05-15-2009, 09:22 AM
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Senior Club Cobra Member
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Join Date: Feb 2007
Cobra Make, Engine: KMP 539, a Ton of Aluminum
Posts: 9,592
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Not Ranked
Quote:
Originally Posted by FUNFER2
If one does not race, how important or not, is a pump for a driver that the car may sit for several days without running ? At start up, my pressure takes a few cranks before it reaches 40 lbs. Usually during this process, it also takes several cranks for the fuel to reach the carb. anyway. So, does a engine need a pump in my application, or is one just a waste of money for something cool to have ? I realize people that have one will say they need and love it but, lets be straight forward.
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Here's my $0.02. I'm not an engine builder like many here on CC, but I have basically the same reasoning as you. My engine takes a few cranks before it starts, it gets oil pressure before ignition and then after it starts I bring the idle immediately up to 1,500 rpm +/- and warm up the car for a couple of minutes. I will never say never, but I just think the pre-oiler adds one more complexity, where one isn't needed. |
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