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MVVS .15 w/10%

Old 10-02-2006, 04:34 PM
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lrtx1
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Default MVVS .15 w/10%

Hello,

I am considering the MVVS .15 glow. I have several other brands but no MVVS. My dilema is that I use 10% in a Saito and not sure if it will perform well on anything less. I believe that the MVVS is said to use 5% or less. I don't want to carry 2 fuel jugs. Hopefully there is an easy solution. Any help would be appreciated.

Layne
Old 10-02-2006, 09:45 PM
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Default RE: MVVS .15 w/10%

Layne,


This small MVVS can be run without a hitch on 10% nitro.

You must, however, keep the oil at 20%, at least half of which must be castor, but the nitro can be safely bumped to 10%.


If you want to run up to 20%, an extra head shim must be added.
Old 10-03-2006, 04:06 AM
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Default RE: MVVS .15 w/10%

Thanks for the advice. Also, would that engine be suited for a 2.5 to 3.0 pound plane. Or would the .21 be a better match. Does the same oil & nitro rules follow for the .21


Layne
Old 10-03-2006, 06:54 AM
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Default RE: MVVS .15 w/10%

Layne,


These rules will work for the .21, but I would not easily recommend 10% nitro for the .25 and for the .28, which are its same physical size and cost only a few bucks more. A 3 lb. plane will have border-line power on the .15, which must spin a pretty small prop to achieve its good power, near 19,000 RPM.

The .21-.28 can be propped to 13-16,000 and will all power a 3 lb. plane with much more authority.

The larger engines have one more advantage and it is MVVS' #3216 two-needle carburettor, which is extremely linear and is one of the best carburettors around.
The .15 uses the #3213 air-bleed carburettor, which is good, but does not quite have the two-needle carburettor's linearity.
Old 10-03-2006, 05:48 PM
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Default RE: MVVS .15 w/10%

Thank you for your advice and knowledge in making this decision easier for me.

Layne

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