theatriks

iTrader: (8)

How does a rotor warp ???

Jerz616

iTrader: (49)

Sometimes if the rotor gets really hot the magnets can start to break down and separate. Maybe yours was in the pre stages of this.

locked

iTrader: (1)

Uri Geller bent it with his mind.

No idea man. Maybe a hard hit from the side, if you had the motor longitudinal in your A700 and the hit was hard enough to move the motor and smash the pinion into the spur. Or some solid debris going through your gears??

MUDVAYNE

iTrader: (88)

I run the Team CRC WGT Lipo Edition. I could literally see guys catching me at the end of the straight. It was pretty obvious lol. When I went up in gearing it helped, but they could still catch me. My car is pretty good in the infeild, just has no speed. I'll try the timing in two weeks when I go back. Thanks for the help.

Ken

Josh-n-ya

iTrader: (95)

If you didnt have your timming all the way up they will catch you and pass you. In WGT you are going to be pretty safe at turning the timming up without the motor getting to 160 degrees! 88 spur and 40ish pinion and timming up! Do it.........

Josh-n-ya

iTrader: (95)

told you!

theatriks

iTrader: (8)

Yes it was good advice.....at a slow roll you can see it rolls like one side is heavier then the other but when you roll it fast you can hardly tell....im still confused as to why this happened...this motor never got hotter then 120F

marcomarino35

I want more stright speed...

keddy

How come I can't change the timing pas...... Joking.

So I'm running 21.5 VTA, all the other guys are using motors in the 1800-2000kv range with an FDR of 3.8-4.0. I tried running this range with 10* timing and all I got was a motor with no punch and a lot of heat. I worked out the math and to get the same axle RPM as those guys with the higher KV d3.5, it seems I have to run something like a 5.3 FDR. Does this sound right?

Track is 60x60 and i'm running a Tekin RS on 2 cell high C rating if it makes any difference

bkspeedo

iTrader: (5)

Kv doesn't mean much, some motors are designed for high rpm\lower torque and some are high torque\low rpm. Gearing all comes down to testing for your track size and layout.

For a track that size with this motor i would think a 4.2fdr with the timing turned up all the way (25-30 on the endbell) would be good. You will need a fan blowing on the motor or i could see it hitting high 100's after an 8min race.

If the motor is temping 190+ after 8 mins with a fan than your car is not efficient in the turns and your scrubbing way to much speed or your pushing the car to hard into the turns scrubbing speed.

Ex. I let someone drive my 17.5 TC in a race that was very efficient in the turns. Based on there driving style after a 5min run the motor came off at 180deg and was way slower then when i drive the car. That same night i drove the car in the other 2 races and the motor temp was 140deg each time, my race times where 2 laps better with TQ and win in the main. He was pushing the car to hard into the turns blowing most of them each lap causing the motor to work harder when the throttle was reapplied.

keddy

I will be the first to say I'm not efficient in the corners. This is my first ever try at onroad. I come from an offroad background.


When I was trying to run a 4.0 FDR I was coming up 4 laps short of the guys who have been doing this their whole hobby career. But was coming off at 180° with a fan. I've since dropped down to a 5.15 FDR and only came up 3 laps short but also only came off at 110°

It's really hard to get testing in because they strike the track as soon as we're done.

Thanks for the info, looks like I've got some testing and practicing to do!

Jerz616

iTrader: (49)

What kind of settings do you gave in your ESC? Do you use drag brake? When I first started I ran drag brake and would come off hot. I stopped running drag and my temps dropped a bunch, and my times improved. In VTA we need to carry more speed then the TC's due to slower motors. Our track is bigger then yours and most of us run around the 4.0. I run 4.04. But I am running a Novak not the d3.5.

keddy

Esc setting are normal. No drag brake. We also run blinky.

The guys running the novaks can get away with a 3.8 FDR on our track. The track is different layout each week. But it's always technical.

I'm going to just keep moving up on teeth until I find a good spot.

LonnyJ1950

Ok 1/12TH 13.5 blinky, 35x100 track, 11.9 lap times. Regular D3.5 or Magzilla? What do you think?

Josh-n-ya

iTrader: (95)

Either or will get the job done!