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HomeAircraftHelicopterTools and Field Equipment › HPI Rotostart 2 for .50 engines
06-02-2009 08:59 PM  9 years agoPost 1
obbi13

rrNovice

Carolina, PR - USA

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Guys/Gals,

I was wondering if the HPI Rotostart 2 has enough torque power to start for example an OS50, TT53RL, etc.

Since I have one for my HPI Savage I thought why not, but before doing anything I would like to see if any of you tried this before and to what extent?

I know that the shaft is not the correct one, but I can change that easily. Not sure about the power or safety though.

-=-=-= Look Ma... No hands! =-=-=-

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06-03-2009 02:24 PM  9 years agoPost 2
obbi13

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Carolina, PR - USA

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Guys? Anyone?

-=-=-= Look Ma... No hands! =-=-=-

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06-03-2009 03:50 PM  9 years agoPost 3
RCHSF

rrKey Veteran

NC

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I'm not into RC cars anymore, but I looked the spec's on the starter, and it looks like it will only start upto a .18cc engine. so I doubt it would start a .50cc engine.

It would have a least double te compression, vs a .18

but with more power, it may, also you might upgrade the motor in it, and add more power, if it has steel gears, I'm sure you could make it start a .50cc engine.

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06-03-2009 06:30 PM  9 years agoPost 4
obbi13

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Carolina, PR - USA

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Thanks for the reply RCFlyer I'll discard it then. I guess it's time to dust out my wireless Dewalt drill.

-=-=-= Look Ma... No hands! =-=-=-

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06-03-2009 09:59 PM  9 years agoPost 5
deiniolpook

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West Wales, UK

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That starter has a safety over-current breaker if I recall.

You could always give it a try, it may have a smaller motor than most ordinary aero-style starters but it has quite a large reduction to increase the torque.
I bet it could wind up a 50 size engine.

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