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HelicopterAntiques or Out of Business › Engine Choice
02-21-2014 10:34 PM  3 years agoPost 1
mpafonseca

rrApprentice

Savannah, GA - USA

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Hello everybody,

I'm rebuilding an old Hirobo Eagle and I was wondering which engine choice would be better. I have a OS61SX-H with performance specialties piston and liner or a stock OS70SZ-H. I know that the 70 will not match the heli age but I would like to know which choice would be smoother and maybe more powerful.

Thank you for your ideas....

Marco

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02-21-2014 11:57 PM  3 years agoPost 2
chickens2252

rrApprentice

Okinawa

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I used to have a Quick heli with the 70 and I don't remember it being very "smooth". Might have been the pipe(some sort of muscle pipe). The power was good but I never had a 61 in it for comparison.

Hope that helps

Tighten it tell it loosens then back it off a quarter

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02-22-2014 12:33 AM  3 years agoPost 3
balsabasher

rrVeteran

Central Ohio, USA

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The 61 is good for sport flying but the 70 will give a little more power. I went 70.

Blades; what goes around, comes around!

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