Fuel Pump Question

traewolfe

Member

Aug 23, 2012

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St. Augustine, FL

Nov 14, 2012

#1

• Nov 14, 2012

• #1

I believe I have a stock fuel pump that needs to be replaced. I hear a lot about the 255lph's. I am shooting for like 300-350 hp range. Would a 190 lph be enough? What are the thoughts here!

 

Noobz347

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#2

• Nov 14, 2012

• #2

190 will be fine if you never plan to run boost or a Fuel Management Unit.

 

traewolfe

Member

Aug 23, 2012

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St. Augustine, FL

Nov 14, 2012

#3

• Nov 14, 2012

• #3

traewolfe said:

I believe I have a stock fuel pump that needs to be replaced. I hear a lot about the 255lph's. I am shooting for like 300-350 hp range. Would a 190 lph be enough? What are the thoughts here!

Click to expand...

Sorry for my ignorance, but what does a fuel management unit entail?

 

Noobz347

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#4

• Nov 14, 2012

• #4

traewolfe said:

Sorry for my ignorance, but what does a fuel management unit entail?

Click to expand...

It is a piece of equipment that ramps up fuel for boosted apps. 190lph Walbro pumps that are NOT high pressure tend to externally bypass at 60 psi. For a normally aspirated application, this isn't a problem.

 

revhead347

Apparently my ex-husband made that mistake.

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#5

• Nov 14, 2012

• #5

I always just throw in a 255lph because it's only $10 more.

Kurt

 

toyman

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#6

• Nov 14, 2012

• #6

^^And often for less.

 

traewolfe

Member

Aug 23, 2012

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St. Augustine, FL

Nov 15, 2012

#7

• Nov 15, 2012

• #7

Where...the one's I've seen are like $50 more?

 

VibrantRedGT

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Nov 15, 2012

#8

• Nov 15, 2012

• #8

Don't skimp here, go 255 or 340. I put a 190 in mine then went with a Vortech S-Trim supercharger and had lean issues. A Vortech 155 inline pump was required and was fine after this. Bigger is better here.

 

revhead347

Apparently my ex-husband made that mistake.

20+ Year Stangneter

Jun 14, 2004

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Nov 15, 2012

#9

• Nov 15, 2012

• #9

I guess it depends on what brands you are looking for. I only use Motorsport or Walbro pumps. It's about a $10 difference on Summit.

Kurt

 

95opal

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#10

• Nov 15, 2012

• #10

VibrantRedGT said:

Don't skimp here, go 255 or 340. I put a 190 in mine then went with a Vortech S-Trim supercharger and had lean issues. A Vortech 155 inline pump was required and was fine after this. Bigger is better here.

Click to expand...

Im with vibrant bigger is better

 

toyman

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#11

• Nov 15, 2012

• #11

You want both a high volume and high pressure unit. I would suggest you get a Walbro GSS340 255 lph fuel pump. Buy one with the install kit rather than reusing the hoses, clamps and other small parts. $100 is the bench mark pump and kit price.