Hi guys, I'm hoping for some advice rather than doing this the hard way again. I've got a EFI'ed 454 in my '68, making about 500RWHP. Ever since the conversion I've had an Aeromotive 11106 fuel pump with a 13105 fuel pressure regulator, connected directly to the stock sending unit. I've never had a starvation or stumbling issue even under WOT.

However, under high temperature the car has been dying. At first I thought it was an issue of fuel boiling in the metal hard line near the headers, but even when it dies I still have good solid flow through the return.

This spring I went to start it up, and the fuel pump is dead. I can't recall perfectly the instances of stalling, but it occurs to me that perhaps the fuel pump was failing all along. Apparently Aeromotive pumps are failure prone, especially if there is pump cavitation.

The amount of fuel flowing through the return makes it hard to believe that the issue is pump starvation/cavitation.



Suggestions for the best setup not to have to do this again?

1) Vetteworks adapter for LS1 fuel pump?
2) Rebuild the Aeromotive pump and hope it doesn't continue to be an issue?
3) Replace with different pump.
4) Install sump?
5) Install surge tank?
6) Another option I'm unaware of?

I'm looking for the least hassle, but I'd like to not have to deal with it again as well.

Advice and opinions are solicited. Cheers!

 

I've posted this here before, but I will post it again to show another option.

I went with an SS internal fuel pump/sump kit from Rock Valley, for noise level and because of the design that traps fuel around the pickup. The pump stays cool because it is submerged in the fuel. It cost $375 including the Walbro 255 LPH pump, and is very well made. It is made to fit into the stock tank. If my tank wasn't basically brand new, I would have went with the complete Rock Valley SS tank and fuel pump/sump. I had my local race shop weld it in my tank for me, then I custom bent SS hardlines for it. I then painted the tank.

































Here is my tank installed in the car:



No problems with this set up after a almost 3yrs of use. The pickup has never gone dry under any situation, and I have ran it almost completely empty a few times; once less than 1 gallon in the tank!

There is a new Aeromotive fuel pump/sump kit that looks interesting, it uses their 340 LPH pump, which coincedently is the same physical size as the Walbro 255 LPH pump:

http://aeromotiveinc.com/2012/11/phantom-fuel-system/

 

Oh dear, that is slick. I remember seeing that setup a while back now.

Looks like you leave the stock sending unit in for gas gauge?

The aeromotive setup is very slick as well, a little pricey but I'd bet it nets out the same with labor for welding the tank. I'm going to have to do a search and see if anyone has used that.

 

Yup, I am using the stock sending unit for the fuel gauge.

If I was doing this today, I would probably go for the Aeromotive unit. I wouldn't need any welding done, and the fuel pump is better. I also probably wouldn't have painted the tank with the Aeromotive unit, the only reason I did paint it was because of the welding.

In the end, the cost would probably be the same for both, or very close.