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Post by dwayne on May 16, 2005 6:01:53 GMT -7
Could someone please tell me what size venturi ID I should be using on my LA .40, right now I'm using .281 is this to big?
Thanks
Dwayne
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Post by tperry2054 on May 17, 2005 10:05:36 GMT -7
It may depend on what the diameter of the spraybar is. There have been many discussions on SSF an this topic and charts have been made for this info. Try a search on SSF and see if it helps you. www.clstunt.com/cgi-bin/dcforum/dcboard.cgiTight lines, Tom Perry |
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Post by Garf on May 17, 2005 10:53:11 GMT -7
Power level is regulated by venturi size also. I just had an airplane with a ST 46 try to pull my arm off. The venturi was too large. If you have a smaller plane, reduce the venturi size to reduce power level.
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Post by DennisV on May 30, 2005 14:12:47 GMT -7
Dwayne, I fly a Brodak Pathfinder in Advanced Stunt. It is powered by a stock OS LA .40. It is a converted RC engine using a stock OS front needle valve and a stock OS venturi from the OS .20/.25 FP (ID of .260"). The engine is fitted with a SSW tongue muffler. The engine runs in a consistent wet 2 cycle the whole pattern. Click this link for a picture of the engine setup. www.clstunt.com/htdocs/dcforum/User_files/429b2e9d48a7d3ef.jpgHope this helps. DennisV |
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