fuel pump

load71

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Oct 28, 2004

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Aug 23, 2005

#1

• Aug 23, 2005

• #1

As of right now i have a 155 fuel pump in my car. Since the accident i am in the process of swapping everything over to shell. I am going to be doing a 331 stroker with trick heads, custom cam? and intake. I was wondering what size injectors, and do i need a bigger fuel pump, or can i kept the 155? Also what size meter should i get, i want to go with pro M! Thanks guys

 

jrichker

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Aug 23, 2005

#2

• Aug 23, 2005

• #2

A 155 LPH pump will work good with 24 Lb injectors.

 

load71

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Aug 23, 2005

#3

• Aug 23, 2005

• #3

jrichker said:

A 155 LPH pump will work good with 24 Lb injectors.

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So i should go with the 24's? Not 30's?

 

load71

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Aug 24, 2005

#4

• Aug 24, 2005

• #4

any one eles?

 

$uperstang

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Aug 24, 2005

#5

• Aug 24, 2005

• #5

Take it from me 24's are fine!

 

load71

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Aug 25, 2005

#6

• Aug 25, 2005

• #6

What size meter? Pro M 77 would be fine to?

 

$uperstang

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Aug 25, 2005

#7

• Aug 25, 2005

• #7

load71 said:

What size meter? Pro M 77 would be fine to?

Click to expand...

What size Throttle body are you going to use?

 

load71

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Aug 25, 2005

#8

• Aug 25, 2005

• #8

$uperstang said:

What size Throttle body are you going to use?

Click to expand...

accufab 70MM

 

vristang

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Mar 31, 2005

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Aug 25, 2005

#9

• Aug 25, 2005

• #9

Injector and pump size are dependant upon hp levels. Let me know what power level you will be at and I can run the numbers for the injectors. Here is the info on fuel pumps...

Ford EFI Options____N/A 80%________Boost 80%

110_________________240hp__________200hp

155_________________340____________280

190_________________420____________340

255_________________560 ___________460


Running the pump at 80% of its full capacity keeps the pump from overheating, which extends its life, and provides a margin of safety for max output runs. Same applies to injectors.
By the way these are flywheel numbers, not rwhp.

 

S

stroked86

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Jul 23, 2002

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ct

Aug 25, 2005

#10

• Aug 25, 2005

• #10

I would go with 30's or 36's they say 24's are good for 350 or so but there is no room plus you'll be running the injector to hard you want to be around 85% duty cycle for an injector... you can make it with 24's but if your buying them anyway I would run one of the other two and go with a 80mm mass air as for the pump it might work but you will probably run out of that on the top end also with a 155 I would just get the 255 and be done with it.....

 

Daniel50

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Mar 30, 2005

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Aug 25, 2005

#11

• Aug 25, 2005

• #11

buy a 255lph and be done with it. will support your fuel system for anything just about you do and all the extra fuel is sent back to the tank

 

vikingpower

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Dec 6, 2004

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CWU Ellensburg, WA

Aug 25, 2005

#12

• Aug 25, 2005

• #12

I've had a 255 pump for about a year now, no probs so far with my mild setup... it did burn up some of the factory wiring though so I replaced with an inline 12amp fuse and 12 guage wire I think