3w70b2 question  
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All Forums >> Glow Engines, Gas Engines, Fuel & Mfg Support Forums >> Gas Engines >> 3w70b2 question
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3w70b2 question - 6/23/2008 11:48:05 PM   
MetallicaJunkie



Posts: 1048
Joined: 9/17/2006
From: donna, TX, USA
Status: offline 		my brother has the 70 twin in his 33% sd models extra, and would like to know what prop would be the best over all. He's running a 24x10 pt prop and like some experienced recommendations before he purchases any more props. Is there a manufacturer that makes 25x8 props?

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Freestyle Junkie
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RE: 3w70b2 question - 6/24/2008 12:36:08 AM   
Tired Old Man


 

Posts: 11549
Joined: 2/25/2002
From: Central, CA, USA
Status: offline 		Whatever prop I have on the bench at home. That's just the engine I'm looking for.

The 24-10 is about right. Try a Biela in the same size.

< Message edited by Tired Old Man -- 6/24/2008 3:02:10 PM >

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If you can''''t fix it with a hammer, you have an electrical problem.

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RE: 3w70b2 question - 6/24/2008 11:01:58 AM   
rc bugman



Posts: 882
Joined: 1/16/2002
From: Ithaca, NY, USA
Status: offline 		Hi,

I have 2 of those engines, one on a 1/3 gp pitts and the other on a WH ultimate. I run a 24 x 8 on both air frames. A 24 x 10 is a bit too much of a prop for those engines. Being a twin, they don't have the torque of a 70 single but are happier at a higher rpm. Those engines are a sweet running very smooth twin and have the power similar to a 60cc single. I currently have a 3w 24 x 8 wood on both engines.

Hope this helps

Elson

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Using this Hobby for Science (aerobiology)

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RE: 3w70b2 question - 6/24/2008 5:31:10 PM   
MetallicaJunkie



Posts: 1048
Joined: 9/17/2006
From: donna, TX, USA
Status: offline 		thankyou for the post, he's gonna give a 24x8 a try, since it wont hurt

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Freestyle Junkie
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RE: 3w70b2 question - 6/24/2008 6:30:00 PM   
MetallicaJunkie



Posts: 1048
Joined: 9/17/2006
From: donna, TX, USA
Status: offline 		what size drill bit do you use for the drill guide?

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