Motor rpm

[jedzuki(2)]

I have an old Tamiya guide book that says:

540s motor: 11000rpm

380s motor: 12800rpm

These seem low, are they true for current spec Mabuchi motors?

Are there any websites that give motor specs?

Many thanks.

[DJTheo]

No, modern stock 540s make 15000-17000 with no load, even for the old 11000 seems to low (more like 13000), maybe under load or with only 6V?

Cheers

[one-point-nine]

try here

http://home19.inet.tele.dk/martinjordt/res...tors/motors.htm

[jozza]

Depending on the age of the guidebook, it's likely they are talking about 6V running. In the 80's, the 7.2V pack was unusual, and only available in the hump-back version as a hopup for certain cars which could take it. Cars of the era of the XR311 etc were designed to run on 6V packs.