Re: Re: Anyone still making flathead engines ???

Posted by RAB on December 12, 2002 at 14:31:00 from (195.93.50.10):

In Reply to: Re: Anyone still making flathead engines ??? posted by Don Wadge on December 12, 2002 at 11:08:59:

No first, or any other, hand knowledge but prolly the best advantage was the torque characteristics of these old designs, this mainly due to the long stroke and low rpm limit (required to breathe slowly)? I would think a 'blown' side valve would lose out on efficiency unless someone had developed a cross-flow head design as scavenging of exhaust gases using valve overlap could lead to quite a lot of charge going straight in and out! Maybe, one day, someone will re-invent the side-valve design.
Regards, RAB

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