Won't the very close proximity to the radiator prevent this? Certainly once the car has warmed up. My engine bay always seems nice and warm, and it's generating half the horsepower you are projecting.
Hi Neil - that's exactly what I'm hoping but my preparer is not sure that's enough. And I get that carb icing in general is very important because the temp drop in the venturi is actually huge.
From Wiki:
Carburettor icing itself is caused by the temperature drop in the carburettor, as an effect of fuel vaporisation, and the temperature drop associated with the pressure drop in the venturi. If the temperature drops below freezing, water vapor will freeze onto the throttle valve, and other internal surfaces of the carburetor. The venturi effect can drop the ambient air temperature by 70 absolute degrees Fahrenheit (F), or 38.89 absolute degrees Celsius (C). In other words, air at an outside temperature of 100 degree F, can drop to 30 degrees F in the carburetor. Carburettor icing most often occurs when the outside air temperature is below 70 degrees F (21 degrees C) and the relative humidity is above 80 percent.Carb icing is/was a big problem in the UK because our air temp/humidity is usually right in this zone - this is why some manufacturers designed manifolds heated with water jackets. For example, see Lancia Fulvia manifold. But as you say, the Beta engine - being transverse - puts the manifold right behind the radiator and this is what I'm hoping will negate the problem.
I'm still very interested to hear from other twin-45 users as I'm still in a position to modify intakes.
Chris
