Size motors to use with MMP

[Unsullied_Spy]

Originally Posted by asheck

Especially when you can get a reman Novak for 70 bucks. Rotor is an extra 37. But imo it is not an absolute have to have.

$107 for a motor that can push a 1/8th buggy or MT around with good power is pretty good. I doubt the Novak motor will be good for much speed, but it should do 35-45 depending on the weight of what it's being used in.

[J57ltr]

You are not talking about speed runs then right? I run faster than that with a $25 motor.

Jeff

My 4.5 with an 1/8th in shaft did 47 in my E-revo http://www.youtube.com/watch?v=nLY9EGOfwOc This was on SPC 8000's 10c 4s. That was on my bashing gears of 14/68, with the low power Novak ESC. With high power lipos, and the MMP I'll bet low 50's could have been possible. BTW I never had this setup have the motor go above 145.
In a mid-sized vehicle, with a big rotor, I think it would be good for any kind of reasonable speeds you want. I'm planning on gearing for around 55 with the Slash.

[sikeston34m]

Originally Posted by asheck

My 4.5 with an 1/8th in shaft did 47 in my E-revo http://www.youtube.com/watch?v=nLY9EGOfwOc This was on SPC 8000's 10c 4s. That was on my bashing gears of 14/68, with the low power Novak ESC. With high power lipos, and the MMP I'll bet low 50's could have been possible. BTW I never had this setup have the motor go above 145.
In a mid-sized vehicle, with a big rotor, I think it would be good for any kind of reasonable speeds you want. I'm planning on gearing for around 55 with the Slash.

I have just upgraded an old HV4400 motor that was laying around, with the 5mm sintered rotor and matching endbell.

I put this in my E maxx with a MM Pro geared 14/52 using Mod 1 gears. Only being ran in the house so far, it's not completely clear just how well it's gonna do. Low speed driveability is smoother than re-churned butter.

Right now, it's being powered by 4S 4500mah Lifepo4.

The Magnetism of the new rotor is MUCH stronger than the old 1/8" shaft rotor.

I wonder what the new kv is and just how high can I go with the voltage?

Can it handle 5S or 6S if geared properly?

[Pdelcast]

Originally Posted by J57ltr

Ok it wasn't you it was Joe and it was 68mm not 70. I guess I remember seeing the Castle logo and since you were the last one to post I thought it was you.

http://www.rc-monster.com/forum/show...ght=warrantied

I would like to use the MMP unless you recommend against it. I would also like to keep in warranty at least until it is up. I need something smaller than the MMM combo to keep it under the buggy body, there isn't a lot of room under there. Since I don't plan on bashing around with this car (at least with the same setup) so would be recommended for this application?

Jeff

AH! Joe was basically saying "Don't use a motor that is too small for the application!" cause it will fail, and take the ESC with it...

It's fine to use the MMM in a smaller application -- as long as the motor is sized appropriately.

If it is the standard size rotor, it is actually supposed to raise the kv slightly, if it is the 14mm rotor it is supposed to drop the kv substantially . This is assuming that the 4400 is going to respond the same as a 4.5. Which with 1/8 shaft was listed as 4800 kv. Then with the 5mm upgrade they changed it to 5000kv. Now they say with the 14mm rotor you can gear it up because of the lower kv and added torque.

That 4400 rotor was supposed to be horrible, your lucky it didn't blow. Mine was atleast the sintered 1/8th shaft.

If it was the 14mm rotor I wouldn't be scared to throw 5s at it. Novak did this to a stock 4.5 and broke 100mph in a street car, with their esc.

[Pdelcast]

Originally Posted by scarletboa

*cough* neu 1509 and 1512 series *cough*

*cough cough*

[BrianG]

Yeah, some CC/Neu 1509's in kv flavors of 1800, 2200, 2700, and 3500 would be nice! You'd better get on it before we all spend out cash on other motors.

[Unsullied_Spy]

Originally Posted by BrianG

Yeah, some CC/Neu 1509's in kv flavors of 1800, 2200, 2700, and 3500 would be nice! You'd better get on it before we all spend out cash on other motors.

+1, would be a welcome addition to the line of CC Neu motors (which is too small *cough* *cough*)

[Pdelcast]

Originally Posted by BrianG

Yeah, some CC/Neu 1509's in kv flavors of 1800, 2200, 2700, and 3500 would be nice! You'd better get on it before we all spend out cash on other motors.

How about 3500, 2350, and 1750 (1Y, 1.5Y, 2Y)??

The CC/Neu rotors don't do D winds.

[Unsullied_Spy]

Sounds good to me. I'm still waiting for that 1717 to come out

[Pdelcast]

Oh, and BTW,

The 1512(1.5Y) -1800, 1717(1Y) - 1700, 1518 (1Y) - 1800, and 1520(1Y) - 1650 should be available for purchase in a few days.

The "New" CC/Neus.

[BrianG]

Originally Posted by Pdelcast

How about 3500, 2350, and 1750 (1Y, 1.5Y, 2Y)??

The CC/Neu rotors don't do D winds.

Oh, all right. But I really wanted those EXACT kv's! J/K, anything close will do!

[ta_man]

Originally Posted by asheck

If it is the standard size rotor, it is actually supposed to raise the kv slightly, if it is the 14mm rotor it is supposed to drop the kv substantially . This is assuming that the 4400 is going to respond the same as a 4.5. Which with 1/8 shaft was listed as 4800 kv. Then with the 5mm upgrade they changed it to 5000kv. Now they say with the 14mm rotor you can gear it up because of the lower kv and added torque.

That 4400 rotor was supposed to be horrible, your lucky it didn't blow. Mine was atleast the sintered 1/8th shaft.

If it was the 14mm rotor I wouldn't be scared to throw 5s at it. Novak did this to a stock 4.5 and broke 100mph in a street car, with their esc.

The 4.5 on 5S was run for what, one attempt (130 feet?) at a speed run?

The HV4400 is a 6.5 turn motor. From the original bonded rotor to the 12.3 (or so) sintered rotor takes the KV down to 3400. The 14MM rotor is supposed to drop the KV another 20%, taking the 6.5[HV4400] to 2720. That still seems high for 5S. I'd say go with a 7.5HV.

I've been running a 7.5HV on 3S in a CRT.5 (using a Havoc 3s) and it runs plenty fast.

[Unsullied_Spy]

Originally Posted by Pdelcast

Oh, and BTW,

The 1512(1.5Y) -1800, 1717(1Y) - 1700, 1518 (1Y) - 1800, and 1520(1Y) - 1650 should be available for purchase in a few days.

The "New" CC/Neus.

VERY NICE! That 1717 is miine Gonna be a tight week or two, I'm dropping about $200 into my Baja tomorrow but that motor will be mine....