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Patrick
RC-Monster Aluminum
 
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Posts: 862
Join Date: Dec 2006
Location: Perth, Western Australia
06.08.2007, 11:37 PM

Quote:
Originally Posted by suicideneil
Harsh no, just annoyed. I have to agree with you; the Hvmaxx does have a high KV rating (4800 or 4400 models), but then thats the way Novak designed it to be. The trouble here is I think people are trying to compare apples and oranges (I hate that expression but its handy). Example:

An Airel Atom only has a bike engine in the back, yet can do 140mph+ because its light. A Ferrari has a much more powerful car engine under the bonnet, and can do 180mph+

The point here is the smaller bike engine makes its power with high revs, which allows it to propel the Atom to a very respectable speed. The Ferrari however uses a much larger engine with lower revs to make its power & speed the car along. Now think about the HVMaxx & Feigaos/ lehners etc.... You see my point?

Incidently:

Differential Ratio: 2.8461538461538462
Transmission Ratio: 2.769230769230769
Other Ratio: 1
Spur Tooth Count: 66
Pinion Tooth Count: 17
Total Voltage: 14.4
Motor KV: 4400
Tire Diameter (inches): 6.5
Tire Ballooning (inches): 0
Motor Current Draw: 0
Motor coil Ω: 0
Spur/Pinion Ratio: 3.88 : 1
Total Ratio: 30.59937 : 1
Tire Circumference (inches): 20.42 inches (518.68mm)
Total Motor Speed: 63360 RPM
Vehicle Speed: 40.04 MPH (64.32km/h)
Effective Speed Rate: 2.78mph/V (4.47kmh/V)
Effective KV Value: 4400

This is my current setup- I am going to the park tomorrow since the weather is ment to be very good- video will follow.

EDIT: Because ZPB is a car/bike geek, and caught me out....
Sorry for being a pain, but I couldn't help it.
The Ariel Atom has a Honda Civic Type R engine in it and the faster version is supercharged, but yes the Honda engines rev pretty high.
Most Ferrari engines make most of there horsepower and torque at high rpm so I'd say the xl's are a bit more like a big V8 chev or something.
I know what your saying about the HVMaxx compared to xl's and other low kv high torque motors and I kind of agree. But also the e-maxx isn't a light car, you can put a V8 in a big pick up truck, but you wouldn't put the honda civic engine in it. For reliability and fuel economy heavy vehicles usually use big engines with torque rather than small engines with rpm.
Personally I like my 1700kv neu 1515, but I'm not trying to say the novak's aren't that good, because I haven't seen them run. If you get it running so your happy with it then that's what's important.
   
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