W9 Configuration engine - Fuelly Forums

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Old 01-16-2007, 01:34 PM   #1
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W9 Configuration engine

Insane, but incredible! AND it runs on E85

http://www.atomracing.se/6M.html
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Old 01-16-2007, 05:49 PM   #2
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thats pretty sweet! i wonder what the power would be with c16...
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Old 01-17-2007, 12:36 PM   #3
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Ummmm.. why?
A three cylinder (or multiples thereof) four stroke, engine has inherent smoothness that is difficult to match, so why not a 60 degree V6 of three liters displacement?
There'd be one less head and accompaning parasitic losses from cams and chains. One less set of manifolds to seal, one less head gasket.
Pairing the con-rods in a V6 allows for better thrust bearing load adjustment than sandwiching a third big end on a common journal with two others in a W9.
Narrowing the V angle and using an offset in the crank journals would make the packaging even more compact AND would allow cost saving in manufacturing by permitting the machining of one head, one exhaust manifold, one intake.
And a W3 already exists as an aftermarket motorcycle 50% change (not improvement) from the Harley-Davidson V-twin.
As an artistic endevour it is pretty. As a practical device, I feel it is a solution in search of a problem that doesn't exist.
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Old 01-17-2007, 12:48 PM   #4
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It's like three metros slammed, hood first, into each other at the same time and this is what was left when the bodies were pulled apart, lol.

I agree with Lug Nut:
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As an artistic endevour it is pretty. As a practical device, I feel it is a solution in search of a problem that doesn't exist.
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Old 01-17-2007, 01:00 PM   #5
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Wait a minute! What the hello is the firing order?
A four stroke engine makes two complete crank revolutions to fire each cylinder once. Two rotations is 720 degrees. There are nine cylinders. 720/9 means one cylinder would have to fire each 80 degrees for an even impulse.
Yet the engine is based on 120 degree offset in the crank throw AND 120 degrees in the outer V angle.
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Old 01-17-2007, 01:19 PM   #6
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Oh, my head! I can't let this one go!
I've figured out a firing order and it ain't pretty at all.
Crank at zero degrees. Number 1, 4 and 7 in left bank. Number 1 at TDC and fires.
rotate crank 120 degrees and fire #3.
rotate 60 degrees and fire #5.
rotate 60 degrees and fire #6.
rotate 120 degrees and fire #9.
rotate 60 degrees and fire #2.
rotate 60 degrees and fire #4.
rotate 120 degrees and fire #7.
rotate 60 degrees and fire #8.
rotate 60 and return to fire #1.
Aw hell, just take a V12 and pull every fourth spark plug wire.
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Old 01-17-2007, 10:25 PM   #7
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I'd love to slip an engine like this into a Lotus Elise.
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Old 01-18-2007, 05:09 AM   #8
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I'd love to slip an engine like this into a Lotus Elise.
I was thinking Ariel Atom.

526 HP for a 1071 lb curb weight...mmmmm
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Old 01-18-2007, 03:46 PM   #9
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With enough traction, that would be about an 8 second 1/4 mile at over 160 mph...

And gas mileage would still probably be pretty good, especially if a lightweight aerodynamic fairing is added.
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Old 01-19-2007, 03:58 PM   #10
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Ummmm.. why?
i think the bottom line there is weight and revvability. that and the block is designed to be a structural part of the frame. it is supposed to be like a motorcycle engine right? so it has to weigh less than my civic engine and rev to over 10krpm. i mean think about it. how much do any of our long blocks weigh?? engine alone the power coming from such a small size and weight is remarkable. i mean 17.1in long x 24.5in wide x 17.6in tall. that would fit under my hood without any issues. and it weighs around the same as my motor? thats rediculous!!! also i dont know of any naturally aspirated 3.0 liter v6s with a 12.7 or lower compression ratio that make over 350hp.
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