On Wed, Mar 10, 2010 at 4:11 PM, Rick Fochtman <[email protected]> wrote:
> Not so much high-horsepower engines, but rather high-compression engines. > Makes a HUGE difference in aircraft reciprocating engines. Higher > compression leads to higher heat buildup in the cylinder and that can lead > to pre-ignition, with seriously detrimental effect on the engine and the > power curve. Higher octane fuels reduce the pre-ignition problems. > Note that the distinction here is between *controlled combustion* and *detonation*, which is uncontrolled combustion and can cost you cylinder heads, blocks, valves, etc. Not a good thing. Are we far enough OT yet? ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
