Muchmore 13.5 timing
 

Hey guys. I purchased a used Fleta v2 13.5 a while back. When I got it I looked at the endbell to see what the timing was set at before I started gearing. It was at 50. I thought that might be a little hot but I put it in my hb418 and started some testing. With manufacturers recommended gearing, It came off at around 120°. So I thought I had a little more in it. I took it out, put it on my analyzer to see whats what and to shim it a bit...it turned out really good numbers. At least what my sky rc analyzer showed..
4,350kv
34,255 rpm
5.3 a
40°
39a 40b 42c

My question is this. The endbell shows 51°. Actual is 40°. I cannot advance the timing on the endbell anymore.
Its not like I really need more. But at a comfortable gearing, Its coming off at 120. Has anyone else had this from Muchmore or any other motor? An 11° variance from endbell marks to actual??

yes to endbell and dyno results being off..120 w no load now what temp with load?

I could run all day and it wont get over 120. Thats why I put it on the analyzer. I had the gear I liked. So I wanted to see what else I could get out of the motor. I knew it was wicked fast. Just wanted to see the max this motor would handle safely. I usually want to be around 140.
The analyzer is accurate. Had 2 other buddies with analyzers. All within the same specs.

Anyone else?

Not uncommon regardless of the brand of motor I have tested over the years, I don't think I've ever tested a single motor where the actual was any closer than 2° to be honest!
I have also noticed that individual phases could drastically change just by shimming alone and not making any manual timing adjustment. I have learned not to trust the end bell which is just a very rough estimate at best.

More heat doesn’t necessarily mean you’re getting more out of the motor. ie. It could be a little faster for the 1st minute or two, but it’ll probably fade in the last two. This could be a bigger risk if you’re using a fan and it fails during a run. Sounds like it’s running really well like it is. I’d be bragging about how much power I’m getting out of a cool running motor.

Im just really shocked that I have an 11 -12° difference from endbell mark and actual..

That is pretty far off, especially since you seem to be mechanically limited to 40* true which is at least 10* less than a typical, current motor.

Right. Yeah maybe 2 or 3° difference Ive had. So, Ive got it set at 41° and it rips. Im happy with it, just strange.
The endbell goes to 50 obviously and theres that extra 2 3 4 degrees over you can go. Ive got it on full lock. So its like 11 or 12° difference. Oh well. Im just gonna run it!!!

I have 3 different brand of motor. The old novak 17.5 is the best one with timing vs the can around 5%. Than the Orion 17.5 in 2and maybe with about12% The tekin 13.5 has like a 20 degree difference. This is using my sky rc also. All 3 of the motor are set for a 6 amp draw and around the 80 db noise level using avid ball bearing in the novak and the other 2 are stuck. For ogt the rpm ranges the teken is a gen 3 spec r which is the newest of the 3.

A good amp draw for my Schuurspeed v4 17.5 is 3.6. Not all motors run @ 6. SMC, Schuurspeed and some Reedy motors amp out way lower. I dont really concern myself with that anymore. I use my analyzer as a base for starting to tune a new motor and/or servicing. I find its a great way, along with proper gearing, to get those very most out of a motor.