Fuel pressure?
Have an account? Register

Forgot your password?

Forgot your username?

 
Likes Likes:  0
+ Reply to Thread
Page 1 of 4 1 2 3 ... LastLast
Results 1 to 10 of 39

Thread: Fuel pressure?

  1. #1
    Rods 'n' Sods Junkie
    Join Date
    Jul 2012
    Location
    isle of man
    Posts
    247
    Images
    8
    Post Thanks / Like
    ganzaigeorge is offline

    Fuel pressure?

    hi got a new Edelbrock performer 600 carb on an Offenhauser manifold,sitting on top of a 302 small block,fed by Holley electric fuel pump.What should a reasonable fuel pressure be?

  2. Remove Advertisements
    RodsnSods.co.uk
    Advertisements
     

  3. #2
    Administrator blackpopracing's Avatar
    Join Date
    Apr 2009
    Location
    Slough
    Posts
    8,783
    Images
    1757
    Post Thanks / Like
    blackpopracing is offline
    I believe it should be about 3psi at the carb? will probably need regulating down.

  4. #3
    Official RnS Addict 35kid's Avatar
    Join Date
    Apr 2009
    Location
    up north
    Posts
    1,987
    Images
    3
    Post Thanks / Like
    35kid is offline
    edelbrock performer 600 should be no more than 6psi at idle

  5. Remove Advertisements
    RodsnSods.co.uk
    Advertisements
     

  6. #4
    Rods 'n' Sods Junkie
    Join Date
    Jul 2012
    Location
    isle of man
    Posts
    247
    Images
    8
    Post Thanks / Like
    ganzaigeorge is offline
    Thanks for that.Anyone have any more suggestions?I did once hear that pressure should nt be more than 6 psi? the reason I need to know is that at full throttle motor is missing,like a plugs breaking down,but not quite like that,its hard to explain....feels like a fuel problem,as if carb is like flooding?Can this happen if pressure is too high?It starts/ticks over nicely and at low revs runs great,but floor it and it misses................................cleaned pump out and it has new plugs,Mallory dizzy electronic and Accel coil.......any ideas?

  7. #5
    Rods 'n' Sods Junkie
    Join Date
    Feb 2010
    Location
    london
    Posts
    458
    Images
    0
    Post Thanks / Like
    zephyrc is offline
    What holley pump,, red blue or black..fuel pressure should not be over 6psi,, prefer 5psi... Red pump doesn't need a regulator,, blue and black both need regulators,,holley 803 reg works well...

  8. #6
    Rods 'n' Sods Junkie
    Join Date
    Feb 2010
    Location
    london
    Posts
    458
    Images
    0
    Post Thanks / Like
    zephyrc is offline
    Is problem as you hit the throttle or under sustained throttle

  9. #7
    Rods 'n' Sods Junkie
    Join Date
    Jul 2012
    Location
    isle of man
    Posts
    247
    Images
    8
    Post Thanks / Like
    ganzaigeorge is offline
    I think its a blue pump and I think that problem is at sustained throttle in that it picks up instantly but keeping throttle pedal down it starts to "miss".If you drive as per normal traffic,sedately there dos nt seem to be a problem. Im draggin at easter so need to sort it out.

  10. #8
    Rods 'n' Sods Junkie
    Join Date
    Feb 2010
    Location
    london
    Posts
    458
    Images
    0
    Post Thanks / Like
    zephyrc is offline
    If its the blue pump are you using the regulator with it..

  11. #9
    Official RnS Addict
    Join Date
    May 2011
    Location
    Hertfordshire
    Posts
    2,499
    Images
    7
    Post Thanks / Like
    Adam Sayers is offline
    6 but an Edelbrock can take up to 7 where a Holley likes 5-1/2 to 6.

    Quick tip. If your using a liquid filled fuel pressure gauge have it cold or use a non liquid one to set. In higher temps the gauge can read 7 when it's actually 2 or 3 due to the liquid in the gauge giving a false reason due to ambient temps.
    1955-56-57 Chevy new and used parts always available from www.randrhotrodimports.co.uk who I'm proud to have sponsor my '57 Chevy race car. 9.3 @ 155.8 mph / 0-60 = 1.47 seconds! Street legal :-)

  12. #10
    Rods 'n' Sods Junkie
    Join Date
    Jul 2012
    Location
    isle of man
    Posts
    247
    Images
    8
    Post Thanks / Like
    ganzaigeorge is offline
    Unfortunately I don t have a regulator fitted,so Ill order one now and then see what happens............thanks for replies everyone

+ Reply to Thread
Page 1 of 4 1 2 3 ... LastLast

Quick Reply Quick Reply

Register Now

Please enter the name by which you would like to log-in and be known on this site.

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

Please enter a valid email address for yourself.

Where you live, Town\City\County etc.

Please enter your full name
This field cannot be edited once it has been completed other than via contacting the site admin. Please make sure the information is correct first time.

Log-in

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

    Similar Threads

    1. Fuel pressure gauge
      By kapri in forum Tech Discussion
      Replies: 7
      Last Post: 06-08-2010, 22:40
    2. two petrol pumps and two fuel pressure regulators
      By ACEBOPPER in forum Tech Discussion
      Replies: 0
      Last Post: 07-06-2010, 15:38
    3. 1970's Stewart Warner fuel pressure gauge
      By Blue in forum Stuff - FOR SALE
      Replies: 2
      Last Post: 18-12-2009, 18:18
    4. Fuel pressure regulator
      By vince-305 in forum Tech Discussion
      Replies: 2
      Last Post: 23-10-2009, 17:59
    5. Fuel pressure/mixture adjustment?
      By English Impala in forum Tech Discussion
      Replies: 18
      Last Post: 29-04-2009, 12:44

    Bookmarks

    Posting Permissions

    • You may post new threads
    • You may post replies
    • You may not post attachments
    • You may not edit your posts
    •