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- Nov 16, 2010
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Indeed.............surely though if this is the case, then it would be a good idea to outline exactly what you have achieved through flow testing and developing heads, which are then used on road or race machinery?
Carbonfibre said:Indeed.............surely though if this is the case, then it would be a good idea to outline exactly what you have achieved through flow testing and developing heads, which are then used on road or race machinery?
Norton-Villier said:You can never learn to much comnoz, When you stop learning you become a know it all. Its hard to live with a know it all.
Phil
marinatlas said:Hi Jim, many thanks for those valuable informations........but to stay on a more simple ground what do you think of the difference between the std 32mm heads : combat , RH5, RH6, about flow ? we know the difference about the ratio, but is there some heads which flow better for the hot street, or must we stay with the 30mm?? Pierre.
Carbonfibre said:In regard to Norton heads modified by you, what increases in torque and power have been recorded on the dyno, when a bike fitted with one has been tested?
Carbonfibre said:The "venturi" effect in relation to cylinder head design is something that appears to work extremely well, but often when the port sizes are too big there is a need to reshape and make the ports smaller, rather than removing material to achieve the highest possible numbers on a flow bench.
comnoz said:For anyone who thinks 30 mm will not flow enough air I did a simple test. It is a 6 inch long piece of acrylic with a 30 mm hole through the center and a 1 inch radiused inlet and outlet. [nowhere near the optimum for flow]
On the flowbench it flowed 190.5 CFM at 28 inches which is enough to produce 64 horsepower per cylinder according to Superflow's formula. Do you think you need more air than that? Jim