R/C Tech Forums - View Single Post - 3 racing new F1
Thread: 3 racing new F1
View Single Post
Old 06-11-2012, 01:30 PM
  #2892  
MantisWorx
Tech Champion
iTrader: (28)
 
MantisWorx's Avatar
 
Join Date: Jun 2010
Posts: 5,955
Trader Rating: 28 (97%+)
Default

Originally Posted by MatsNorway
Nothing beats "DD"

In fullsize cars its common to say that there is a 10% loss in FR cars.
20% for 4WD. (no sources but common estimate)

A lot of it is probably down to the bevel gears in the diff.

Usually its a bit worse on full size cars because they sometimes have the input shaft below senter to save space.

Hypoid gear.


All that said i think the main issue is lack of correct gearing for Mantisworxs

The evolution of brushless has been towards lower Kv and higher efficiency. good example is X11 - X12 to the new X20.

Its not the gear ratio man, I have been doing this for a while! and have gone anywhere from 2.4 to 3.2, yes if i go higher it gets out of the turns better but i get my ass handed to me at the end of the straight where the DD cars are running 2.1/2.3 ratios, do the math on how many more RPM's i need to math their speed!!

Originally Posted by nrtv20
That direct drive IRS is too cool!
Here is my DD IRS car, only issue is that i am stuck with a 3.2 FDR which doesnt help me out so the car is just used for MOD now!
http://www.youtube.com/watch?v=HNLt0...9&feature=plcp
MantisWorx is offline