holly electric fuel pump - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum



Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Hotrodding Basics
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 11-23-2012, 07:22 PM
Registered User
 
Last photo:
Join Date: May 2012
Posts: 289
Wiki Edits: 0

Thanks: 5
Thanked 5 Times in 5 Posts
holly electric fuel pump

Hey guys

I think im going to run a electric pump on my sbc build instead of a mechanical because of clearance issues. My question is do I need to or should I run the oil pressure saftey switch. ?? Unless anyone knows of an aftermarket mechanical that will fit. I tried putting a holly mechanical on it a while back and the body of the pump hit on the motor mount.

Holley Performance Products 110 GPH "Blue" Electric Fuel Pump With Regulator*12-802-1

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 11-23-2012, 07:39 PM
Richiehd's Avatar
JS-70
 
Last photo:
Join Date: Jun 2011
Location: Jupiter FL
Posts: 834
Wiki Edits: 0

Thanks: 147
Thanked 55 Times in 48 Posts
I run the same pump, separate switch so it doesnt have to run with key on. Set regulater 5-6 lbs if you are running a Holley 4 BBL
And mount the pump near the tank.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 11-23-2012, 08:01 PM
Registered User
 
Last photo:
Join Date: May 2012
Posts: 289
Wiki Edits: 0

Thanks: 5
Thanked 5 Times in 5 Posts
Thanks Richiehd. Just so im clear. You have yours wired on a toggle switch and as long as the pressure is regulated to 6-7 psi it wont push fuel past the needle valves in the carb? no issue having the pump in the on postion with the car not running for a minute or two?? What is the pupose of the saftey switch?? incase you lose oil pressure for some reason to avoid harming your motor?? or have a needle valve fail while the car is running and catching on fire??
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 11-23-2012, 08:08 PM
Registered User
 
Last photo:
Join Date: May 2012
Posts: 289
Wiki Edits: 0

Thanks: 5
Thanked 5 Times in 5 Posts
Also. Do I need to run a relay??
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 11-23-2012, 08:30 PM
gearheadslife's Avatar
MentalMuffinMan
 
Last photo:
Join Date: Nov 2012
Posts: 2,157
Wiki Edits: 0

Thanks: 94
Thanked 268 Times in 250 Posts
relay , yes..

the oil psi switch is so it's not pumping fuel if the engines off, like in a wreck you'd want the pump to stop pumping fuel incase there is a leak
also the fuel COOLS the pump. if it's on and the fuel isn't flowing, it'll heat the fuel and kill the pump
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 11-23-2012, 08:46 PM
Registered User
 
Join Date: Jun 2006
Location: Indiana
Posts: 24
Wiki Edits: 0

Thanks: 0
Thanked 4 Times in 3 Posts
I currently run a mechanical pump but I once owned a 91 T-Bird with an electric pump. It had a relay in the trunk which would trip off if jolted, like in a collision (or even throwing something against it accidentally - don't ask). It was easily reset with a push button. I assume they're quite common in production cars. I always thought it would be a good idea were I ever to run an electric pump and I bet you could pick one up dirt cheap in a junkyard.
Reply With Quote Quick reply to this message
  #7 (permalink)  
Old 11-23-2012, 09:09 PM
cobalt327's Avatar
WFO
 
Last wiki edit: Intake manifold
Last journal entry: 1980 Malibu Wagon
Last photo:
Join Date: Mar 2009
Location: Atlanta
Age: 59
Posts: 5,037
Wiki Edits: 1616

Thanks: 128
Thanked 597 Times in 546 Posts
IIRC that's a fuel pump inertia switch.
Reply With Quote Quick reply to this message
  #8 (permalink)  
Old 11-23-2012, 09:48 PM
lg1969's Avatar
Google "Tunnel Ram 406"
 
Last photo:
Join Date: Oct 2007
Location: Bohemia, L.I.N.Y.
Age: 64
Posts: 1,054
Wiki Edits: 0

Thanks: 1
Thanked 21 Times in 18 Posts
I do not trust Holley fuel pump. They have habit of leaking. The fuel pump are very noisy, too. I prefer the Carter electric fuel pump. They are very quiet and totally sealed.
Reply With Quote Quick reply to this message
  #9 (permalink)  
Old 11-24-2012, 12:16 AM
Registered User
 
Last photo:
Join Date: May 2012
Posts: 289
Wiki Edits: 0

Thanks: 5
Thanked 5 Times in 5 Posts
hmmmm. I think i would perfer to run a mechanical pump. Does anybody know of an aftermarket brand that will fit my application. its a mid 70's block with the clamshell type mounts. I tried a holley a while ago and the body of the pump hit on the motor mount. I saw a post a while ago regarding the same thing and a guy posted a pic of the same application but an edelbrock pump that he had mounted. Maybe ill pick up an edelbrock and try it. Anyone know if the body of the edelbrock is smaller than the holley??
Reply With Quote Quick reply to this message
  #10 (permalink)  
Old 11-24-2012, 05:11 AM
Registered User
 
Last photo:
Join Date: Jan 2011
Location: Hopewell, Va
Age: 62
Posts: 1,186
Wiki Edits: 0

Thanks: 0
Thanked 117 Times in 113 Posts
holly electric fuel pump

What kind of car is this in? What part of the pump hit on the motor mount. The body has screws in it so that it rotates the inlet and outlet from contacting anything. Most all the mechanical pumps are the same size.
Reply With Quote Quick reply to this message
  #11 (permalink)  
Old 11-24-2012, 05:40 AM
Irelands child's Avatar
Registered User
 
Last wiki edit: Ford engine specifications Last photo:
Join Date: Jan 2005
Location: Upstate New York
Posts: 4,903
Wiki Edits: 8

Thanks: 13
Thanked 200 Times in 181 Posts
If there is any way to figure out how to mount a mech. pump, do it. If not - there ARE better choices then a rattlin', failure prone Holley. Additionally, they too van be a PITA to find a mounting place and still be safe.

Yes, you should run a fail safe switch with any electric pump
__________________
Irelands child
Reply With Quote Quick reply to this message
  #12 (permalink)  
Old 11-24-2012, 07:36 AM
F-BIRD'88's Avatar
Yada Yada Yada
 
Last photo:
Join Date: Oct 2005
Location: Ontario, Canada
Posts: 9,734
Wiki Edits: 0

Thanks: 3
Thanked 346 Times in 343 Posts
The carter electric fuel pumps are much more reliable for street street strip use ..
The holleys and most aftermarket pumps are not intended to full time use.
Yup they soon start leaking or quit. If you ever took one apart you'd see why.

You can use a Ford fuel pump upset cut off switch and or a oil pressure Hobs switch for safely.
Yes the pump best wired thru a solenoid and must be fuse protected (inline fuse)..
Carter P4594 7psi
carter P4070 5-6psi no regulator is required. 3/8" fuel line. The 1/4 inch NPT fittings use common 3/8" barb fuel fittings. All you need is a common in line 3/8" paper fuel filter. Very quite when properly rubber mounted.
Avoid sharp 90 elbow fittings. Check inside diameter of all fittings 1/4" minimum.

Carter P4601 high pressure race Use a regulator.

Last edited by F-BIRD'88; 11-24-2012 at 07:45 AM.
Reply With Quote Quick reply to this message
  #13 (permalink)  
Old 11-24-2012, 07:41 AM
F-BIRD'88's Avatar
Yada Yada Yada
 
Last photo:
Join Date: Oct 2005
Location: Ontario, Canada
Posts: 9,734
Wiki Edits: 0

Thanks: 3
Thanked 346 Times in 343 Posts
If you need more WOT fuel flow than 1 carter pump will supply, use two , thru two 3/8" fuel lines.
They are rated @ 72GPH free flow. They flow around 40 some odd GPH at the working pressure,
EG: when the motor is WOT and fuel is flowing thru the system . I Flow tested them once but forget the actual WOT flow spec. Its enough to feed a 500hp motor @ WOT.

You'll often see many old school real fast powerfull race cars at the track with two parallel carter electric fuel pumps, with parallel plumbing. (usually twin 3/8")
Why? because the Carter electric fuel pumps don't crap out or leak. Trouble free reliable fuel system.
It is very uncommon for these electric fuel pumps to fail. Use a fuel filter before the pump.

Last edited by F-BIRD'88; 11-24-2012 at 07:51 AM.
Reply With Quote Quick reply to this message
  #14 (permalink)  
Old 11-24-2012, 07:41 AM
Registered User
 
Last photo:
Join Date: Feb 2011
Location: Huntingtown, Md.
Posts: 45
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Holley blue electric fuel pump

Put same pump on me 30 foot boat with a 454 Chevy. ....warmed up did a full tilt...boat fell on it's face = ran out of fuel.
Yes, it was 2 inches below tank and 12" away.
Installed a Carter like ones I used in the drag race days, 1957 to 1969.....not problems.
You must locate electric pumps with in 2 feet of tank & at same level or lower than tank.
Use #14 AWG conductor. Run a #14 dedicated ground to battery...not the frame or floor board.
Yes on the oil pressure safety switch with a 30 amp relay.
If a toggle switch is used be certain it will carry the load 15 amps.
Jim, School of Hot Rod Hard Knocks, 1957
Reply With Quote Quick reply to this message
  #15 (permalink)  
Old 11-24-2012, 07:43 AM
Registered User
 
Last photo:
Join Date: Feb 2011
Location: Huntingtown, Md.
Posts: 45
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Holley blue pump.

I am not a fan of electric pumps if OEM mechanical pump will work.
Application = street rod.
Reply With Quote Quick reply to this message

Recent Hotrodding Basics posts with photos

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
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.
Email Address:

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.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

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 On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Electric fuel pump, fan and water pump Curtis Thornton Electrical 9 05-08-2011 01:41 PM
electric fuel pump btheburke General Rodding Tech 12 04-30-2008 08:40 PM
Electric fuel pump to manual pump engine.. RookieRodder Hotrodding Basics 7 02-14-2008 05:28 PM
Fuel Pump Not Sending Gas To Carb Why?? Its Not Electric Fuel Pump???? zeeman19 Engine 7 02-13-2007 03:17 PM
Electric fuel pump gto401 Electrical 2 07-05-2004 07:00 AM


All times are GMT -6. The time now is 06:21 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.