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bljones Resident Wit
Joined: February 08, 2002 Posts: 2377 Location: ontario canada
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Posted: Sun Oct 23, 2005 1:18 pm Post subject: kadrons- fuel pressure regulator questions |
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I'm running a pair of kads on the stock displacement 1600, which is (finally) going into my 181, and want to add a holley fuel pressure regulator. where is the best place to locate it? i am currently running the stock ball-socket kadron linkage (yeah, i know, ditch the linkage, but it is working fine, so i am going to stick with it) which has the fuel supply line "t" fitting mounted to it. Should i eliminate the "t", bolt the regulator to the fan shroud, and run a line from the pump to the regulator, and then out to the carbs?
Of course, further to this question is another one- do i need the regulator? can i take the quick and dirty approach and simply shim the fuel pump with a couple of extra gaskets and achieve the proper pressure? _________________ OG JHC
Author of Original Rant #1
"It stingd itself to dead... now that is control on you"
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Glenn Mr. 010
Joined: December 25, 2001 Posts: 76760 Location: Sneaking up behind you
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Posted: Sun Oct 23, 2005 1:32 pm Post subject: |
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With a mechanical pump, i've not needed a regulator. _________________ Glenn
74 Beetle Specs | 74 Beetle Restoration | 2180cc Engine
"You may not get what you pay for, but you always pay for what you get"
Member #1009
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The Toolman Samba Member
Joined: July 10, 2005 Posts: 145 Location: Lake of The Ozarks
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Posted: Sun Oct 23, 2005 5:23 pm Post subject: |
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What does a stock pump on a type 1 engine usually run, pressure wise?
Ronnie _________________ "Aim Low, Reach Your Goals, Avoid Disappointment." |
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[email protected] Samba Member
Joined: August 03, 2002 Posts: 12785 Location: Salt Lake City, Utah
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Posted: Sun Oct 23, 2005 5:28 pm Post subject: |
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from 0-12psi. You don't need a regulator because if you need to drop the pressure you simply raise the pump by adding gaskets, or shortening the pushrod, until the pressure is where you want it.
the problems are often from using replacement bakelite spacers, many of which are too thin, which kicks the pressure up (I've seen 12psi). Do not assume pressure is ok "because the pump is just stock".
John
Aircooled.Net Inc. |
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clayster89 Samba Pitman
Joined: July 26, 2005 Posts: 722 Location: Trying To Baja!
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Posted: Sun Oct 23, 2005 6:18 pm Post subject: |
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No you dont need a regulator with a mechanical fuel pump but if you want an electric there great i think, i have an electric fuel pump i love it you can get them at napa auto parts but dont forget the fuel regulator my regulator was about $75 now that i have both i love it |
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Glenn Mr. 010
Joined: December 25, 2001 Posts: 76760 Location: Sneaking up behind you
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Posted: Sun Oct 23, 2005 6:28 pm Post subject: |
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clayster89 wrote: |
i have an electric fuel pump i love it |
What's so great about an electric pump? _________________ Glenn
74 Beetle Specs | 74 Beetle Restoration | 2180cc Engine
"You may not get what you pay for, but you always pay for what you get"
Member #1009
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clearsurf2001 Samba Vaccinator
Joined: February 26, 2004 Posts: 1671 Location: Dave-AKA-fortyeye-Oceanside, Ca
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Posted: Sun Oct 23, 2005 6:38 pm Post subject: |
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I'm with John on this one. Sears sells an inexpensive vacuum/pressure guage that you can plumb into your fuel line to verify what pressure you have. Many regulators are installed (if you go that route) without checking the pressure before the installation (and more importantly) after the reg is installed and "set". I've found that aftermarket regulators should be verified and that their settings should not be assumed accurate. _________________ Get ready for the injection
EverettB wrote: |
Make sure it is coherent. Rodney |
mharney wrote: |
I think Glenn has an EMPI crank in his engine. |
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[email protected] Samba Member
Joined: August 03, 2002 Posts: 12785 Location: Salt Lake City, Utah
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Posted: Sun Oct 23, 2005 7:09 pm Post subject: |
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I should add, the chrome "regulators" with the dial on them belong in the dumpster, do NOT use these POS.
John
Aircooled.Net Inc. |
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Randy in Maine Samba Member
Joined: August 03, 2003 Posts: 34890 Location: The Beach
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Posted: Sun Oct 23, 2005 7:29 pm Post subject: |
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I have never done the "gasket shim on the fuel pump thing".
Just for discussion purposes:
To go from say 5 psi to 2 psi how many would you probably need? |
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myolbug Samba Member
Joined: April 09, 2004 Posts: 776 Location: 3 feet behind my head!
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Posted: Mon Oct 24, 2005 7:47 am Post subject: |
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On AJ Sim's site; http://www.lowbugget.com/help_section.html , he recommends 1.5-2.0 psi for Kadrons
I second what John said about the chrome fuel pressure regulators. Total Garbage!!! Not worth the cost of the metal they're made from. _________________ "To my mind it is wholly irresponsible to go into the world incapable of preventing violence, injury, crime, and death. How feeble is the mindset to accept defenselessness. How unnatural. How cheap. How cowardly. How pathetic." Ted Nugent
candyman wrote: |
i broke my brain over ten years ago and its still dumb |
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RIS Samba Member
Joined: December 18, 2003 Posts: 3043 Location: Youngstown, Ohio
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Posted: Tue Oct 25, 2005 10:31 am Post subject: |
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I'll third it then, those dial regulators are simply a restriction in the fuel line. They "might" work on a stock engine, but anything else they cannot keep up with the fuel demand. _________________ Richard Sedoris - VW Performance & Machine - Youngstown, OH
http://rismachine.tumblr.com/
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Instagram: @rismachine |
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D.K Samba Member
Joined: September 27, 2005 Posts: 29 Location: MD
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Posted: Tue Oct 25, 2005 11:16 am Post subject: |
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I have a Holley fuel pressure regulator installed on my car. I used the bracket that came with it to mount the regulator on the firewall, and it also acts as the "T" fitting to supply fuel to the dual carbs. I'm also running a fuel pressure gauge to check fuel pressure. |
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[email protected] Samba Member
Joined: August 03, 2002 Posts: 12785 Location: Salt Lake City, Utah
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Posted: Tue Oct 25, 2005 11:17 am Post subject: |
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What to do is simple.
If you have a stock pump, shim to achieve desired pressure.
If you have an electric pump and NEED a regulator, use a good regulator, we stock the Holley http://www.aircooled.net/new-bin/viewproductdetail.php?keyword2=fsp0009
it's worth noting this regulator doubles as the fuel line T, with 1 inlet and 2 outlets.
John
Aircooled.Net Inc. |
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mitcharvey Samba Member
Joined: October 24, 2004 Posts: 87 Location: lompoc, cali
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Posted: Tue Oct 25, 2005 6:06 pm Post subject: |
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the reg at aircooled.net looks great but does it have too much pressure at 2-7psi? |
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The Toolman Samba Member
Joined: July 10, 2005 Posts: 145 Location: Lake of The Ozarks
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Posted: Tue Oct 25, 2005 6:21 pm Post subject: |
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John, if I order the regulator from you for my dual 35's I bought a coupla weeks ago can you set it at the low setting for me before you send it? I don't have a pressure gauge available to me down here in the Ozarks to set it to.
EDIT--By the way, can you use regular pipe thread barbed firttings for 1/4" hose in this regulator?
Ronnie, The guy that calls all the time _________________ "Aim Low, Reach Your Goals, Avoid Disappointment." |
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[email protected] Samba Member
Joined: August 03, 2002 Posts: 12785 Location: Salt Lake City, Utah
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Posted: Tue Oct 25, 2005 6:34 pm Post subject: |
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2psi is OK for K-dogs. There is no way to preset the output pressure without knowing the inlet pressure. You need a gauge to check the pressure to know IF you need a regulator, use that to set it after installation.
John
Aircooled.Net Inc. |
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