Thread: Walboro 400lph

Has anyone used one yet?

Introducing the Walbro 400 Fuel Pump! – Dynosty

This may be a great option. If this will drop in just like the 255 does I may go this route.

^I saw this in someones mod list on another forum, but didn't think to look it up. I think it was someone with an Evo if I'm not mistaken. This would be awesome to have.

Yeah, sounds like a good pump. however you will need to run a larger gauge power wire probably at least a 10 or 8 gauge wire to the back and run a high amp relay which you can trigger using your normal fuel pump wiring. The amp draw on that pump is very high. Also it doesnt like high pressures and flow drops significantly at higher pressures than 75psi. So if you go that route best to run a 3 bar base fuel pressure to be safe. But yeah should flow enough fuel for 600-650whp on gas

Again other than needing to upgrade your wiring to run it, it looks like a pretty good pump. The deutsworks 310 pump is the same way about needing upgraded wiring but flows better at higher pressures than this one. There are some pretty good intank options being pumped out though. I like it.

I have problems with walbro pump they have short life and on hard mods lost pressure .. Whe i buy the bosh 044 i resolve all my problems!! With only $179 US
My engine was happy after that

Btw.. Just my 2 cents

It looks good, I'm using a 255lph on my B14. I'd consider the 255 an overkill for my n/a b14.
But 400lph should be good for high hp setups., ashtonsser has some good info, he knows all about high hp.
I know a guy who runs a 255lph on his evo, (E85 & 1000cc injectors) he hasnt had any problems with this setup.

Rob not sure that it will fit the b13 due to the large flare at the bottom. iirc the mounting sleeve goes from the top of the pump to the bottom and that would be in the way. I agree with ashton that you would want to run a voltage step up relay at the very least. I have been debating as well if I should upgrade to a 340lph pump. I will say the specs look good and the price is right.

I decided to go with the Aeromotive Stealth.

The new Walboro scares me because of the figment.

Good decision I have seen a few people run the aeromotive stealth pumps and they have never had anything bad to say they where all very happy with there decisions .

Yeah I have been checking out the aeromotive pumps as well. I am not at the limit of my 255lph pump but I like to have head room just in case.