Plettenberg vs. Neu?

Originally Posted by chilledoutuk

does the plettenberg shadow have 6 poles as well or is that 4 poles?

i have one of these as well and its 4 pole

[zeropointbug]

Originally Posted by Aragon

Something else to consider is gearing limitations. A motor spinning at 60k and geared for 40 MPH will deliver more torque to the wheels than the same motor spinning at 30k and geared for the same 40 MPH.

A 2 pole motor spinning at 30k RPM and geared for X top speed should deliver less torque to your wheels than a 6 pole motor of similar size/weight spinning at the same speed and geared for the same top speed.

Many people here target 30-40k RPM motor speeds because of gearing and top speed practicalities. But it's usually easier to gear high than to gear low, so a low Kv, high pole count motor is preferred IMHO. A high pole count motor naturally spins slower which allows you to get more torque to your wheels because you don't have to gear so low to get the mechanical torque advantage. A 6 pole or more motor should work great. I'm going to be using a Neu 1900 which is 8 poles.

I generally agree with you... but what you said about gearing lower for 2 pole motors to get the torque advantage. Not true, when you have 3 times the torque you 'need' from these motors as it is.

Originally Posted by zeropointbug

Not true, when you have 3 times the torque you 'need' from these motors as it is.

Then you might be able to use a smaller motor and save yourself some weight. :)

[zeropointbug]

Originally Posted by Aragon

Then you might be able to use a smaller motor and save yourself some weight. :)

hey, I never said we don't 'want' all that power!

[Peter Zicha]

Originally Posted by zeropointbug

It must not have the same manufacturing techniques as higher end motors like Neu/Lehner, such as segmented rotor, and the quality of the core material.

Originally Posted by suicideneil

SPECS

I believe the rotor isnt segmented, but it is kevlar wrapped (maybe). Still, much better than a Feigao, but not quite up there with Neus & Lehners.

Plettenbergs quality is second to none and are easily the same quality as Neu's or Lehners if not even a little better , I have all three in a variety of sizes . The pletts are enormously powerful and have huge torque for there size . the big maximum is based on the plett 220 frame, Neu's on the other hand are probably the most efficient out of the three............

[rhylsadar]

hi

yes the quality of the plettenberg is above reproach. we run severeal of those motors here only in very dirty offroad applications. i have one here that is used all-season since autumn 2003 with zero issues. still no play on the bearings or anything. it runs like on the first day. they are designed for offroad applications and need no modifications for that like others do.

bye
rhylsadar

[jordan...]

so i'm still considering either a BM or a 1515/1y. Which would be a better choice if i was to run on 6s??

I know that the BM's max rpm is upto 70,000, whereas the Neu's is only 60,000. Would that play much of a part?

thanks
jordan

[Peter Zicha]

Originally Posted by jordan...

I know that the BM's max rpm is upto 70,000, whereas the Neu's is only 60,000. Would that play much of a part?

thanks
jordan

I doubt many gear trains would take that level of beating for any length of time

[jordan...]

Originally Posted by Peter Zicha

I doubt many gear trains would take that level of beating for any length of time

true, but i think mine would hold up for a bit longer than most

so, any input on the motor situation?

thanks
jordan

[rhylsadar]

the two motors are both like 2200 rpmv.
maybe with 6s you want to go with a lower rpm/v motor ( in the range of 1500 rpmv). btw the missing availability of many different windings is the biggest (and maybe only) drawback of the plettenberg.
but i may be wrong and that NEU and/or the bigmaxx run good on 6s. it seems to me you go in a rather high rpm range. i guess correct gearing would be important.

rhylsadar

[BL_RV0]

Why not just run 4s?

[jordan...]

Originally Posted by BL_RV0

Why not just run 4s?

yeh 4s will be pretty fast, i guess nah, i'm just going for super insane crazy!!

I think i'll go with the pletty, primarily because on the website it says that the motor can handle 6s in a savage. Whereas i'm not to sure if the 1515/1y will be able to handle 6s for long amounts of time without something going wrong.

jordan

[mahazael]

How well do the pletts run on the quark monster pro? Anyone know? How does the BigMaxximum compare to the Neu 1521 series?

[rhylsadar]

primarily because on the website it says that the motor can handle 6s in a savage.

where did you see that statement?

plettenberg runs good on the quark.

rhylsadar

[jordan...]

I guess it doesn't directly 'state' it. But check out the table down the bottom of the page.

http://www.plettenberg-motoren.com/UK/Anwend/car.htm

I'm looking at various 'bigger' brushless motors now, similar to a lehner 2240, but not that exact motor as its WAY to expensive, 300 euros What Neu's are the equivalent of such motors, would it be the 1521 or 1527 series?

Looking at it, probably the best to run on 6s would be the 1521/1y or the 1521/1.5D. I know these motors produce bucketloads of torque, but do they still give good top end speed? On Brian's calculator the 1521/1y on 6s would only hit 37mph, is that accurate?

Enter Front/Rear Differential Gear Ratio: UE 1/8 scale
Enter Transmission Gear Ratio: E-maxx 2nd gear
Enter Spur Gear tooth count: 51
Enter Pinion Gear tooth count: 19
Enter total battery voltage: 22.2
Enter kv rating of brushless motor: Neu 1521/1Y (1577 kv)
Enter tire diameter in inches: 5.8

Adjusted Vehicle Speed: 37 mph (60 km/h)

sorry for all the questions, i'm a newb at these larger motors
jordan