Kbb 34" mono build

[Roy Van De Sande]

When you have run both motors you could compare them. I have had a lehner 3080/9 in a 45' mono on 12s2p but I didn't like it at all.
I changed back to my old TP5850 600kv. Almost a full kilogram lighter but the TP has also way more torque and stays much cooler than the
lehner. I run all my boats in oval racing, maybe this is a reason why the 800 dollalr lehner didn't performed the way I had expected. People often
think lehner are some kind of wonder motors but they are not. They are just high quality 2 pole motors with all the advantages and disadvantages of
the 2 pole design. In my opinion a 4+ pole motor is the better choice for almost 90% of all people out here. I am very curious to see what the limits are of your 34' mono! Keep us posted!

[Make-a-Wake]

To begin I will run it on 6s but I plan on pushing it up to 8s. I bought both motors with 8mm shafts to take the additional rpm. The lehner is in the 1600kv range. I plan on seeing just how fast I can go with this hull. Everything is purposely being mounted low for a low cg in an effort to help stability.

Forgot you were the high rpm guy

You think the Neu will outperform the Lehner?

[kfxguy]

When you have run both motors you could compare them. I have had a lehner 3080/9 in a 45' mono on 12s2p but I didn't like it at all.
I changed back to my old TP5850 600kv. Almost a full kilogram lighter but the TP has also way more torque and stays much cooler than the
lehner. I run all my boats in oval racing, maybe this is a reason why the 800 dollalr lehner didn't performed the way I had expected. People often
think lehner are some kind of wonder motors but they are not. They are just high quality 2 pole motors with all the advantages and disadvantages of
the 2 pole design. In my opinion a 4+ pole motor is the better choice for almost 90% of all people out here. I am very curious to see what the limits are of your 34' mono! Keep us posted!

I'll definately post videos a gps speeds as I go...

[kfxguy]

Forgot you were the high rpm guy

You think the Neu will outperform the Lehner?

I dunno. I've had plenty of neu motors and I like them but never run a lehner before but I know they are a powerful motor. The 2260 I have weighs a bit more than the 1527 so I'd be very surprised if the 1527 was more powerful. The cool thing about this is I'll be able to swap between the two very easily. I'll definatly have some comparison data but I'm not so sure that it would even be fair as the lehner is a higher kv and kv is rated under a load. I may only need 7s with the lehner to do what I want and 8s on the neu. I guess I'll find out soon. I'll be in the shop tonight working on it along with a cheetah and a Rivercat.

[Make-a-Wake]

I'm guessin that 6s2p for the Lehner and 8s2p for the Neu would be real close, looking forward to your data, that will be very interesting!

[kfxguy]

I'm guessin that 6s2p for the Lehner and 8s2p for the Neu would be real close, looking forward to your data, that will be very interesting!

Your probably right. The neu is really for a sport setup when I yank the lehner. I do plan on 8s with the lehner in my shocker tho!


On a side note....I will be doing some data logs on it so I'll be able to compare that too.

[Local Boy]

Very nice Brutha!

I always enjoy following your builds...Very nice work...

Thanks for sharing...

Aloha

[Stevesc]

I dunno. I've had plenty of neu motors and I like them but never run a lehner before but I know they are a powerful motor. The 2260 I have weighs a bit more than the 1527 so I'd be very surprised if the 1527 was more powerful. The cool thing about this is I'll be able to swap between the two very easily. I'll definatly have some comparison data but I'm not so sure that it would even be fair as the lehner is a higher kv and kv is rated under a load. I may only need 7s with the lehner to do what I want and 8s on the neu. I guess I'll find out soon. I'll be in the shop tonight working on it along with a cheetah and a Rivercat.

Don't forget to include the Daytona.

[Make-a-Wake]

Is this hull just under the limit for P mono if you chose to race it sometime?

[kfxguy]

Don't forget to include the Daytona.

Well I don't have a lake in my shop (wouldn't that be awesome lol) so there's not much to do to the Daytona except s/b some props (which I ordered two more that just shipped today). Lol

[kfxguy]

Is this hull just under the limit for P mono if you chose to race it sometime?

I'm not sure but in my last thread it was mentioned that it was legal for p mono.

[Fella1340]

looking good travis,looks like you wont be short of power with either motor! Builds looking nice so far, I hope the hull performs well at high speed for you, I'm guessing it should be good to go given where it came from. Nice to see something different coming out of the kfx build shed. Does this make it 5 different builds in progress now?

[kfxguy]

looking good travis,looks like you wont be short of power with either motor! Builds looking nice so far, I hope the hull performs well at high speed for you, I'm guessing it should be good to go given where it came from. Nice to see something different coming out of the kfx build shed. Does this make it 5 different builds in progress now?

I think so, cheetah, 2 rivercats, mono and a few more that I haven't started yet

[keithbradley]

When you have run both motors you could compare them. I have had a lehner 3080/9 in a 45' mono on 12s2p but I didn't like it at all.
I changed back to my old TP5850 600kv. Almost a full kilogram lighter but the TP has also way more torque and stays much cooler than the
lehner. I run all my boats in oval racing, maybe this is a reason why the 800 dollalr lehner didn't performed the way I had expected. People often
think lehner are some kind of wonder motors but they are not. They are just high quality 2 pole motors with all the advantages and disadvantages of
the 2 pole design. In my opinion a 4+ pole motor is the better choice for almost 90% of all people out here. I am very curious to see what the limits are of your 34' mono! Keep us posted!

Roy, have you ran any other Lehner motors? 3080/9 on 12s lipo is a 25k RPM setup...not exactly playing to the strength of the 2 pole LMT design. I can see with your setup why you would prefer the 4 pole motor, but you might change your mind if you were using motors at higher RPM. I'm sure you weren't impressed by the 3080/9 on 12s, but I can say from experience that a 3080/7 on 14s is in a completely different world.

Some data from Lehner:

The power increase is proportional to the rpm. Make sure there is good cooling.
Operating voltage x 2 = rpm x 2 = double power

Max power of the series 30xx motors:
3040 50000 rpm ca. 12 kW (at ŋ / Pmax)
3060 50000 rpm ca. 17 kW (at ŋ / Pmax)
3080 50000 rpm ca. 30 kW (at ŋ / Pmax)

OP: Great looking build so far!

[Spartanator]

I like!