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Trying to add a fuel pressure gauge.. what size is the nozzle?

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Old Nov 19, 2005 | 03:07 PM
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omnipotentgoku's Avatar
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From: El Paso, Texas
Car: 1987 IROC Z
Engine: 350 TPI L98 block
Transmission: 700R4
Trying to add a fuel pressure gauge.. what size is the nozzle?

Im trying to add an external Fuel Pres. gauge to the stock fuel rails on an 87 350 TPI. I need to know what size fitments I need for the plumbing. I have 1/8 inch fitment that just doesnt seem to cut it. Anyone know the size I should be using (what are the dimensions on the port on the fuel rails?)
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Old Nov 19, 2005 | 04:53 PM
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From: Savannah, GA
Car: 1997 Jeep Wrangler
Engine: 4.0L
Transmission: 5 speed
Axle/Gears: 8.8 rear, 4.56 gears, 4:1 transfer
The TPI fuel rail fitting is -4 AN
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Old Nov 19, 2005 | 08:34 PM
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From: Southwest Florida
Car: projects.......
AN - JIC(37 degree flare) same thing. yes, -4
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Old Oct 4, 2006 | 07:22 PM
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help

hey, i know this thread is pretty old but anyone know where i can get one of those fittings? im goin nuts tryin to find somethin that will hook up to the pressure port. i assume you guys are indeed talkin about the shraeder valve. if its a common fitting, wanna just tell me what to ask the hardware guys in a language theyll understand?
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Old Oct 5, 2006 | 05:42 AM
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From: Mobile, AL
Car: GTA
Engine: 383 HSR
Transmission: TH-700R4
Axle/Gears: 3.42
Summit racing or jegs has a great selection of automotive plumbing, tell them you need an -AN 4 fitting, and hose to match it for your gauge. The fittings themselves cost around $5-6. Hose $14 at 3ft
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