What is the is the part #for the walbro high pressure fuel pump?

[bjl95mustang]

I have seen gss340 around but i'm kind of lost on the part numbers and gss340 dosent really show up much. Off hand does anyone know the 255lph high pressure part # and where to get one cheap?

Thanks,
Brandon

 

[SQUEEZE&STROKE]

ARE YOU LOOKING TO BUY ONE? If so I have a BBK 255 in tank pump still in the pickup for sale. pm me if you are interested.

 

[bjl95mustang]

I need the 255 that is a high pressure unit. I think walbro makes one and i need to try finding the part# so i make sure i get the right one.

Brandon

 

[Redsnk95]

The Walbro GSS340 is the high pressure 255lph, the GSS307 is the standard 255lph. I would buy it from Alan Kennedy at www.fuelsystems.biz

Troy

 

[18mustangs]

Walbro makes the a lot of the aftermarket fuel pumps out there like BBK and Holley. Shop around and you'll get one at a good price.

 

[bjl95mustang]

Like I said i'm looking for a place that carries the high pressure pump. not the standard 255 pump.

 

[Redsnk95]

Guess you just skipped right over my post...

Troy

 

[bjl95mustang]

i didnt if they are $120 for the 255 high pressure the i will order one tomorrow.

Brandon

 

[CManT1914]

Brandon, when looking on eBay a few weeks ago for fuel pumps, ALL I SAW was Walbro. I didn't pay attention to them though. But you might check out eBay, they were pretty cheap if I remember.

 

[bjl95mustang]

All I saw was the reg 255 not the high pressure 255 pimps.

 

[Dbeck002]

Question.

I know summit stuff isnt the highest quality but it seems that walbro makes every fuel pump, BBK, Holley and summit as well..

Or is there a difference between the summit and BBK because the summit one is cheaper and looks IDENTICAL. Please clarify this. Thanks.

 

[bjl95mustang]

The Walbro GSS340 is the high pressure 255lph, the GSS307 is the standard 255lph. I would buy it from Alan Kennedy at www.fuelsystems.biz

Troy

Well, I talked to him in an e-mail and said I wanted one. I havent heard from him in a few days and no responses to my e-mails now.

So soes anyone know a place that has the gss340 high pressure pump in stock? I dont want the high flow or the reg one.

Thanks,
Brandon

 

[GTPhreak]

www.jdsperformance.com ?

 

[SeventyMach1]

Dumb question. So what exactly is the difference in the two? When would you need the HP over the regular one?

 

[bjl95mustang]

www.jdsperformance.com ?

Thanks

 

[5.0_GT_kid]

Dumb question. So what exactly is the difference in the two? When would you need the HP over the regular one?

I'd like to know too.

 

[final5-0]

Dumb question. So what exactly is the difference in the two? When would you need the HP over the regular one?

Several years ago they used to refer to the two pumps as a high volume and a high pressure pump.

Quite a few of the guys on the power adder boards complained of not being to get their pressure below the low 40's when using the high pressure pump.

At that time, blown combos were tuned by mostly mechanical means and the only custom tune was a chip. So you can see that when a guy got big inj's and he had low pulse width issues, which so often happens with them, he had trouble cause he could not get his pressure low enough.

With that being said, the norm back then was for the NA combos to use the high volume pump and the forced combos used the high pressure pump.

As time marched on, you saw fewer complaints about the high pressure pumps and my guess would be that the quality of the fuel pressure regulators improved.

Later
Grady

 

[HISSIN50]

I like Grady's line of thinking. With the standard 255, under or around 40 PSI it acts the same as the High pressure 255. But at real high pressures (like forced induction guys running 70 PSI for bursts), the high pressure pump keeps the flow up accordingly, whereas the non-HP pump does not.