Importance of turbulent flow in combustion chamber
In looking at the various combustion chamber designs out there for a Hudson engine I was surprised when I got them all together. Below you will find closeups of the 1) stock design, 2) Clifford Al head design, and 3) the Twin Vortex design. It is interesting that the Hudson engineers gave quite a bit of thought to providing some swirl or turbulence to the flow in their combustion chamber design. The rounded area opposite the valves will provide definite flow as the gas fuel mixture enters one valve fires swirls back to the exhaust. What is even more surprising however is the very poor design of the supposed "High Performance" Clifford head. Basically, the air-fuel mixture is hitting a brick wall and there is no effort to make a swirl or any mixing in the chamber. All I can say here is wow! The Twin Vortex head as shown definitely ups the process with two areas to create swirl and turbulence in the combustion chamber, a definite improvement over stock and way better than the Clifford head.