Cold Desert Rat Posted June 14, 2023 Share Posted June 14, 2023 ....suppose this was inevitable my apologies if already posted 2 Link to comment Share on other sites More sharing options...
audiomick Posted June 14, 2023 Share Posted June 14, 2023 How could anyone do that to a Sport 1100? Link to comment Share on other sites More sharing options...
ScuRoo Posted June 15, 2023 Share Posted June 15, 2023 Tried that on a bird once - yeah nah not for me so went back riding stock Link to comment Share on other sites More sharing options...
Cold Desert Rat Posted June 15, 2023 Author Share Posted June 15, 2023 it would require a new camshaft, no? not sure i would call it an improvement. the pipes are cool. Link to comment Share on other sites More sharing options...
pete roper Posted June 15, 2023 Share Posted June 15, 2023 It was tried in the seventies by an endurance racing team in Europe, a complete disaster, it shed the heads off exhaust valves like confetti. There's a reason the exhausts exit into the airflow. With the race team there was some crackpot theory about getting some supercharging effect from the bell mouths facing forward. With this bit of hubristic, dunderhead engineering even that doesn't fly because it's wearing foam rock strainers! This sort of nonsense seems popular with Germans for some reason. 3 Link to comment Share on other sites More sharing options...
pete roper Posted June 16, 2023 Share Posted June 16, 2023 10 hours ago, Cold Desert Rat said: it would require a new camshaft, no? not sure i would call it an improvement. the pipes are cool. Yup, reversed camshaft. 1 Link to comment Share on other sites More sharing options...
GuzziMoto Posted June 16, 2023 Share Posted June 16, 2023 Odd thing to do. But it does give the exhaust a better shot out the back. The heat issue, that is another thing. And the intakes in front like that no doubt work horribly. For comparison, it would be like sticking your head out a car window while moving (facing forward) and trying to breath in. Aerodynamics will actually make it harder to suck in air like that. Also funny, now Guzzi has finally designed and built a motor with the exhaust to the side and the intake into the center of the V. That is probably the ideal set up for a V twin Guzzi. The exhaust side gets its cooling, the intakes can be better designed and centralized, and the riders knees don't argue with the intake tract. 1 Link to comment Share on other sites More sharing options...
pete roper Posted June 16, 2023 Share Posted June 16, 2023 With the WC motor it's more the fact that the direct action cam drive from the DOHC's dictates that the throttlebodies will be in the valley and the exhausts out the side but of course it also allows for direct downdraught induction meaning far better cylinder fill and less wasted charge. How they ever got the old Hi-Cam to make a genuine 100RWHP I have no real idea? But it does. Witchcraft I reckon, but it has a terrifying thirst due to waste and could never hope to meet €5 emissions targets. 3 Link to comment Share on other sites More sharing options...
MartyNZ Posted June 18, 2023 Share Posted June 18, 2023 Any guesses which port on this air-cooled cylinder head is the exhaust port? Once water cooling is introduced, the exhaust port orientation becomes less important 2 Link to comment Share on other sites More sharing options...
Pressureangle Posted June 18, 2023 Share Posted June 18, 2023 8 hours ago, MartyNZ said: Any guesses which port on this air-cooled cylinder head is the exhaust port? Once water cooling is introduced, the exhaust port orientation becomes less important The studded side is the exhaust, the intake side the spigot. Edit; rhetorical questions before coffee. Not fair. 2 4 Link to comment Share on other sites More sharing options...
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