Fuel pressure and timing needed for mods?

5.0 street stanger · July 17th, 2009, 06:12 PM

I need to know what fuel pressure and timing I will need for my new setup. So the list of mods are. GT-40P heads with a 3 angle valve job, GT-40 upper and lower, and the 65mm (I believe it is 65mm) that came from the explorer, 80mm mass air, 24# fuel injectors, MSD cap and MSD blaster coil, Accell wires, Cold air intake, Summit longtube headers, H pipe, 2 1/2 dual exhaust going into two Flowmaster super 40 series mufflers, A/C delete, Electric fan, Smog pump delete. So i need to know what to set the timing at. Right now the timing is set at 14 degrees retarded. I dont have a adj. FPR right now. I planning on getting a fuel rail off an explorer or 94 up mustang cause there FPR is two bolt instead of 3 bolt like my stock on is. Reason I want to do that is because Im not using the GT-40 elbow nor am i useing the EGR plate. I made a bracket for the throttle linkage and it will work but part of the linkage hits the FPR on the 3rd bolt that sticks out towards the linkage. I dont think I will have this problem with the 2 bolt FPR. What about gapping the plugs? Stock gap? What are the best plugs to use?

1slo5.0 · July 17th, 2009, 08:47 PM

There is no magic timing and fuel pressure specs, its whatever the engine likes. I'd start with about 36lbs of fuel pressure and timing at 15-16* BTDC.

5.0 street stanger · July 19th, 2009, 06:13 PM

sweet, Ill start with that. thanks

bishop805 · July 20th, 2009, 01:30 AM

heeloo

bishop805 · July 20th, 2009, 01:30 AM

ok sorry

July 17th, 2009, 06:12 PM	#1
5.0 street stanger Regular Join Date: Oct 2006 Posts: 171	Fuel pressure and timing needed for mods? I need to know what fuel pressure and timing I will need for my new setup. So the list of mods are. GT-40P heads with a 3 angle valve job, GT-40 upper and lower, and the 65mm (I believe it is 65mm) that came from the explorer, 80mm mass air, 24# fuel injectors, MSD cap and MSD blaster coil, Accell wires, Cold air intake, Summit longtube headers, H pipe, 2 1/2 dual exhaust going into two Flowmaster super 40 series mufflers, A/C delete, Electric fan, Smog pump delete. So i need to know what to set the timing at. Right now the timing is set at 14 degrees retarded. I dont have a adj. FPR right now. I planning on getting a fuel rail off an explorer or 94 up mustang cause there FPR is two bolt instead of 3 bolt like my stock on is. Reason I want to do that is because Im not using the GT-40 elbow nor am i useing the EGR plate. I made a bracket for the throttle linkage and it will work but part of the linkage hits the FPR on the 3rd bolt that sticks out towards the linkage. I dont think I will have this problem with the 2 bolt FPR. What about gapping the plugs? Stock gap? What are the best plugs to use?

July 17th, 2009, 08:47 PM	#2
1slo5.0 Zippee is my step sister. 1990 Mustang LX 9.36@143 mph Join Date: Jan 2006 Location: Fond du Lac, Wisconsin Posts: 10,353	There is no magic timing and fuel pressure specs, its whatever the engine likes. I'd start with about 36lbs of fuel pressure and timing at 15-16* BTDC. __________________ Thanks to: Trick Flow, Team Z Motorsports, Total Engine Airflow and Furo Racecraft My daily driver has 16 cylinders and 4400hp @ 1000 rpm....

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July 19th, 2009, 06:13 PM	#3
5.0 street stanger Regular Join Date: Oct 2006 Posts: 171	sweet, Ill start with that. thanks

July 20th, 2009, 01:30 AM	#4
bishop805 Newbie 2003 mustang GT Join Date: Jul 2009 Posts: 7	heeloo

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