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HomeRC & PowerAircraftHelicopterEngines Plugs Mufflers Fuel › OS91Hz and only 5% nitro.
04-01-2009 06:54 AM  9 years agoPost 1
J Kofoed

rrApprentice

Denmark

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Hello.
Does anybody have good experiences with OS91Hz and only 5% nitro?

Best Regards Jesper Kofoed

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04-01-2009 06:59 PM  9 years agoPost 2
RaptorMan23

rrKey Veteran

Sioux City, IA

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Ive never tried 5%, or for that matter a 90 size engine BUT I only run 10% in my OS 50. Lots of horsepower, runs around 200 degrees, and great fuel mileage Id say try it becuase I bet it works. Just run it with a hot plug like the enya 3. Thats what I do. Youll get ALOT more power with 30% which Im sure people on here will tell you but 30% eats your engine alive. Its not worth it unless your flying competitively in my opnion.

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04-01-2009 08:02 PM  9 years agoPost 3
Kiwi Raptor

rrApprentice

Nelson New Zealand

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I use 10% niteo in my 91HZ runs very smoothly and with good power.
Very tolerant and easy to tune

T Rex 700 T Rex 600 Mini Titan
Kiwi's can fly

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04-02-2009 06:46 AM  9 years agoPost 4
J Kofoed

rrApprentice

Denmark

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Kiwi Raptor.
Are you also using Enya 3 plug?
How is your needle setting at low nitro?

Best Regards Jesper Kofoed

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04-02-2009 08:54 PM  9 years agoPost 5
Kiwi Raptor

rrApprentice

Nelson New Zealand

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Hi I just use an OS8 plug. Low speed needle is about 20degrees rich of standard. High speed is 1 click lean of 1 & 1/2 turns open Middle needle is 3/4 turn open

Hope this helps - by the way I run 17% cool power oil- engine runs just warm
cheers

Ross

T Rex 700 T Rex 600 Mini Titan
Kiwi's can fly

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04-02-2009 08:58 PM  9 years agoPost 6
Danish helifly

rrNovice

Denmark

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Nu skal du ikke være så nærrig Jesper..:-) der skal noget guf i den motor så du kan komme lidt på arbejde..hahaha

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