I'll be needing this soon

 

looks good bro

 

Thanks for the post. Just curious to its potential.. Keep us posted..

 

nah its pretty quite

 

Ya def will post some dyno sheets when where finished tunning.. They just put one in there shop outback wagon today.

 

is anyone making big power with this pump? just curious to know how much power it will support.

 

nice

 

This is the first walbro 400 install I have seen that retains the bottom cap. Does the sock filter fit with the cap on?

 

The stock OEM fuel pump filter will fit with the bottom cap on, but the filter that comes with the Walbro 400 fuel pump will not.

 

great to see people defying the odds and making these work.
I got an aeromotive 340 as i was told these don't fit, but due to the failures with the 340s i may look into these down the track.

kepp up the good work!

 

ya stock filter works

hell ya our 400 is holding up fine at 654whp

 

Are you on e85? This is beyond tempting!

 

Isn't the inlet hole on the w400 larger than a w255?

 

I'm not sure about the inlet hole sizes but either filter fits well on the 400. I just started getting tuned with the 400 and I've gone leaner after changing the 255 to a 400 and installing an ajustable FPR

 

nice