72x36 wide blade 0520 carb

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snow bullet
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72x36 wide blade 0520 carb

Postby snow bullet » Sun Jan 14, 2018 9:21 am

i have a 36x72 wide blade sensenich wood blade on a 0520 carb and i think i might be down on power . i thought it would spin that prop ovet 3000 rpm but it only hits 2750, dose that seem right to u guys or am i down on power

swamper2
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Re: 72x36 wide blade 0520 carb

Postby swamper2 » Sun Jan 14, 2018 6:35 pm

If you have good compression than try a 72x34 or go to a pitchible prop . which is the way
16ft alumitech/406sbc/2.38w/3-80in.R's

snow bullet
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Re: 72x36 wide blade 0520 carb

Postby snow bullet » Mon Jan 15, 2018 7:21 am

i do have a couple more props that i can try, i was just checking to see how much prop other people can run with a similar motor.
my motor was and io520 aircraft fuel injection motor that i converted to carb
with a ma4-5 4404 carb off of a 0540 and
it just seens low on power .

terrible ted
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Re: 72x36 wide blade 0520 carb

Postby terrible ted » Mon Jan 15, 2018 12:56 pm

Thats the right rpm for that motor. Now a carbon prop is lighter and adjustible and my perform better. Dont know if thats the right carb or not?

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Waggs
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Re: 72x36 wide blade 0520 carb

Postby Waggs » Mon Jan 15, 2018 11:05 pm

Perfect RPM
12.5' Predator, O320H2AD, 72" Whisper Tip Narrow

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Packman
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Re: 72x36 wide blade 0520 carb

Postby Packman » Wed Jan 17, 2018 12:36 pm

Correct Rpm for wood

GMAC 76
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Re: 72x36 wide blade 0520 carb

Postby GMAC 76 » Thu Jan 18, 2018 11:08 am

A 72X36 WIDE blade is a lot of prop..size and especially weight wise for the aircraft engine especially on the spool up imo


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