Walbro 416 e85 was the one I was looking at. I think its the highest flow in tank pump I can find that fits the s2000

 

E85 is gods gift to earth. you should always run E85 if you can.
i would need $14/gallon race gas to be doing what im doing with my car.

the only pump i would run with E85 is a Walbro 416/450/whatever the hell they call it E85 pump. hardwire it to a relay and be done with it. on an Evo they can make 700whp on a mustang dyno on a single pump. thats close to 800hp on a dynojet. and we're usually pushing 80psi at the rail. pretty impressive.

My car sits all winter and is fine. i think my car has been sitting since like october and i started it up in first week of april and it was fine and its been sitting again since lol.
just make sure you run a catch can, or at least vent everything because the moisture will typically end up in there


cliffnotes: DO IT

 

im so close to finishing my build d-bo but still stuck on injector size.. lol really want the 1300 since they should idle better when on pump and being stainless...just hope i can push them to 600. i keep going back and forth lol

 

How does the aem and fb 340 compare to the walbro 416?

Is it noisier too?

 

Well here is a noob question. What exactly is a catch can? Why do I need it?

 

Im going for 520whp-ish. Im going to be running ID1000 injectors with SOS dual pump surge tank. With Dual AEM 320 e85 pumps in the surge tank along with 1 additional AEM 320 e85 pump in the fuel tank itself feeding the surgetabk with an AEM fuel rail.

I really think my setup is capable of more than 550whp, but I dont want to have my hopes to high. Ill be happy with 500whp on e85.

 

I've been considering switching to a flex-fuel setup after all these recent threads on the topic... I've got a 320 pump, ID1000's, AEM FPR, and stock lines. Are you saying that fueling setup should support 500 WHP? Because looking at the ID calculator it won't get anywhere near that high. Even raising the base pressure it won't get that high.

I'm at 393 WHP on 93 octane right now. I'd like to run a flex-fuel setup just because E85 is awesome... but I need to know if my current fueling setup will support a full E85 tune. Based on that ID calculator, I don't think it will...

 

^Not with your single 320 pump.

 

Damn. I thought the 320 pump could outrun the ID1000's? So the pump would be my limiting factor; not the injectors.

 

When you crank up the boost, the pump starts dropping flow. When you boost the base pressure, the pump drops flow. When you crank up the base pressure and boost, your pump falls on its face.




The trick is to maintain flow when you're cranking the boost/reference pressure up. This is where multiple pumps do well. On my STi, I have ID1000's at a base pressure of 50 PSI. With the DW300 (320 lph) pump, I was in the upper 90's for IDC at 23 PSI. Without changing anything but the fuel pump, I went to a 450lph pump and brought my IDC's down to the mid 80's because the pump was able to flow more at that load.

In short, the pump behaves like a much smaller pump the higher the pressure you go.