Re: Benefits of higher compression?.

Posted by buck on June 26, 2004 at 12:01:52 from (209.240.205.61):

In Reply to: Benefits of higher compression?. posted by Jonathan on June 26, 2004 at 08:32:41:

all good points thus far but lets look at in a little different fashion. Say for a given engine that at 6:1 that engine will generate 100 psi compression but you take say 50 thousants off the head and it is generating 150 psi compression and the ratio is now 8:1. Logic tells us that the 150 psi will generate more power than the 100. Now enter the fuel factor or higher octain. Considering octain as the resistance to burning then the higher octain will burn longer in the cylinder therefore keeping more pressure on the piston during the power stroke. As someone else mentioned continue this process and you have a diesel. I caution that without considering ignition,fuel delivery,air flow,ignition and valve timeing that this one process may be counter productve. We get a lifetime out o our old tractor engines. The NASCAR guys get one race and John Force gets one pass on the quarter mile.

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