Re: Re: Long stroke v. Short

Posted by G Taylor on October 14, 2001 at 20:24:11 from (129.37.170.14):

In Reply to: Re: Long stroke v. Short posted by F14 on October 14, 2001 at 16:57:25:

A short stroke engine has a wide combustion chamber with more room for larger valves. More HP per cubic inch due to high rpm breathing. Ideal piston speed is reached with higher crank rpms, which is better for variable rpm loads such as pickup trucks.
Long stroke engines have a tall narrow combustion chamber that tends to have less surface area to loose heat into the head. The smaller valves & ports retain airflow velocity therefore torque when rpms are lugged down. A long stroke engine is better suited to low rpm loads such a ships/generators yet obtain ideal piston speed & lots of cubic inches to produce the required HP. Often used for loads requiring one constant rpm.
Then again F14 & Burrhead have it accurately pegged as well.

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