Sorry for the late reply, been busy with Christmas preparations..
I checked up on your gearing and found a little information about the EZRun 5.5T.. Although Hobbywing doesn't really give any specs, I did find out that your motor runs at 6000Kv. The same 5.5T Novak runs at 7400Kv, so it is delivering more power per volt compared to the EZRun.. This means that matching your motor will probably be a little undergeared if we match Novak's gearing spec. Undergearing doesn't hurt anything, but its always more fun to try and find the optimal gearing to give you a little more speed around the track without hurting your motor.
In Novaks chart 8.13:1 would mean you are overgeared for offroad racing - since Novak recommends 11.00:1. Basically any gearing ratio 'under' the recommended number pushes you toward the "overgeared" category. You will get more top speed and less torque, but you also run the risk of overheating your motor after a long run. Extreme overgearing of a motor will not only overheat and possibly damage your motor, you will also hit a point where you no longer gain speed and/or you even loose speed [point of diminishing return].
The opposite is true when you undergear.. Lets say your Gear ratio was 12.00:1. You would not likely have any heat problems with your motor, you would gain torque and you would loose potential top speed etc..
Don't panic though! Your gearing might be very close to optimal for your motor.. Since your 5.5T is running at a lower Kv rating compared to the Novak, your optimal gearing might be more like 10.00:1 or 9.00:1
Here is a good way to test it. Dropping down to a 17T pinion would set your gearing to exactly 11.00:1. Use this as a starting point to match the Novak spec and run your car for 5-6min. Take it off the track and check the motor temp with an infrared temp gun etc.. Brushless motor temps should not exceed 160-170 degrees Fahrenheit typically.
Odds are you will be undergeared for your motor - so your car will run without any overheating problems, but your top speed will suffer.. Let the motor cool down completely and gear up your pinion 1 to 2 teeth. A 19T pinion for example will change your gear ratio to 9.84:1. Give your car another run around the track for 5-6min and check the heat on your motor again.. Keep doing this until you find that sweet spot where your car runs nice and fast and your motor is still a little below 160F after the run. This should be the optimal gearing for your motor.
Let me know what results you get.. I am interested in how the EZRun motors compare to the Novak gearing.
If it helps, I was able to find another link for a seller for the the Durga body. It looks like they have some in stock:
http://www.muchhobby.com/shopping/pr...80&language=en
Quote:
Originally Posted by Ignition
Thanks again for the info man ! 
Tonight at 1 o'clock I ordered this stuff by RcMart:
- Tamiya (#53988) Ball Diff Pulley (37T)
-Tamiya (#51287) TRF501X Diff Plate
-Tamiya (#51286) TRF501X Differential Joint
-Tamiya (#54134) Buggy Racing Wing Set (Lowered)
-*Yeah Racing (#YA-0167TC) 540 Motor Heat Sink (TC) (hopefully it will fit  )
-Tamiya (#53912) Led Light (Ø3 OR) (For my TT-01 Drifter  )
And I get the titanium diff balls (from a Schumacher touring car chassis) from a friend of me, he found them
The places where I drive, is the 'Track' at a local RC shop here, it's a little loose dirt track (with 'hard' dirt underneath the 'loose cover').
I just drove 1 time with my durga at there, but next year I wanted to drive more often (ones a month or so).
And the other place I drive is a very big parking lot, where I just do some speedruns and chase TT-01's or M03's of my friends, not really 'racing' just going straight (it's mostly 1 time a month too  )
I just liked the wings, and my wing is cracked and these 2 are cheaper than the 'stock' DB-01 wing 
So why not
After I entered all my settings in the GearChart machine, it says I'm running an 8.13 gearing (91T spur and 23T pinion)
The Novak site says me to run 8,5 (with an on-road car) or 11 (with an 4wd offroad car)
What should I do right now ? 
About the Body, I saw RcModel.HK, they sell them, but they are out of stock, I will mail them, if I have an answer I will place it right here
Again, BIG thanks dude ! |