ELF X2 88mm 2s FPV (1104 7000kv)

By 1921 on Dec 19, 2017

3 23 3

Fun little park flier. If I had to rebuild, I'd probably choose motors that can run 3s; while this can run 3s, it gets real hot unless quite well-tuned (but it is really fast for the minute or so I'm brave enough to fly it on 3s 450mah). Also would probably choose a smaller VTX, upgrade the camera to the Runcam nano, and maybe run a smaller FC with an integrated RX.

55.2g dry, 77.8g all-up with 400mah 2s Tattu packs.

Photos

Part List

Frame	X2 ELF 88mm Micro Brushless FPV Racing Frame Kit RC Drone 3K Carbon Fiber (31 builds) Banggood.com	$7.80
Flight Controller	FLIP 32 - F4 - OMNIBUS NANO V2.5 (w/Blackbox&BARO) (23 builds) Readytoflyquads.com	$24.99
ESCs	10A Colony ESC (20x20) BLHELI_S - (MUILTSHOT) (4 builds) Readytoflyquads.com	$24.99
Motors	4 x DYS BE1104 1104 Brushless Motor 5400KV 6500KV 7000KV 2-3S for 100 120 150 RC Drone FPV Racing Multi Rotor (48 builds) Banggood.com	See Site
FPV Camera	600TVL 1/4 1.8mm CMOS FPV 170 Degree Wide Angle Lens Camera PAL/NTSC 3.7-5V for RC Drone FPV Racing (94 builds) Banggood.com	$7.37
FPV Transmitter	Eachine VTX03 Super Mini 5.8G 72CH 0/25mW/50mw/200mW Switchable FPV Transmitter (417 builds) Banggood.com	$12.22
Receiver	XM PLUS (Mini SBUS Non-telemetry Full Range) (1158 builds) Pirofliprc.com	$12.99
Misc Parts	8 Pair DYS 2030 1.5mm Hole 2 Inch 3 Blade Propeller Triblade Bullnose Prop For 1102 1104 1105 Motor (18 builds) Banggood.com	$3.89
Misc Parts	FuriousFPV High Performance 1935-4 Propellers (Neon Yellow 2CW & 2CCW)SKU: FPV-0105-S Furiousfpv.com	$3.45

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Discussion

sim_tcr Sep 20, 2018

I am trying to buiild my quad with X2 ELF 88mm frame, DYS BE1104 7000kv motors, gemfan 2035 4 blade props.
My AUW is 110g (i am using a 800mah 2s lipo). On light throttle quad shiver and cannot control. Though I did not really fly it, the motors become pretty hot (cannot hold fingures fore more than 1sec)
I removed all props and tried running the motors, two motors vibrate too much.
Any thoughts?

Hypurr Dec 21, 2017

Try using different props with the 3S. Those 5 blade props put a real strain on the motors and you'll probably see a performance increase with less heat using 3 blade or even 2 blade props and 3S will be no problem.

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Hypurr Dec 21, 2017

Cool, let us know whether they helped or not. I was running the Gemfan 2035 4 blade and getting good performance then tried the Gemfan 2540 3 blade and they blew me away. Lasting 3-5 minutes depending on how I push it on 450mah 3S.

1921 Dec 24, 2017

The tri blades really do the trick on this one for 3s; motors don't even get remotely hot and the thing goes real quick. My quad blades were fine too, but the tris definitely stood out.