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Lizard · 01.20.2014, 06:46 AM

Yes, others have done it before.
There is a guy on Traxxas Forums with a twin 1717 XO-1 with MGM Compro ESCs on 8S that is claiming to have reached over 150mph.
There is also a guy on Savage Central forums with a twin Castle 1515 + Mamba Monster ESCs Savage who reached over 90mph with it, so I'm pretty convinced that it will work for me also.

To make sure everything runs nice and in sync, I have exactly the same motor+ESC combo (from XO-1) that will be connected to the receiver via a Y-cable. Settings on each ESC will be exactly the same and batteries plus nine 470uF extra capacitors will be connected in parallel, so that both ESCs draw power from the same capacitors and battery. Cables will be kept as short as possible.

To prevent one ESC from shutting off before the other (maybe due to small measurement differences) I plan to set low voltage cut-off to something around 3.3V or 3.4V on the ESCs and use another external LiPo buzzer set to 3.5V or something.

For extra cooling I plan on removing the ESC plastic housing and putting bigger 30x30x15 (stock is 30x30x7) fans on them that are always-on.

Internal BECs will be disabled and fans on the ESCs will be powered by an external BEC so the ESCs do not need to cope with things other than powering the motors.

	(#8)
Lizard RC-Monster Carbon Fiber Offline Posts: 197 Join Date: Jul 2013 Location: Germany	01.20.2014, 06:46 AM Yes, others have done it before. There is a guy on Traxxas Forums with a twin 1717 XO-1 with MGM Compro ESCs on 8S that is claiming to have reached over 150mph. There is also a guy on Savage Central forums with a twin Castle 1515 + Mamba Monster ESCs Savage who reached over 90mph with it, so I'm pretty convinced that it will work for me also. To make sure everything runs nice and in sync, I have exactly the same motor+ESC combo (from XO-1) that will be connected to the receiver via a Y-cable. Settings on each ESC will be exactly the same and batteries plus nine 470uF extra capacitors will be connected in parallel, so that both ESCs draw power from the same capacitors and battery. Cables will be kept as short as possible. To prevent one ESC from shutting off before the other (maybe due to small measurement differences) I plan to set low voltage cut-off to something around 3.3V or 3.4V on the ESCs and use another external LiPo buzzer set to 3.5V or something. For extra cooling I plan on removing the ESC plastic housing and putting bigger 30x30x15 (stock is 30x30x7) fans on them that are always-on. Internal BECs will be disabled and fans on the ESCs will be powered by an external BEC so the ESCs do not need to cope with things other than powering the motors.