what is your fuel pressure set at/w 24lb inj !

8

89lxcoupe

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Oct 6, 2001

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harlan,ky

Nov 9, 2006

#1

• Nov 9, 2006

• #1

mods in sig what have you got your fuel pressure on ! thanks.....

 

T

Topdowncruise

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Apr 7, 2005

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Nov 9, 2006

#2

• Nov 9, 2006

• #2

39

 

FastGT50Stang

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Sep 19, 2005

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Nov 9, 2006

#3

• Nov 9, 2006

• #3

89lxcoupe said:

mods in sig what have you got your fuel pressure on ! thanks.....

Click to expand...

mine is at 39psi too....

 

bullitstang1313

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Jan 21, 2003

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Nov 10, 2006

#4

• Nov 10, 2006

• #4

39 psi as well

 

8

89lxcoupe

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harlan,ky

Nov 10, 2006

#5

• Nov 10, 2006

• #5

well my kirban fpr wont let me adj it no lower than like 43 psi ? i can't figure it out and my pressure drops when i rev it !

 

S

Sicarius428

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Jan 6, 2004

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Nov 10, 2006

#6

• Nov 10, 2006

• #6

Fuel filter or Fuel pump not keeping up possibly?
Kevin

 

bullitstang1313

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Nov 10, 2006

#7

• Nov 10, 2006

• #7

Have you checked your vacuum? If the pressure drops when you rev it, then maybe it is not seeing the change in vacuum during acceleration. Could be a defective regulator if it is not letting you lower the pressure though.

 

8

89lxcoupe

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harlan,ky

Nov 10, 2006

#8

• Nov 10, 2006

• #8

it has vaccum on it ! and it should loose it when i rev it because i have it hook to the vaccum tree !

 

S

Sicarius428

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Jan 6, 2004

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Nov 10, 2006

#9

• Nov 10, 2006

• #9

True. I have a kirban and I am able to go below 39.
Kevin

 

8

89lxcoupe

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harlan,ky

Nov 10, 2006

#10

• Nov 10, 2006

• #10

is 39 with or without the vac on it !

 

1991vert

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Feb 27, 2004

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Nov 10, 2006

#11

• Nov 10, 2006

• #11

89lxcoupe said:

is 39 with or without the vac on it !

Click to expand...

without

 

vristang

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Nov 11, 2006

#12

• Nov 11, 2006

• #12

89lxcoupe said:

it has vaccum on it ! and it should loose it when i rev it because i have it hook to the vaccum tree !

Click to expand...

Ideally the fuel pressure regulator vac source would come directly from the intake manifold.

 

G

gt90stang

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Nov 11, 2006

#13

• Nov 11, 2006

• #13

When I first put 24# injectors on mine 37# fp gave perfect Kamrfs with my Tweecer RT.

YMMV, Don

 

8

89lxcoupe

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harlan,ky

Nov 11, 2006

#14

• Nov 11, 2006

• #14

yeah i might un bolt the regulator and look at it !

 

8

89lxcoupe

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harlan,ky

Nov 20, 2006

#15

• Nov 20, 2006

• #15

well i found my problem, my return fuel line the chrome section that has quick disconnects was stopped up, i replaced it with another line and now i can adjust it anywhere i want it ! if you set it to 39 with the vac off what is your's showing with the vac on because mine is low say around 25 or so !