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Lowspeed Lowside · April 27th, 2011, 02:08 PM

@CThunder-blue

Keeping it theoretical, as far as I understand we have three parameters (idle, midrange, and throttle) in the carburetors to adjust the air/fuel ratio in the throttle-position/rpm plane. When we supercharge the engine, we're only adding a linear component, but the overall shape of the plane doesn't change, whereas a turbocharging is non-linear and will warp the surface. Maybe we can do something by adding an adjustable non-linear component, like putting the fuel-line under turbo pressure? (I'm not claiming that this works)

Also, turbochargers are cheap because they are used/mode by many manufactures, but AFAIK superchargers are a real niche-product. But why not make our own? Do you think we can make a supercharger for $500? We wouldn't have to touch the exhaust, so this is simpler and I think we can afford to spend a little more on this than on a turbocharger.

April 27th, 2011, 02:08 PM	#45
Lowspeed Lowside Tightwad Tinker Name: Hans Location: Lexington, Ky Join Date: Apr 2011 Motorcycle(s): '09 Ninja 250R Posts: 161	@CThunder-blue Keeping it theoretical, as far as I understand we have three parameters (idle, midrange, and throttle) in the carburetors to adjust the air/fuel ratio in the throttle-position/rpm plane. When we supercharge the engine, we're only adding a linear component, but the overall shape of the plane doesn't change, whereas a turbocharging is non-linear and will warp the surface. Maybe we can do something by adding an adjustable non-linear component, like putting the fuel-line under turbo pressure? (I'm not claiming that this works) Also, turbochargers are cheap because they are used/mode by many manufactures, but AFAIK superchargers are a real niche-product. But why not make our own? Do you think we can make a supercharger for $500? We wouldn't have to touch the exhaust, so this is simpler and I think we can afford to spend a little more on this than on a turbocharger.