brushless and A123 questions

[highflier]

Truck is to stock to race right now. IMHO it is barely bashable. However I hope to be bashable plus a little once I get the Chassis, UE steering, 5s2p pack, new tires and rims. I am planing on proline mulchers 40 series unless sombody talks me out of it. I want some sort of beadless rims.. Advice???

I fly the planes at local schools, I am actually north of Philly by 20 miles. But I did not expect anybody to know where Holland PA, was.

I'll be getting most of the stuff ordered in the next 2 days. I can not make up my mind on the chassis... that is my biggest issue right now :(

I'll post a link soon that showes a little e-combat.

highflier

[Finnster]

Originally Posted by highflier

Truck is to stock to race right now. IMHO it is barely bashable. However I hope to be bashable plus a little once I get the Chassis, UE steering, 5s2p pack, new tires and rims. I am planing on proline mulchers 40 series unless sombody talks me out of it. I want some sort of beadless rims.. Advice???

I fly the planes at local schools, I am actually north of Philly by 20 miles. But I did not expect anybody to know where Holland PA, was.

I'll be getting most of the stuff ordered in the next 2 days. I can not make up my mind on the chassis... that is my biggest issue right now :(

I'll post a link soon that showes a little e-combat.

highflier

Hey, you are just ~5mi from me. I'm just S of Doylestown. I know Doylestown has a big RC airfield @ Turk park, but anywhere would do.

IDK about chassis, left the maxx along time ago. My fav tires are mashers for a good go-everywhere tire, but I hear badlands are also good for that. Mulchers are great for very loose dirt, but too hard of a surface and they will wear quickly.

@ Otello:
So far I am loving it, but amp draw is quite a bit less than I expected, I've only been able to pull 45A out of it. It does ~40mph w/ really strong TQ. The ET data shows quite a bit less power than the 8XL combo (upto 120A), but you don't see it. I chalk that up to the good motor and eff. If anything I cert could have gone with the 1515/3D (1360 kv,) altho the power is great and I can add some cells if I want to go nuts. I'm planning a post when I get everything sorted out.

[othello]

@Finnster
When first using a 1100kv (Fun 600/11) motor with 10s A123 i also didn't see spikes above 40-45A. With HV and the right motor the power is lesser wasted in heat. I also saw 100-200 Watt less on my eagletree with the same feeled amount of power in comparision to my 4s setup. At 1200-1400 Watt with 4s you will need 80-100A. At those Amp levels motor efficiency might be at 80% (at most with a Feigao). This translastes to 240-380watt in wasted heat and 960-1120Watt of usefull power. To reach 960-1120 Watt with 10s A123 you would only need 1050-1250 Watt because your motor still is in the 90% efficiency range (35-45A). So get yourself used that you will see lesser Amp and Watt spikes with the same feeled amount of power than your LV system due to higher overall efficiency ... which also translates to a slightly longer runtime.

Looking forward to your thread.

Sorry for offtopic (thread highjacking).