RunRyder - starter motor torque? question for the engineers out there

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Tools and Field Equipment > starter motor torque? question for the engineers out there

dazzaster
Veteran
Location: right next door to hell

how much torque (gf.cm) is required from a starter motor to start a 50 size nitro engine.
thanks
Darren

I May Have Tuourettes Syndrome But I Meant Every Word I Called You

01-21-2008 10:30 AM

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playfair
Key Veteran
Location: Rochester, NY

The Sullivan hi-tork starter I use that works fine at 12v has 210 in-oz of torque (about 15,000 gm-cm). The biggest issue is the initial "breaking" torque to get the stationary engine past it's first compression stroke. Then the torque probably cuts in half.

The sky is our canvas

01-21-2008 01:11 PM

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dazzaster
Veteran
Location: right next door to hell

thanks for that info only there an option to fit a motor that creates 12000 gm-cm torque at 50 rpm with only 6v and i think it may be small enough to fit to a nitro to have it eletric start.

I May Have Tuourettes Syndrome But I Meant Every Word I Called You

01-21-2008 03:06 PM

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airdodger
Key Veteran
Location: Johnston USA

Fifty rpm is too slow.

Chris

01-21-2008 03:08 PM

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Tools and Field Equipment > starter motor torque? question for the engineers out there

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