Would changing the centre diff fluid help much? See most people that run Brushless 8ights run 7000 or 10000 in the centre diff.
My track is pretty dusty (fine dirt) and don't really want to remove the front motor cover but might have to. Was looking at putting fly screen in front of the motor. Anyone tried this before?

Well I tried gearing down. Went down to a 13T and temps did drop. ESC was running at 105F, Bat 96F and ESC was around 155F - 165F and that was after 15 minutes of racing around the track. Couldn't test no more as battery was starting to run slow. It was the same battery I have been using all day. I found myself using WOT alot more with the 13T over the 14T & 15T but it temps stay around there I wouldn't mind. I only have a 13, 14 & 15T pinion so can't really test out other sizes but don't see why I would need to anyway. Charge battery up tonight and go out tomorrow and see if temps stay down. It is also late afternoon here so temps aren't as high as what they were earlier in the day

Normally you can see if they are putting all the power to the front wheels fairly easily. How are the front tires doing. If it is chewing up the front tires definitely up the diff fluid weight. I just bought my first 1/8th buggy and I can't wait to get it converted. Driving it as nitro was good fun when it worked.

(For what it worth DB)
I use 30,000 weight in my center diffs, I also know that MetalMan and others do as well with great results..

Yeah, the front tyres balloon when i give it some throttle.

>Would changing the centre diff fluid help much? See most people that run Brushless 8ights run 7000 or 10000 in the centre diff.

Increasing the diff fluid wheight will decrease unloading to the front tires which act like a big slipper. Thus traction normally will increase which results in an increase in amps too (as more power can be transfered to the ground). Higher Amp peaks will result in a hotter motor.

Very loose centerdiff = less amps, cooler motor

Those were my findings using an eagletree datalogger and comparing a center diff filled with grease, 10000 and 30000 silicone oil.

What about using fly screen against the motor & a piece of airfilter foam between screen & the motor mount.

Tekno are making Neu motors that are sealed, how is this affecting the heat dissipation?

I am thinking a screen that is small enough to keep out dust would get clooged up pretty quick, I would think that a small piece of foam material and some oil like they use for a K&N filter for a 1/1 size car

I started running my Neu's open. I used to just put some electrical tape on the front and used Mike's rear end cover. I find running it open helps temps a bit and I haven't had any problems with dust and rocks. I know others that do the same. I just blow it out with air after a few runs.

You will be hard pressed to keep your motor temps below 150 if you are racing. 150-175 is typical and nothing to worry about for track duty. I rarely ever get above 125 bashing though.

Ill experiment more when I get the diff fluids. I was looking at maybe using a Outerwear filter over the motor
http://www.amainhobbies.com/product_...ducts_id/16582
http://images.amainhobbies.com/image...20-2270-01.jpg