

excuse my retarded question but when you say 3/4 do you mean 3 cell 4 cell lipo and what king of speed can i expect with a 3 cell,thanks for all the help guys

[suicideneil]

I would have thought 3s was a bit slow, but for some applications you dont need as much speed I guess really.

Differential Ratio: 2.8461538461538462
Transmission Ratio: 1.83
Other Ratio: 1
Spur Tooth Count: 66
Pinion Tooth Count: 22
Total Voltage: 11.1
Motor KV: 2084
Tire Diameter (inches): 5.75
Tire Ballooning (inches): 0
Motor Current Draw: 0
Motor coil Ω: 0.0073
Spur/Pinion Ratio: 3 : 1
Total Ratio: 15.62538 : 1
Tire Circumference (inches): 18.06 inches (458.83mm)
Total Motor Speed: 23132.4 RPM
Vehicle Speed: 25.32 MPH (40.68km/h)
Effective Speed Rate: 2.28mph/V (3.66kmh/V)

22/66 on the pinion/spur with 3s lipo is really slow...

2.8461538461538462
Transmission Ratio: 1.83
Other Ratio: 1
Spur Tooth Count: 66
Pinion Tooth Count: 25
Total Voltage: 14.8
Motor KV: 2084
Tire Diameter (inches): 5.75
Tire Ballooning (inches): 0
Motor Current Draw: 0
Motor coil Ω: 0.0073
Spur/Pinion Ratio: 2.64 : 1
Total Ratio: 13.75034 : 1
Tire Circumference (inches): 18.06 inches (458.83mm)
Total Motor Speed: 30843.2 RPM
Vehicle Speed: 38.37 MPH (61.64km/h)
Effective Speed Rate: 2.59mph/V (4.16kmh/V)
Effective KV Value: 2084

But 25/66 & 4s is alot better.

[Serum]

A 380S is relative cheap, though the speed might be somewhat disappointing..

[notnodak]

I've got a MM esc also and will be usinga Ammo 36-56-2600 with 18t pinion. Motors are about $45-50 shipped most anywhere. The folks over at E-Savage.com recommend this setup and with the 3905 being 4oz more weight I'd say it'll work.
I'll keep you all up to date on mine when I get it up and running. It's on back order at Tower till late January. Probibly won't get it till Febuary.