Fuel pressure reading

  • 12 Replies
  • 2494 Views

bbfsouthwind

  • Join Date: Jun 2009
  • Location: wichita, ks
  • *
  • Sr. Member
  • ****
  • Posts: 310
  • Karma: +3/-0
    • View Profile
  • Liked:
  • Likes Given: 1
« on: June 08, 2014, 03:57:51 PM »
I am running a tunnel ram with 2 holleys and an aeromotive a2000 4 port regulator. Problem is that I have no fuel pressure ports. Can I just drill and tap one of the plugs that goes into my carb bowl?


Sent from my iPhone using SoCalJetBoats mobile app


crewchief22

  • Join Date: Apr 2007
  • Location: Mentone Beach, CA
  • *
  • Team Member
  • Informative Member
  • *******
  • Posts: 5,396
  • Karma: +66/-0
    • View Profile
  • Liked:
  • Likes Given: 193
« Reply #1 on: June 08, 2014, 04:36:59 PM »
The bowl isn't pressurized.  It needs to be inline before the inlet to the carb.
  • Boat #1: '77 Hondo Pantera GT Jet
"Racing is life!  Anything that happens before or after, is just waiting"    Steve McQueen

The problem with America is stupidity. I'm not saying there should be a capital punishment for stupidity, but why don't we just take the safety labels off of everything and let the problem solve itself?

bbfsouthwind

  • Join Date: Jun 2009
  • Location: wichita, ks
  • *
  • Sr. Member
  • ****
  • Posts: 310
  • Karma: +3/-0
    • View Profile
  • Liked:
  • Likes Given: 1
« Reply #2 on: June 08, 2014, 05:14:57 PM »
It's not in the bowl, an inlet fitting can be screwed into either side of the bowl.  It appears that fuel pressure would be present at the plug?


Sent from my iPhone using SoCalJetBoats mobile app

86caribbean

  • Join Date: Oct 2013
  • Location: Ontario Ca.
  • *
  • Sr. Member
  • ****
  • Posts: 258
  • Karma: +11/-0
  • Registered User
    • View Profile
  • Liked:
  • Likes Given: 15
« Reply #3 on: June 08, 2014, 09:13:58 PM »
Not sure if youre running -6 or -8 line, but you need to try and plumb up something where you can tee off in between the regulator and the bowl inlet with a -3 line to a fuel pressure guage and set pressure between 6 & 7 psi.
  • Boat #1: 1986 18' Caribbean

ka0tyk

  • Join Date: Aug 2010
  • Location: huntington beach, ca
  • *
  • Informative Member
  • *******
  • Posts: 3,703
  • Karma: +30/-0
    • View Profile
  • Liked:
  • Likes Given: 0
« Reply #4 on: June 08, 2014, 09:53:56 PM »
inline fitting with pressure gauge NPT hole....


Blown R/T

  • Join Date: Dec 2013
  • *
  • Full Member
  • ***
  • Posts: 235
  • Karma: +2/-0
  • Registered User
    • View Profile
  • Liked:
  • Likes Given: 0
« Reply #5 on: June 08, 2014, 09:57:54 PM »

inline fitting with pressure gauge NPT hole....


X2


Sent from my iPhone using SoCalJetBoats

berkbryan

  • Join Date: Sep 2011
  • Location: hesperia
  • *
  • Hero Member
  • *****
  • Posts: 706
  • Karma: +3/-0
    • View Profile
  • Liked:
  • Likes Given: 9
« Reply #6 on: June 09, 2014, 12:40:56 PM »
This is how I did mine using the fitting shown above

Sent from my SM-G900T using SoCal Jet Boats mobile app


bbfsouthwind

  • Join Date: Jun 2009
  • Location: wichita, ks
  • *
  • Sr. Member
  • ****
  • Posts: 310
  • Karma: +3/-0
    • View Profile
  • Liked:
  • Likes Given: 1
« Reply #7 on: June 09, 2014, 01:25:16 PM »
I can't find one in -12an


Sent from my iPhone using SoCalJetBoats mobile app

ka0tyk

  • Join Date: Aug 2010
  • Location: huntington beach, ca
  • *
  • Informative Member
  • *******
  • Posts: 3,703
  • Karma: +30/-0
    • View Profile
  • Liked:
  • Likes Given: 0
« Reply #8 on: June 09, 2014, 02:00:15 PM »
-12 to your carbs? Damn. You want the pressure gauge after the regulator so you are properly setting it right? by your pix it looks like you're pushing like a -6 or -8...
« Last Edit: June 09, 2014, 02:25:19 PM by ka0tyk »

jyeager

  • Join Date: Feb 2011
  • Location: West Covina
  • *
  • Member
  • Macho Member
  • ******
  • Posts: 2,003
  • Karma: +60/-0
    • View Profile
  • Liked:
  • Likes Given: 241
« Reply #9 on: June 09, 2014, 02:30:30 PM »
-12 is huge! i only run -10 to the regulator the -8 to the carbs.
-8 to the nitrous

That's how I did mine.


Sent from my iPhone using SoCalJetBoats mobile app
  • Boat #1: Southwind Tunnel Dragster 19
  • Boat #2: DiMarco18 V-Bottom

bbfsouthwind

  • Join Date: Jun 2009
  • Location: wichita, ks
  • *
  • Sr. Member
  • ****
  • Posts: 310
  • Karma: +3/-0
    • View Profile
  • Liked:
  • Likes Given: 1
« Reply #10 on: June 09, 2014, 08:02:32 PM »
-12 to the regulator, -6 to each bowl. I don't want some goofy ass fitting screwed onto my carb or regulator or I would have went the cookie cutter route with the union. I was wanting to do something different and it appears that it will work to me, If I can feed fuel from either side of the bowl then there is no reason that pressure should not be present at the blocked off inlet on the bowl if the other side is hooked to the regulator. Not sure why I even bothered asking!


Sent from my iPhone using SoCalJetBoats mobile app

allfiredup

  • Join Date: Nov 2012
  • Location: Vegas
  • *
  • Hero Member
  • *****
  • Posts: 629
  • Karma: +18/-0
  • Registered User
    • View Profile
  • Liked:
  • Likes Given: 2
« Reply #11 on: June 09, 2014, 08:16:38 PM »
I run -8 the whole way with the regulator mounted to the mechanical pump set at 6 psi

sent from the garage...drinkin cold ass coors light


el mojado

  • Join Date: Sep 2011
  • Location: p town
  • *
  • Hero Member
  • *****
  • Posts: 1,051
  • Karma: +14/-0
    • View Profile
  • Liked:
  • Likes Given: 7
« Reply #12 on: June 10, 2014, 11:08:59 AM »
I believe line pressure is what you want to read. Not pressure IN the bowl. Which is what you would be reading by putting a gauge where you want to. Your reading should be before it gets to the bowl but after the regulator. INLET PRESSURE. but what do I know. My .02 cents.

Sent from my SCH-I535 using SoCalJetBoats mobile app

I once tried to NOT have a good time. It just didn't work out!

 


Website Security Test
Powered by EzPortal

Website Security Test