suspended from racing and asked never to return


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Posted by clueless [201.202.22.114] on Monday, April 15, 2013 at 23:51:18 :

In Reply to: nothing fancy--lolol posted by clueless [201.202.22.114] on Monday, April 15, 2013 at 23:41:31 :

Hey Hudson, would one cylinder be considered in-line?
I've had a lot of experiance with flathead one cylinder engines. We had a lot of restrictions on our rules so we had to get inovative.
One thing to improve breathing without disturbing the combustion chamber is to move the head off center towards the valves. By either necking down the head bolts or sloting the head bolt holes in the head. The more tne better, but in the Briggs, in order to still have enough gasket surface 0.070 to 0.080 was all we could go and it made a significant improvement.
Another thing we did was to reduce the head diameter on the valves, thus putting the margin near the edge of the valve. This seemed to work well also to increase flow.
These two things helped us get suspended from racing and asked to never return.
Frank
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