[Joel Koontz]

Thanks for the info/links etc. I too would be interested in seeing some photos if you could post them. I would like to go to this type of system if I become confident that it does not have any significant drawbacks.

How does the sump operate. It appears to just be a small pan that the fuel pump sets in. Is there more to it than that? Does it have trap doors or one way valves or anything of that sort? If it is just a pan, it seems like if you were cruising down a level road it would run out of fuel in the pan, long before the tank would be empty.

I agree that the intank pumps are normally the quietest electric fuel pumps and are generally MUCH quieter than external pumps, except of for stock type mechanical pumps. I had a 95 Z-28 and currently have a 2000 Corvette. The Corvette has the stock pump and the Z-28 had a 255 LPH pump. I never heard the pumps with the engines running (Corvette has quiet stock exhaust), barely heard it with the engine off.

Intank pumps are also generally very reliable, primarily because they are sumberged in fuel and fuel (unless they get run dry) keeps them very cool. If run dry, they will quickly be damaged but that is also true of extenal electric fuel pumps.