High Volume Fuel Pump Question...

haulbalz

Founding Member

Apr 6, 2002

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Jul 26, 2005

#1

• Jul 26, 2005

• #1

With My Combination Do I Need A High Volume Fuel Pump? Would It Help Me Any? The Car Runs Great, But Just Wondered If That's Something To Do Now, Or Wait Till I Get The Blower...

 

FastFord

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Sep 5, 2002

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Washington

Jul 26, 2005

#2

• Jul 26, 2005

• #2

Well, I upgraded when I installed H/C/I.. but if it runs fine... wait til the Paxton.

 

W

wytstang

Mustang Master

Mar 14, 2004

4,988

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Summerville,SC missing South Fl. weather :(

Jul 26, 2005

#3

• Jul 26, 2005

• #3

You might as well install a 255lph, you maybe straining your stock unit as is.

 

final5-0

Mustang Master

Apr 6, 2003

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DFW Texas

Jul 26, 2005

#4

• Jul 26, 2005

• #4

What pump and inj's are you running at this time?

Later
Grady

 

haulbalz

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#5

• Jul 26, 2005

• #5

Stock Pump, 24lb Injectors

 

final5-0

Mustang Master

Apr 6, 2003

6,817

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DFW Texas

Jul 26, 2005

#6

• Jul 26, 2005

• #6

haulbalz said:

Stock Pump, 24lb Injectors

Click to expand...

I don't feel like the stock pump is enough to support your current combo.

Considering your forced combo plans, the stocker is gonna be way too small.

As the others have said, go for the high pressure 255lph pump.

After you upgrade the pump, what are your plans for the rest of the fuel system?

What about those flat top pistons, how much compression do you currently think you have?

Later
Grady

 

haulbalz

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Jul 26, 2005

#7

• Jul 26, 2005

• #7

possibly 10:1

 

Black95GTS

Active Member

Jan 8, 2004

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Marlborough, MA

Jul 26, 2005

#8

• Jul 26, 2005

• #8

haulbalz said:

possibly 10:1

Click to expand...

thats ballsy with a blower... how much boost are you gonna run?

subscribing as I think a Vortech kit is in my recently employed at a good job future.

 

haulbalz

Founding Member

Apr 6, 2002

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Jul 26, 2005

#9

• Jul 26, 2005

• #9

not much boost, it might not even be 10:1...

 

blksn955.o

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Mar 15, 2002

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st.louis mo 314

Jul 26, 2005

#10

• Jul 26, 2005

• #10

I have always heard the 255lph pump was overkill as the lines and rail cannot flow close to that even with our larger than the fox rail. This was the biggest reason I got a 190lph pump.

Anyone else subscribe to this thought/idea?

 

final5-0

Mustang Master

Apr 6, 2003

6,817

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Jul 26, 2005

#11

• Jul 26, 2005

• #11

blksn955.o said:

I have always heard the 255lph pump was overkill as the lines and rail cannot flow close to that even with our larger than the fox rail. This was the biggest reason I got a 190lph pump.

Anyone else subscribe to this thought/idea?

Click to expand...

I think that falls into the same camp as ..............................

373's will rev too high on the highway

putting a fox pcm in a 94-95

putting the 3rd or 4th stock h b on a 94-95

and other misc internet myths or ........................

just plain not so smart things to do

Later
Grady

 

blksn955.o

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st.louis mo 314

Jul 26, 2005

#12

• Jul 26, 2005

• #12

I see that point. Just wondering if there are any flow numbers on what the max flow in relation to pump lph on the stock fuel lines/rails are. There has to be a point were they are a real issue, and whatnot.

what is the stock h b ? head/block, h pipe?

 

final5-0

Mustang Master

Apr 6, 2003

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DFW Texas

Jul 26, 2005

#13

• Jul 26, 2005

• #13

blksn955.o said:

I see that point. Just wondering if there are any flow numbers on what the max flow in relation to pump lph on the stock fuel lines/rails are. There has to be a point were they are a real issue, and whatnot.

what is the stock h b ? head/block, h pipe?

Click to expand...

Greg

Not too long after our cars came out the Fox boys started to use our rails to support high hp forced combos and they were using 255lph in tank AND in line pumps together to feed those rails. I guess that is why I kinda sorta don't believe the overkill thing.

I do want to say that I have no hard data to say that either one of us are right or wrong about this subject.

btw ...... h b is harmonic balancer.

Later
Grady

 

blksn955.o

Founding Member

Mar 15, 2002

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st.louis mo 314

Jul 26, 2005

#14

• Jul 26, 2005

• #14

I had heard our rails were better than the fox's, one thing even they will say our 94-95's have thats better .

I always just wanderd' were the line was. I fig. that the 190lph I have should be able to hang with my power level/needs as its like 2x's the stock pump and worse for worse I could add an inline.

stock harm. ball. yes that is bad, did it 2x's (was under part warranty) and said I'm done got a pioneer unit.

 

final5-0

Mustang Master

Apr 6, 2003

6,817

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#15

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blksn955.o said:

stock harm. ball. yes that is bad, did it 2x's (was under part warranty) and said I'm done got a pioneer unit.

Click to expand...

I run a Poineer as well

Very nice hb and another nice thing was the install of it was nothing like I've seen the Romac users talk about

Later
Grady

 

M

mackey

Active Member

Jan 25, 2003

1,284

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38

Beverly, Massachusetts

Jul 26, 2005

#16

• Jul 26, 2005

• #16

Stock pump is rated at 89lbs and hr. It flows a bit less though.