In tank pump or Ecternal?

[Nicholas Maiers]

What’s everyone’s Opinion on fuel pump such as the dw400 or a Holley external pump weighing my options

 

[Pronto]

Guys with internal pumps run 9s....

 

[Nicholas Maiers]

Guys with internal pumps run 9s....

Oh I know just curious as to what the pros and cons


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[Turbo6inKY]

Oh I know just curious as to what the pros and cons


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There are no cons to an in tank pump.

 

[dank GN]

I did a custom dual walbro 450 setup. The single 450 made 750rwhp with a boost a pump On e85 . I also have 160lb injectors. For e85 I wouldn’t go with anything smaller then 120s . Just my opinion .

 

[dank GN]

Here is a picture of my intank setup

 

[Nicholas Maiers]

Nice thanks for the info

 

[1986 Buick GX1]

I upgraded to a Bosch external pump in the early '90's that I got from Conelys Performance Plus. I had it mounted to a plate welded to the passenger side fuel tank strap spacer with an exhaust U-bolt clamp insulated by two layers of large fuel hoses.
It was quieter than the in- tank pump.
I changed back to an in- tank pump because I got tired of the extra fuel hose connecting to the external pump, well that and going bigger.

Now days it seems the plumbing is more streamlined on the external pumps.

I think it boils down to personal preference.