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90 Degree Muffler Adapter
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All Forums >> Glow Engines, Gas Engines, Fuel & Mfg Support Forums >> Engine Manufacturers Direct Support Forum >> Fuji-Imvac Engines Support >> hot fuji 43
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hot fuji 43 - 8/16/2007 10:00:32 PM   
elvir


 

Posts: 157
Joined: 5/3/2006
From: nin, CROATIA (HRVATSKA)
Status: offline 		is there any known problems with installing a modified bission wrap around muffler on the fuji 43ei , like getting to hot and not enughf power to go verticle in a gp cap 232 27% with a power point 20x10 prop only getting about 6600 rpms ? is the muffler to close to the fins for cooling fins ?

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RE: hot fuji 43 - 8/17/2007 4:07:33 PM   
Bax


 

Posts: 12663
Joined: 4/26/2002
From: Champaign, IL, USA
Status: offline 		If the engine's overheating, you do need to consider the cooling airflow through the fins of the cylinder as well as the mass of the muffler. It's very common to not have enough cooling air passing THROUGH the cylinder's fins. You may need to add baffles to make sure the air actually cools the engine.

Large mufflers have their problems, too, because they have a lot of mass that needs to be cooled. You need to make sure the muffler gets cooling, too. If the muffler's too close to the engine, then cooling airflow can be problematic.

_____________________________

Bill Baxter, Manager Hobby Services/Futaba Service/North America
3002 N. Apollo Dr. Ste. 1 Champaign, IL 61822 USA
Service Phone: 217 398-0007
Email: hobbyservices@hobbico.com

(in reply to elvir)
       Post #: 2

RE: hot fuji 43 - 8/17/2007 5:52:00 PM   
elvir


 

Posts: 157
Joined: 5/3/2006
From: nin, CROATIA (HRVATSKA)
Status: offline 		thank for the info , tomorow i am gooing to try the stock muffler with the 20 x 10 prop to see if it a difrence.

(in reply to Bax)
       Post #: 3

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All Forums >> Glow Engines, Gas Engines, Fuel & Mfg Support Forums >> Engine Manufacturers Direct Support Forum >> Fuji-Imvac Engines Support >> hot fuji 43
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