THAT could be the show-stopping issue.

I want to cry

 

The fact is, that unlike the "JIM MOORE theory", wanting something to work does not make it work. Reality is sometimes not friendly.

BUT, fitting enough turns of much thinner wire into an armature slot requires both skill and focused attention. I brought up the topic after doing a transformer winding clearance evaluation to see if a reworked 1100 M.W.O. transformer could hold a 1000 watt battery charger winding. The answer was "probably not".

 

In summary these are useful knowledge I have picked up:

1. "There is no correlation between comm segments and voltage, The more segments, (poles) the smoother the rotation".
My original concept was wrong.

2. "...there are no field coils to drop the voltage for the armature".
Meaning that due to lack of a field coil the armature will carry all the current, which translates to more turns to increase resistance. And that leads to the next problem.

3. "...if that many turns will fit in the existing armature slots."
I made a wild guess of adding 50% more turns based on universal motor winding without considering the absence of field winding.

4. "...while the greater inductance due to the much greater number of turns will tend to limit the current some, and certainly the greater resistance because of the smaller wire size will also tend to limit the current, the actual power dissipated in the motor might be too much for the insulation."
Meaning how to manage the generated heat, an unknown but important factor for the motor's useful lifespan.

Thank you all for the very valuable inputs. The discussion has been very fruitful to me.

 

In summary these are useful knowledge I have picked up:

2. "...there are no field coils to drop the voltage for the armature".
Meaning that due to lack of a field coil the armature will carry all the current, which translates to more turns to increase resistance. And that leads to the next problem.

3. "...if that many turns will fit in the existing armature slots."
I made a wild guess of adding 50% more turns based on universal motor winding without considering the absence of field winding.

Both staements not quite true.
Back EMF controls the current, & Maximum RPM

 

Field coils DO add to the voltage drop, and thus spread part of the heat. All of the current still passes thru the armature, but the voltage drop is spread thru both armature and fields. Likewise the heating.

 

Series field motors act quite differently to a shunt wound field motor, which IIRC is what the automotive radiator motors were, modern ones are PM (shunt) field