twin 340s vs twin 465

[pacific4v]

I'm trying to decide which pumps I need to run. My car has a 5.0 stroker with over 11:1 cr, stock b head top end, a/a intercooled vortech si-trim @ around 12-13psi. I have aeromotive rails, regulator, -10 feed, -8 return, 03/04 tank, and I'm getting ready to buy a div x hat. I just sold my old fore pump with some unused 340 pumps because I was wanting to get the walbro 400s but it looks like those pumps are a bad idea for e85. My car will only run on e85. Will twin 340s be enough or should I get twin 465s? I'm expecting around 600rwhp.

 

[Carbd86GT]

The 340's will flow enough, but the DivisionX 340's are the only 340 pump rated to be E85 compatible to my knowledge. The 465 Walbro is also E85 compatible and will give you serious headroom. Hope that clears some things up.

Thanks.

 

[badcobra]

Twin 340's are plenty for 600. I make 300 more with twin 340's on e85. Good luck!

 

[caxo999]

340s is superb and reliable for me because i have much experienced about the 340s.I do not know E85 any one tell me that what is the characteristic of the E85?

 

[02SILVERBULLET]

almost 2 years on aeromotive 340's here in nothing but e85, but they are not really "certified" for it. if i was getting new pumps i would go 465's