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MVVS 40 power

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Old 01-05-2012, 10:53 PM
  #1
DaveR
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Default MVVS 40 power

What sort of RPM could I expect from a typical MVVS 40 using 0% or 5 % nitro, the 3248 mini pipe and an APC 10x6 prop? I have an upcoming project that I think the MVVS 40 would be suitable for, but I am not sure what power I could expect from it.
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Old 01-06-2012, 05:12 AM
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pe reivers
 
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Default RE: MVVS 40 power

expect about 13,000 rpm. A well tuned header length maybe a bit more.
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Old 01-24-2012, 09:20 AM
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jaka
 
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Default RE: MVVS 40 power

Hi!
If you change the rear ball bearing to a WIB C4 bearing, removed the head shim, Used a Nova Rossi 4 or 4A glow plug, you could expect around 14000-15000 rpm using the MVVS 3248 mini pipe.

The standard MVVS .40 engine turns a 10x6 APC at around 13200-13600 rpm on FAI (80/20) fuel.
Best 10x6 prop is either a RAM or Graupner "Cam-prop", not an APC!
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Old 01-24-2012, 01:03 PM
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Default RE: MVVS 40 power

My suggestions are always a bit pessimistic. Better to err low than to create disappointments.
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