Motor Timing

[roadrage]

I have a Peak Performance Aurora motor. I messed with the timing and still know the original timing. I haven't drove my car lately but if my timing is too hot, is it possible it will overheat my esc? And can someone explane timing to me a little more? This is my first motor I can tune and don't know much about it. :D

[Oyster]

roadrage, yes, you can overheat an ESC. Most will just shutdown before any damage is done. Timing is the relation of the brushes to the magnets. Usually, the more timing, the more R's you'll see. But, less power down low. Less timing will yield more low end power and less top end R's. It's give and take. (Isn't everything?) Timing is fun to play with, but if you have the means and want more R's, just up the freq of the speed control. It'll do kinda the same thing.

Also remember... the more timing, the more wear on the brushes and comm. It all depends what you want to do. Have fun and try things out.

Things to avoid. Don't exceed 30 degrees. Don't retard the timing. I'd try a pack at 10 degrees, a pack at 20, and a pack at 30 to see which you like most. Check motor heat every few mins. And... good luck!

- jon

[jeepinator]

To add to Oyster's grreat explanation:
The lower the turns, the less you should be changing the timing. For example I would not recommend advancing the timing on an 8 turn motor to 30 degrees. The result would probably be fire ! :p
30 degrees is getting pretty crazy for any motor. I know there are a few "outlaw" stock motors with more than 30 .. what is it 36 degrees or something ? And I think Trinity used to have a "Monster Horsepower" motor that was at 45 or something mad like that. Those motors basically self destructed.

[roadrage]

Well I dont know how much degress I turned it. I would say 2 CM. Are you serius about the fire? My motor will catch fire? Because I changed the timing about 2 CM and the motor doesnt get hot at all. Just the ESC gets hot but not hot enough to shut down. Whats a good high frequency ESC I can get for 50 bucks? I was looking into the streak but thats only 4500Hz I think. :confused:
By the way, THANKS FOR THE HELP!! :D

[roadrage]

Can anyone please answer my question above?

[outsider]

Novak fusion or Futaba mc330 are both good high performers. They are slightly over $50 though but you might find a good deal. Otherwise go for the Novak ExplorerII or Futaba mc230, both at under $50.

[roadrage]

I have futaba mc330.. crap! Only 1500 frequency. I was thinking the duratrax blast or the explorer II... By the way, I dont know how much timing I changed on my motor but there are little markings near to top of the can and I turned it 3 markings. Does anyone have a motor with these markings? and whats each marking mean? I have a 14x3 motor for those who were asking.

[roadrage]

Anyone help me with the post i have right above this one? I don't want my car to catch fire. :(

[roadrage]

:(

[Railman]

Roadrage, The amount of timing has everything to do with the number of turns & the wind. You will get a quicker response if you let us know what it is.

[Railman]

Roadrage, I don't have an Aurora & don't mess with mods that much. However the timing on a 19 turn Chamelion is 24' & If I remember right 12 turns are around 12 degs or so. My best guess would be in the range of 15'+- on yours. I don't remember what increments the marks are in but it's fairly easy to figure it out. If you take the diameter 30 mm (guess)& multiply x 3.14 you get a cicumferance of 94.4 mm. If you divide that by 360 you get .26mm per deg. Then if you want 15' you would multiply .26 x 15 =3.9mm.
This should get you close enough to be safe, but as I said before I don't have that motor.
I vaguely remember that mod timing marks are around 2 1/2 deg each. Does that check out to the math above?

[Nairb]

The markings on the endbell usually mark 12 degrees between each pair. Look at your stock motors and you'll see that their timing is set at the second mark away from zero, which is 24 degrees. I usually keep my mods set at a conservative 12 degrees. I suggest you keep timing relatively low like I do, until you can test the effects on a dyno.

[HauntedMyst]

Most timing only goes to 10, but I have my motors built to go to 11, you know, so their louder...

[Nairb]

The marking I'm talking about are the lines in the endbell's plastic. Usually there are only 4 of them. If you're looking at markings on the motor can's sticker, then I think they're 2.5 degrees like Railman said.

[mmmoy782]

how many degrees are the notches in the speed gem series?

[roadrage]

left, right im confused. is there a diagram that i can see which way to turn my motor? if i turn the endbell counter clockwise, the lines move right (or oposite) very confusing

[Railman]

Your motor turns counter clockwise on the can end, & clockwise on the end bell end. To advance timing look at the endbell end, start at zero degs & rotate end bell counter clockwise to desired degrees. Go with the 12' that Nairb sugested.

[ 08-14-2001: Message edited by: Railman ]

[Gutter Ball]

I've never seen an electric motor catch fire...however, I have seen some smoking ones!! People racing the stock oval do not use proper gearing(I keep forgetting which way it goes, over geared = faster right?) I'm sure if they sprayed some motor cleaner in there right after the race, it would have caught fire!!

[Nairb]

here's one more piece of useful info. Zero degrees is the line right where the screws are in the endbell. Usually, there are only marks in the positive direction of timing. That would mean the mark furthest to the right on the endbell would be zero degrees, and right below the screws. Count 12 degrees for each line and you'd get to 36 degrees at the 4th (usually furthest) mark, when you count zero as one of those marks. I hope this helps.

[jeepinator]

One more something to add ...

Advancing the timing means to rotate the endbell in the OPPOSITE direction you want the armature to rotate.
I say this because some people actually have a need for a motor to rotate differently than normal. My Traxxas Villain IV boat is an example of this.

[roadrage]

THANKS FOR THE HELP!!! :D :D I'll check this out once I find the alen wrench to take out the pinion so I can remove the motor and look at it.

[roadrage]

whats a good drag racing esc? i heard atom is the highest frequency higher than c2

[Grizzbob]

No, all of the current high-frequency Novak programmable ESC's(that is, the Atom, Cyclone, CycloneTC, C2 & TC2) allow you to adjust the drive & brake frequencies, & they all have the same limits(maximum of 23,400 Hz). The only thing separating them is in their profiles, i.e. exactly which drive & brake frequencies they're set for in each profile, & all of them have a fourth profile that(when using the Profile Software or a Pit Wizard) lets you choose whichever frequencies you feel like. Also, the one extra thing that differentiates the Atom from the others is that it has fewer FETs, which limits its rated current & On resistance a bit..... :)