Fuel line question

BoveK · 02-13-2002, 05:05 PM

I am thinking about buying a 89 4cyl coupe that was converted to a 5.0 . It has -4 fuel lines from the tank to the hard lines attached to the fuel rails. Is this big enough for a motor that will make about 300 to the wheels N/A? I will also be putting a 150 (wet system) shot of N20 on it. What is the diameter of the stock lines on a 5.0?
Thanks

BoveK · 02-14-2002, 11:46 PM

anyone??

Capri306 · 02-15-2002, 03:41 AM

I really don't think that line is going to be large enough. -4AN is only quarter of an inch I.D. Pretty close to stock Mustang fuel lines, but who wants those constricted things? Stock lines are 5/16" O.D., so who knows what the true I.D. really is. Prolly smaller than that -4 line. Figure you're going to need some serious pumpage if you wanna support that 150 wet shot, in addition to what you're going to need to satisfy 300hp. The stock fuel system can support about 250-270, but that is pushing it. IMO, you're better off to OVERbuild the fuel system the first time because 1) you never know how far your project will go or what it will need eventually, and 2) if you build it right, it will be more reliable. You may wanna check out Rudy's article, found here, under powertrain, then fuel systems, I believe. Excellent article. Hope this helps.

BoveK · 02-15-2002, 11:03 AM

Thanks Capri306. What would you recommend building my own or buying a kit such as one from aeromotive?

02-13-2002, 05:05 PM	#1
BoveK Registered Member Join Date: Feb 1999 Location: Kennesaw ,GA,USA Posts: 46	Fuel line question I am thinking about buying a 89 4cyl coupe that was converted to a 5.0 . It has -4 fuel lines from the tank to the hard lines attached to the fuel rails. Is this big enough for a motor that will make about 300 to the wheels N/A? I will also be putting a 150 (wet system) shot of N20 on it. What is the diameter of the stock lines on a 5.0? Thanks __________________ '91 Coupe In the works....FPS 331, TFS TW Heads, Vortech Intake (TEA Stage 1 port), 1.6RR, FPS Level 3 cam, Accufab 70mm TB, Pro-M 75mm Bullet, 30lb injectors, AFM powerpipe, Tremec 3550, UPR Shifter, BBK long tubes, BBK H-pipe, flowmaster 1 chambers, Fluidyne radiator, Ramchargers fan, 130A alternator, UPR upper and lower control arms, Pro-5.0 3.90 gear, 31 spline tracloc, moser 31 spline axles, TA Cover FREE $10 http://hits4pay.com/members/index.cgi?speeddemon40

02-14-2002, 11:46 PM	#2
BoveK Registered Member Join Date: Feb 1999 Location: Kennesaw ,GA,USA Posts: 46	anyone?? __________________ '91 Coupe In the works....FPS 331, TFS TW Heads, Vortech Intake (TEA Stage 1 port), 1.6RR, FPS Level 3 cam, Accufab 70mm TB, Pro-M 75mm Bullet, 30lb injectors, AFM powerpipe, Tremec 3550, UPR Shifter, BBK long tubes, BBK H-pipe, flowmaster 1 chambers, Fluidyne radiator, Ramchargers fan, 130A alternator, UPR upper and lower control arms, Pro-5.0 3.90 gear, 31 spline tracloc, moser 31 spline axles, TA Cover FREE $10 http://hits4pay.com/members/index.cgi?speeddemon40

02-15-2002, 03:41 AM	#3
Capri306 Moderator Join Date: Sep 1998 Location: Grand Rapids, Michigan, USA Posts: 1,001	I really don't think that line is going to be large enough. -4AN is only quarter of an inch I.D. Pretty close to stock Mustang fuel lines, but who wants those constricted things? Stock lines are 5/16" O.D., so who knows what the true I.D. really is. Prolly smaller than that -4 line. Figure you're going to need some serious pumpage if you wanna support that 150 wet shot, in addition to what you're going to need to satisfy 300hp. The stock fuel system can support about 250-270, but that is pushing it. IMO, you're better off to OVERbuild the fuel system the first time because 1) you never know how far your project will go or what it will need eventually, and 2) if you build it right, it will be more reliable. You may wanna check out Rudy's article, found here, under powertrain, then fuel systems, I believe. Excellent article. Hope this helps. __________________ Capri306, Moderator The Mustang Works Online 1979 Mercury Capri 1987 5.0L Mustang LX Notchback 1993 5.8L Eddie Bauer Bronco

02-15-2002, 11:03 AM	#4
BoveK Registered Member Join Date: Feb 1999 Location: Kennesaw ,GA,USA Posts: 46	Thanks Capri306. What would you recommend building my own or buying a kit such as one from aeromotive? __________________ '91 Coupe In the works....FPS 331, TFS TW Heads, Vortech Intake (TEA Stage 1 port), 1.6RR, FPS Level 3 cam, Accufab 70mm TB, Pro-M 75mm Bullet, 30lb injectors, AFM powerpipe, Tremec 3550, UPR Shifter, BBK long tubes, BBK H-pipe, flowmaster 1 chambers, Fluidyne radiator, Ramchargers fan, 130A alternator, UPR upper and lower control arms, Pro-5.0 3.90 gear, 31 spline tracloc, moser 31 spline axles, TA Cover FREE $10 http://hits4pay.com/members/index.cgi?speeddemon40

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