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HomeAircraftHelicopterGasser Model RC HelicoptersEngines › Zenoah 270 ?
11-11-2014 12:26 PM  4 years agoPost 1
S76GUY

rrApprentice

UpState, NY

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Hey Guys
Just asking the question.
Are the motors like the G270 from Vario and Toxic much different from
Dave's Discount Motors?
Just wondering.
Thanks

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11-11-2014 12:48 PM  4 years agoPost 2
fastflyer20

rrKey Veteran

N. Tonawanda, NY

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A properly modified motor:

Trued Crankshaft
Balanced Flywheel
Lightened & modified piston and sometimes lighted crankshaft for less vibration
Modified port timing for your intended running RPM
Aftermarket insulator block
Aftermarket air filter

Add $45+ on to the cost of stock engines for an aftermarket air filter and insulator, you should consider them a necessity to prevent air leaks and provide proper air flow for the the higher RPM's of a heli engine.

If you are light sport flying (low RPM's) and you happen to get a Zenoah where the OEM tolerance are OK, then a stock engine may satisfy your needs. A stock engine was designed to run at 8000-9000 RPM's, a heli engine is typically running at 12,000-14,000 RPM's.

If you get a Zenoah where the truing/balance is not ideal and/or you desire to have performance, then a modified engine is better. The modifier must be familiar with heli engines, car and boat engines have different requirements.

Tom
CAUTION - my posts are based on my experiences, yours may be different.

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11-11-2014 08:16 PM  4 years agoPost 3
RM3

rrElite Veteran

Killeen, Texas - USA

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The modifier must be familiar with heli engines, car and boat engines have different requirements.
+++ on that!

Its important to remember that a modded engine will always have its pros and its cons. everything gained in one area comes at a cost in another.

showing a preference will only get you into trouble, 90% of everything is crap...

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