Walbro in 240sx

[sr20detmaybe]

Will it be ok to put a walbro 255lph in my car with everything else fuel related being stock? I just want to go ahead and put the Walbro pump in before I do the SR swap which ill start in a couple of weeks. Thanks.

[SlidnSideways]

My brother did...Ran it for bout 6 months afterwards too.

It still runs but he dropped his fuel tank out to do some welding on the frame because of rust. He wont pass emissions but were not sure if thats walbro related or not...i dont think he passed before it...

--Tim--

[sr20detmaybe]

so it should be ok?

[:: orion ::]

As long as your FPR is in OK shape, NOTHING will change.

A lot of people will say their base fuel pressure went up when they installed a Walbro, but that's usually due to a bad or dying FPR.

Basically, it will run just like stock, but have the capacity to flow A LOT more fuel if needed.

- Brian

[InsanityInc]

As long as your FPR is in OK shape, NOTHING will change.

A lot of people will say their base fuel pressure went up when they installed a Walbro, but that's usually due to a bad or dying FPR.

Basically, it will run just like stock, but have the capacity to flow A LOT more fuel if needed.

- Brian

No, your fuel pressure will go up. End of story. It has nothing to do with a broken FPR. I tried a brand new one on my car, still had high fuel pressure. Put the other fuel pump back in, went down. I run an adjustable FPR now. If the pump is flowing more CFM through the same size opening, you will have more pressure in the rail, it's very simple math.

[skatanic28]

No, your fuel pressure will go up. End of story. It has nothing to do with a broken FPR. I tried a brand new one on my car, still had high fuel pressure. Put the other fuel pump back in, went down. I run an adjustable FPR now. If the pump is flowing more CFM through the same size opening, you will have more pressure in the rail, it's very simple math.

my fuel pressure didnt change when i switched to the 255lph, and i've seen the same with a couple others as well.

[InsanityInc]

my fuel pressure didnt change when i switched to the 255lph, and i've seen the same with a couple others as well.

Are you sure you're measuring it in the right place?

EDIT: also, are you sure it's actually a 255lph? Walbro does sell ones that have stock flow. What pressure are you reading, anyway?
Modified by InsanityInc at 10:43 PM 6/24/2005

[tiger]

I luv the little hum they make. I have 2 , 255lph pumps, a brand new HKS one and a older hks one.