So I am probley going to get a new fuel tank made and was thinking of putting an electric pump in the tank. Has anyone done this? What's your thoughts? I would think that they would stay cool, and as long as the tanks baffeled good it should be protected from the vibrations and impacts. Was thinking of the add on aremotive or something similar so it comes with the mount. Thoughts?

Since Ive replaced three now over the last 2 years in my vehicles I wouldn't consider it. They are so chinsey also. At least easy to get at on a boat. Never thought about it to be honest.

Many of the wake and ski boats use them, see many with Ilmor engines. Unable to say about the high performance motors. I like the idea of external pumps for ease of access

I have never had any luck with external pumps. But all I have ever had was Holley Blue or red. I just thought the heat and lack of air moving in a boat would kill an external quick.

Mastercraft has done so since the 90's in certain models - currently all Indmar including with the Ford Raptor engine of theirs installs all fuel pumps in the gas tank. All the wakeboard boats are going this route and a lot has been set up that way.

Kinda what I'm hearing is the smaller more inland ski boats etc use them but how would they hold up out hammering big waves. Like you mentioned it would have to be protected and well secured somehow to hold up I'd think. Good thread though but I think I'd stay external mounted pump. Easy access and proven to work in all environments.

I looked into this hard a year or so ago as a way to defeat the dreaded symptom known as vapor lock. There was one guy who had built a small intermediate tank with an internal pump and return system. Looked like a cool set up but costly and would not work well for my situation. External pump and tank return will be the easiest route I'm sure. Good luck !

Ran across this. Looks interesting and fairly simple if not costly. If my external ever gives out I may consider going to something like this because the gas keeps the pump cool and generally pumps don't like to suck fuel out of the tank as you might have with an external.

https://www.youtube.com/watch?v=nZSBssihF8U

I just wish someone made an inexpensive lid / mount. The pumps are relatively cheep at 120. But they want an arm and a leg for the bulkhead. If I knew how to seal the wires up I would make one. I have been looking at car fuel pumps too that are all one unit.

the problem with V hulls is the fuel pump depth when going with in the tank fuel pumps is not long enough. I wanted to go this route 100 % but changed my mind. Anyways here is what Mastercraft has used for over 20 years even when ILmors were NOT around for the marine side.

Not my video but found this youtube link for reference viewing. The problem with their in tank fuel pump, is the bottom round fuel filter that needs to be changed but never does.

Common killer of these fuel pumps and Im sure this is what happened to this guy as this is his first time pulling the fuel pump as you can tell by the video. Anyways you can see the bottom round filter when he pulls the fuel pump out, I have actually seen this filter a completely blackish brownish from never ever being changed.

For some reason the vid starts 5 min into it. Back it up if need to be.

https://www.youtube.com/watch?v=Zhn1CwEhzzM