i just got the 400lph walbro but it says t1 on the pump
the box is walbro

i will install and dyno tonite
hope it helps...

 

new

 

compare

 

nice to see its a simply drop in install like the 255, in for dyno's!

Wonder what could be made with this and some id1000's on the syrup

 

installed

 

Nice! Looks like it might work on a full-blown dual walbro kit

 

this is all i made last time
it ran out of gas when i hit the button from 4.5-6k

 

setup please.

 

1.8l ls vtec

-head
stock head
stock cams
supertech valve springs and retainers
jg intake manifold

-block
je pistons 81mm
eagle rods
stock ls crank

-fuel
1600cc injectors bosh
walbro 400lph
-6an fitting at fuel filter to rail
stock fuel rail

-turbo
south florida t4 turbo mani
garrett t67 t4 .58
three inche down pipe to E-cut out
turbosmarth 48 gate

-mansauce
pice together nitrous kit
elderbrock and nos
100 shot

 

The base of the pump is 50mm and the rest of the pump is 39mm. The 255lph pump is 37mm all the way down, so if two 400lph pumps fit it'll be real tight because of the 50mm base. I'll try to find out on Friday and I'll take pics with the 400lph's on the FB hanger, saying that the pumps are in by then.

 

442hp with a 255lph pump and 1600cc injectors and out of gas? HP seems low and how can you run out of gas because I made 420hp with a 255lph and 750cc injectors but stopped it there because I had a massive boost creep (1bar to 21-22psi) and maxed out the 750's. My friend made 471hp with a 255lph and 1000cc injectors with room but stopped it there for safety. My turbo is a t3/t61 and my friends turbo was an SC61. My numbers are low for that psi and for that turbo but with that big of a creep, a lot of timing had to be pulled. I understand you're also squeezing but still shouldn't be running out of gas at that power level.

 

can these pumps run 100 psi base like the boschs?

 

When he said ran out of gas, I'm pretty sure (not 100% though), he meant the nitrous.
"it ran out of gas when i hit the button from 4.5-6k"

 

I know he's on nitrous, I mentioned it when I was referring to him squeezing. All I'm saying is a 255lph pump and 1600cc injectors should be able to support more than what he made whether he's on the bottle or not. Kritical's old blue hatch made 500hp on a Jackson Racing supercharger and nitrous, that was on a 255lph pump but I can't remember what size injectors.

 

In for results!!

 

sorry i didn t mention the gas

on 91 with water injection i maded 580whp
on e85 i only can make in the 550 s

im on a different kind of gas now ... on turbo only i can make in the mid 400s

 

my tuner say s not to say anything yet cause i m on a stock rail and my pressure gauge is broke so im swaping this out...

 

Looks like you are maxing out the pump, 255lph is good for about 600hp which is right around where you are at.

 

i just notice this 400lph pump is quieter then the 255lph
im like wtf

 

the 400lph is a turbine style which is more efficient and more quiet than the 255lph gerotor pump. I believe the 400lph will also heat the fuel less becuase of this more efficient pump design, will do some temperature measurements and find that out

 

Im gonna convert my em1 from the 255lph and bosch in-line to this single 400lph setup. Should be back on the dyno soon, shooting for over 600whp on e85 and 1600cc IDs. Im glad theyre quieter too, that 255 gets pretty annoying sometimes lol.

 

so did you dyno it with the new walbro 400? im thinking about buying one next week.

 

I just picked up my pumps, it doesn't say T1...it's actually TI Automotive in Europe. They collaborated with Walbro to design the pump.

 

there only like 40 bucks more (if you shop around) then a 255... pretty good!

 

You will run into fuel level issues running the sock/install kit that is pictured.