1963/1964 Fuel Pump PSI and Fuel Line Size - Ford Mustang Forum
 
LinkBack Thread Tools
post #1 of 4 (permalink) Old 11-16-2012 Thread Starter
Rookie
 
martjr's Avatar
 
Joined: Jun 2010
Location: West End
Posts: 8
 
1963/1964 Fuel Pump PSI and Fuel Line Size

All
I have a 1963-1965 289 HiPo motor with a Autolite 4100 600cfm carb fit into a 1966 Sunbeam Tiger. Estimated HP 271-306.

The stock 260/289 fuel lines were 5/16" and ran a SU AUF301/303 points fuel pump moving 15GPH at 2 psi max but only supported around 200hp.

I need to know how much fuel pressure and GPH I should need.

I am planning to increase fuel line size to 3/8" and would like to secure a SU Electronic pump to maintain the original look.

Thanks in advance.
Joel Martin
martjr is offline  
Sponsored Links
Advertisement
 
post #2 of 4 (permalink) Old 11-16-2012
SHELBY GT 350 Member
Classic Member
 
Ivy66GT's Avatar
 
Joined: Dec 2008
Location: Albuquerque
Posts: 6,075
 
The normal SU pumps only have 1.5-2 psi output and I wouldn't consider one for a 289. I didn't realize the Tiger used an SU. The pressure pulsation isn't so much a problem as the generally low pressure. The US factory fuel pump was 4-6 psi and the minimum output was 22.5 GPH. Ford used that spec for HiPo 289, 390, etc.

Some of the later SU's were 'high pressure' which meant 3 psi. If you need the look, one of the HP SU's would be better than what you have.

Is the SU in the engine compartment? If so, and you can hide a small 5-6 psi electric pump at the rear, you can run the rear higher pressure pump output through the SU lines and the SU will just shut off and do nothing. (I've done it, its a long story.) That would solve your delivery problem and still maintain an SU look under the bonnet. With the right switching you can maintain the SU click-click for show and when no one is looking turn on the REAL pump at the rear. (I works, I took home a trophy. )
Ivy66GT is offline  
post #3 of 4 (permalink) Old 11-16-2012
SHELBY GT 350 Member
Classic Member
 
Ivy66GT's Avatar
 
Joined: Dec 2008
Location: Albuquerque
Posts: 6,075
 
That 22.5 GPH is at an engine idle speed of 500 RPM. As a mechanical pump the output would go up as RPMs increase but its probably not a linear increase.
Ivy66GT is offline  
post #4 of 4 (permalink) Old 11-16-2012
MACH I Member
5.0L Member
 
Tominator's Avatar
 
Joined: Nov 2003
Location: Cahokia
Posts: 2,770
 
Quote:
increase fuel line size to 3/8"
Ford GT has 5/16"...nuff said...

Just get a good FP for your 289 from Summit or Jegs....easily support your HP goal.

'95 Ranger 5.0 GT40X Tri-y GT40 Intake S-Trim Snow Stage 2 Lowered Baer Racing Brakes Viper Spec Tremec w/Hurst shifter Custom Interior Dakota Digital Dash Corbeau Toplines OZ Racing AM/FM/Mp3/CD/DVD/TV.

2014 GTIG 5.0 Vert. Sil Carb Fiber dash. Bama Race Tune. Gibson axle backs. STEEDA Springs KONI STR.T Adj. Panhard
Tominator is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Ford Mustang Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a VALID email address for yourself, otherwise you will not receive the necessary confirmation email needed to confirm, validate and activate your new AFM member account.

Failure to provide a VALID email address, will result in the cancellation of your new AFM member account registration.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome


1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184