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Old 08-20-2013, 12:09 PM   #17
mcmlxix
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Join Date: Apr 2003
Location: Las Vegas
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Re: Help with fuel system design for LS1 install

Quote:
Originally Posted by brossow View Post
Dragging out an old thread of mine....

Was just reading a thread on another site about electric fuel pumps and everyone there is saying that electric pumps MUST be located below the level of the fuel tank. As you can see in the picture below, mine is nearly at the top of the tank. There's a picture of a similar setup early in this thread where the pump is also mounted in the frame rail like mine, and I've seen similar elsewhere as well, so I want to assume that they're working fine, but this other thread has me needing to at least double-check. In the thread I was reading I think they were talking about carbureted setups rather than FI; not sure if that makes a different since FI will always be pressurized. What do you all think? Thanks to circumstances beyond my control, my '72 project is on hold but I want to be sure that I'm not doing something stupid when I get back to it.

Thanks,
Brent

I believe the basic premise is that your pump is designed to PUSH fuel, not PULL it... While it may work, it may have a slightly decreased life expectancy if it needs to prime the pump each time. By prime, I mean to pull the fuel from the bottom of the tank up to the height of the pump...
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