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12-14-2017, 11:24 PM #91Screaming And Flying!
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sure they have but in a typical v outboard the chest is where I guess its lost as thats not the optimal design when you look at other multi cyl 2 strokes
The Late Dr Blair did lots of study trying to measure the pressure waves in an engine Do you have his books?
One shows a photo of about 50 pressure sensors in a row along the exhaust.
Add that to a high speed datalogger and more pressure sensors in the engine and you get some info on what is happeningLast edited by powerabout; 12-15-2017 at 01:38 AM.
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12-15-2017, 09:28 AM #92
I can't think of anyone with more to gain or money to spend than Mother Mercury herself . The 280 tuner is at the top of the heap and if you follow Dr. Blair's numbers , you will see that from the center cylinders exhaust port sleeve to the transition (adapter plate ) from rectangle to oval is the correct length for a header pipe . And the cone follows taper and length for a proper sized diffuser .
Like I said , Fonzi era mentality , where you are forced to pick the center two holes as a bull's-eye and let the top and bottom be your "fliers" .
I have always been more of a Jennings fan than Blair , only for the simple reason that Jennings is more practical , while Blair is more computational ...
http://www.dragonfly75.com/motorbike/2StrokeDesign.pdf
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12-15-2017, 10:05 AM #93
Thanks for the PDF Chaz.
Theory to Practice...both have their place. You are the lucky one that gets to do both.I CAN ALWAYS MAKE ANOTHER DOLLAR, BUT I CANNOT MAKE ANOTHER DAY
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12-15-2017, 10:13 AM #94Screaming And Flying!
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http://members.iinet.net.au/~pauldaw...s_exhausts.PDF
short little read
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12-15-2017, 11:06 AM #95
I'm gonna go eat breakfast ......... It's something I understand.
Wriggleys gum makes me think of boating, "Double your engines, Double your fun"
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12-15-2017, 11:21 AM #96Screaming And Flying!
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Now I understand why my old Bridgeport ate so much fuel and spit so much out. THE TUNER!
83 V-King, 96 Mariner, 200 hp ff block 2.5 w/a 28p choppa
We gotta clean this liberal mess up, VOTE TRUMP TO MAGA!
Rebuild thread:
http://www.screamandfly.com/showthre...-it&highlight=
http://www.screamandfly.com/showthre...cs.&highlight=
Videos
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12-15-2017, 06:14 PM #97Screaming And Flying!
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FMP liked this post
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12-15-2017, 08:12 PM #98Screaming And Flying!
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12-16-2017, 08:57 AM #99
Actually that fits right in to the subject .... since ya hafta break some egg's to make an omelet ...
AZ sez :
Theory to Practice...both have their place.
The difference between theory and reality ....
A young boy asks his father what the difference is between the two .
The father says I'm glad you asked , follow me and listen .
The man ask's his wife , honey , would you sleep with Brad Pitt for 10 million dollars ?
The wife responds , well honey , we could use the money ... so , yes I would .
Next he asks his daughter the same thing , she quickly answers , Ohh yes , in a heartbeat .
Then he asks his eldest son the same question .. the older boy says , that's a lot of money , yes I would .
The father turn , looks at his youngest and says ... you see son ......
In theory , we are multi millionaires .
In reality , we live with two hoe's a *** ... see the difference ..
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12-16-2017, 09:10 AM #100
Chaz ( my son ) also invented the internet. Not Al Gore
Life Begins At 100 MPH
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12-17-2017, 08:49 AM #101
Good morning dad ....
I'd love to take credit for that , but if family history serves me correctly .........>
It was my Uncle B_ _ who was instrumental in that development ..
Chaz = been ta two company Christmas parties this weekend .
Expensive catering , and not one *^%&% canoli' in sight ....
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12-17-2017, 09:16 AM #102
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12-17-2017, 09:19 AM #103
Now that's the place to be for a party size canoli' ....
Chaz = thinking I'm always @ the airport when my ship comes in ...
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12-17-2017, 09:30 AM #104
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12-17-2017, 10:20 AM #105
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