Netters, A friend drag races a methanol 568 Big Block powered 74 Corvette, and recently has been having some lean-out problems that have un-characteristicly put him on the trailer early. His EGT has jumped from the normal 1100 degrees to over 1500 degrees, his plugs indicate a lean condition, and he's running much hotter coolant temps. He's running 1/2 inch fuel lines, and replaced the fuel filter at the beginning of the season. I suggested that he test the output of the fuel pump, and although he insisted that the fuel pressure was 6 psi, he finally decided to test the pump for fuel output volume. Bingo! the fuel pump was supplying less than 1/2 of the volume than specified. Just to be sure it was the pump, and not a clogged strainer, he pulled the strainer out of the fuel cell, and of course it was clean. How does this relate to a KR? Look at the failure mode: Higher than normal EGT's Higher than normal cylinder head temps/faster than normal temperature climb Plugs indicate lean condition High speed stumble May or may not show a drop in fuel pressure. Seems to me that the only time you would notice a drop in fuel pressure would be at times when the engine is in high power settings such as during take-off and climb.
===== Scott Cable KR-2S # 735 Wright City, MO s2cab...@yahoo.com __________________________________ Do you Yahoo!? Friends. Fun. Try the all-new Yahoo! Messenger. http://messenger.yahoo.com/
