| Re: Vaporlock baseline temperatures [message #211838 is a reply to message #211128] |
Fri, 21 June 2013 18:11  |
Michael Morton
Messages: 21
Registered: July 2004
Karma:
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Junior Member |
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Les, When running aluminum heads it is generally accepted that you can run about 1 point higher compression without detonation problems. I have my timing set as high as I can and not get any ping, I usually run mid grade fuel and have no problems. I occasionally run 87 and if it is really cheap stuff, I will hear a little pinging, usually not. Some have suggested running the fuel pump with an extra outlet for the return. My way of thinking is that the only place that the fuel comes in contact with the hot engine is the fuel pump, I see that as a major source of heat and that setup would do nothing for the hot fuel between the pump and carb. I think that pulling the return just before it enters the carb is the best way to go. Some have suggested a fuel cooler setup, I like the KISS principle and don't like the idea of adding another possible leak source under the hood, I don't want to make it more complicated when this seems to work fine. I'm not saying this will work for everyone but it certainly has eliminated my problem.
Mike
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