It is a little disheartening to see them all disassembled for who knows what reason(s). Do these motors need alterations to be as you have stated "great" or are you just showing off?

Semper Fi. 1st MAW, MAG13, VMFA-314 66-68

Rah! Just little cleaning and oiling the bearings , then just setting the proper timing

Speaking of oiling the bearings, I should probably do that for my SP 7.5t. It's been used sporadically for a bit over 2,5 years prior to this summer, and more heavily this summer. Dusty clay mostly after the first 6 months, so a good cleaning and oiling would certainly be helpful in prolonging the bearing's lifespan. What sort of oil should it be? I have some oil sprays (silicone oil and gun oil for example), but I've heard there's dedicate bearing oils as well?

It's funny how we are all trying to tune 21.5's. A bit of a departure from the norm for me, gonna race some oval this winter.

I was told to shoot for 3.5-4 amps and I would be in the ballpark for 1s. I went with the stock rotor and the +30 board for the best #'s.

48* got me 2691kv, 21799rpm and 3.9amps. I was amazed to see just going up 2* would shoot the amp draw up to 8amps.

Marcos, please post your findings with the 17.5MMM. I have one I would like to use in TC.

my 17.5MMM is set at 50degrees its has 3650kv, 29,200 rpm and its draw is 6.9 amps, i dont go by the amps different motors draw different , my mmm comes off the track about 145 degrees , and has no fade at the end on the run.

I thought the same as you, that they were all disassembled. But after looking closer, of the five motors, only one is disassembled.

I had an old experienced AC motor rebuilder (pool, AC, cooler motors) tell me years ago that the best bearing oil is 3 in 1 oil. I've been using it ever since.

[QUOTE=Marcos.J;15030851]my 17.5MMM is set at 50degrees its has 3650kv, 29,200 rpm and its draw is 6.9 amps, i dont go by the amps different motors draw different , my mmm comes off the track about 145 degrees , and has no fade at the end on the run.

#Beast

Like this?

If so, looks like I'll have to order it from eBay or some such since it's apparently not sold in Finland as far as my quick googling can tell - but that's not a big deal, so thanks for the tip, gotta order some in the near future!

A lot for racers use Bachmann train lube

i have a 21.5t MMM with the red timing board cranked up all the way and the temps are good. is there a different color timing board that will allow for more timing? if so where can i order it? (i think i need the yellow one, but can't find it anywhere online.)

you can always gear up

no, we have a fixed gearing rule.

Allowing timing but not gearing seems somehow... odd. I guess because usually it's the other way around.

Yes, that's the stuff. I used this one...

https://www.amazon.com/3-ONE-100706-...s=3-in-one+oil