This approach is not recommended for higher compression cars made from the mid fifties onwards. I will be fitting a pressure regulator, it can only help and will have to wait for the next vapor lock to occur to see if it overcomes the flooding. They put everything they could into the coal oil including what we would consider low grade gasoline. It will meet your needs and deliver great quality at an affordable cost. It seemed to work fine for a while after I dialed it into 2psi at idle, but now it reads 6psi and it won't adjust down to 3psi. Hi Bob, I can get a hold of some 99.7% pure ethyl acetate cheap. The engine was running. ***The inlet pressure limitation is 7 psi. . What Rusty writes IS correct. CBPN804A Swinging Drawbar Pin Kit Ford NAA 501 600 700 800 900 2000 3000 4000. Holley 12-804 fuel press regulator what pressure out of box? I ordered the 12-804 regulator online because I couldn't find one locally, this is for an engine on a piece of equipment that I make my living with. I have already been thinking about switching over to a modern fuel pump, say the Mallory 110, plumbing in a regulator just downstream of the carbs, and taking the bypass fuel back to the fuel tank. Great product from holley, but these do not come with the supplied tap that's suppose to be in box for the 2 machine screws that mount the regulator to the bracket. [endif]-->. Use with standard pump only - not recommended for maximum pressure pumps. Was actually disappointed with the quality of the regulator. The BP article does not address how to re-blend your own fuel, and indeed - each batch of gasoline - and even how long it has been sitting in a tank will change it's properties as certain things evaporate out of the fuel changing it's properties if in a vented tank. finish) . Holley carburetors have powered every NASCAR(R) Sprint(R) Cup team and nearly every NHRA(R) Pro-Stock champion for four decades. Does it come with the hose fittings or to be bought separately? if you run a holley blue pump it is set at 14psi from the factory and you must run the regulator that came with the pump . The following vehicles are considered Emissions Controlled Vehicles: *Free Shipping & Handling only offered to the contiguous US on orders over $100, excludes clearance parts and oversized packages. Note also that PURE ethylene glycol is also flammable but also miscible with water. See also Tom Ogle's "modern" vapor fueling system - google it. I did, works great & looks beautiful. I feel I am 95% there, and a slight improvement would be all I need - for now, that is unless the ethanal mix changes (your tax dollars at work). Can you adjust the fuel pressure? 9517377223. But it is not the ethyl acetate alone that causes the effect to raise the vapor temperature point of fuel. Exclusive, high-quality Global Featured Holley Transmission Kickdown Cable Bracket 20-121; Gold Zinc Steel for 700R4 . Holley 12-804 Carburetor Fuel Pressure Regulator 1 To 4 PSI Bottom Is Inlet Sides Are Outlets for a sandrail, rock Crawler, KOH, Ultra4, truck, UTV, side-by-side, dune buggy, mini buggy, manx, king of the hammers, 4x4, or Jeep. From propelling the LS-, Coyote-, and Gen 3 Hemi-swap trends, to continuously innovating late-model and vintage vehicle performance, Holleys commitment to its customers and their cars is at the core of everything we do. the installation of a Holley 12-810 oil pressure safety switch is recommended for installation into the wiring circuit. Join Date: Nov 2007 Posts: 22035 Share Tweet #2 To ensure this condition, the installation of a Holley 12-810 oil pressure safety switch is recommended 3/8Inch Npt Ports 1 Inch 2 Out. To see our price, add these items to your cart. 12-804) is a Low Pressure (1-4 PSI) regulator. The 12-803 4.5-9 psi spring is plain, (just the gold colored plating) the spring is accessible and replacable The cheap dial units are terrible. I have a holley low pressure reg. I feel lucky that this did not damage my generator because at one point I saw 30lbs of pressure while trying to start the generator. It is as said - of the "paint thinner" family in weight with ehtyl acetate blended in to make it's solvency properties a little "hotter " and stronger. I commented that it was already vented by the clearance around where the float needle projects through the top but he advised that this was not enough and the vent needed to be at least a 1/4" tube and that he could see it venting vapor. As the car is parked Temperature. How to adjust Holley regulator? | Team Chevelle Each Holley fuel pressure regulator is fully adjustable so regulating the fuel pressure to your engines needs is a simple task. Holley 12-804 Holley Fuel Pressure Regulators JEGS 41040 JEGS Fuel Pressure Gauges Now you need fittings. 0 The Holley 12-840 fuel pressure regulator features 3/8" NPT in/out ports. The summer gasoline vaporizes in the line and the heat soak is quicker and longer on hot day's. What I would do, is with the car off, (or electric pump off), turn the screw a good ways out. It looks like WhatsApp is not installed on your phone. When I got it to down to 30 - then the 0-15 psi reg would not hold anymore and climbed to 15 flooding out the engine. MFG. Holley fuel pressure regulators are designed to precisely control the fuel pressure from the fuel pump to the carburetor. Holley fuel pressure regulator 12-803 instructions for a bad /189/ 03-28-2012, 03:04 AM. Holley low pressure reg woes #12-804 | The H.A.M.B. Wont be good for a finicky carb. Check the status of your Sapulpa Herald (Sapulpa, Okla.), Vol. 9, No. 74, Ed. 1 Tuesday Q: Holley's products include carburetors, fuel pumps, fuel injection, intake manifolds, and much more. Please try again. 12-804 Part Type: Fuel Pressure Regulators Product Line: Holley Fuel Pressure Regulators Summit Racing Part Number: HLY-12-804 UPC: 090127020234 Regulator Pressure (psi): 1-4 Regulator Style: Non-return Regulator Location: Inline Boost/Vacuum Reference Port: No Gauge Port: No Inlet Quantity: 1 Regulator Inlet Size: 3/8 in. Then I got this good one, to try to get 1.5 PSI to the Kadrons. I have adjusted a 6-9 lbs pump down. Holley 12-804 Fuel Pressure Regulator - amazon.ca Discussion in 'The Hokey Ass Message Board' started by oldrelics, Oct 12, 2010. Holly Fuel pressure regulator install | Jeep Enthusiast Forums Browse In Stock and Ready to Ship Alternatives, Universal Fit, 1-4 Fuel Pressure Rating (psi), Aluminum. The chemistry class experiment you are referring to will yield the approximate boiling (vapor) point at STP - Standard Temperature and Pressure ONLY. Thinking Kerosene is probably the way I will go at this point. Spring clothes pins, aluminium foil, wet burlap, etc. Worked well out of the box. Seems like the first "RFG" was closer to the old "winter" blend, which had more higher-end distillates so it'd vaporize nicely in cooler weather. Among other places on the web - you will find a fairly good dissertation of the issue at => Evergreen Performance Systems, Inc. and Hydrogen Power Central | The true source for powering engines with Hydrogen - not "HHO". Fuel pressure regulator includes mounting bracket with 2 each self-tapping screws for regulator to bracket installation purposes and 3 screws for bracket to vehicle installation.Regulator has a 3/8" NPT . What we call gasoline - as Rusty showed; is blended today - and the various chemicals blended into it for the various regions and state laws make it a special product where you BUY it. [endif]-->. HWYoF~Ta77[Z4"bG K=yK With this set up, pressures throughout system varies only very slightly from atmospheric, lower up to the vacuum tank and higher in the gravity feed from the vacuum tank to the carburettor. The BALL shuts off the fuel flow until the pressure on the other side of it lets fuel get past it to keep the pressure constant. I look upon that effort with a heavy heart though, for I have been religious about keeping the old car original as possible. Generally speaking if your car was made before 1953 it has low compression. Q: Ships from and sold by Performance Guarantee. The peak was reached in the sixties when heavily leaded gas of over 100 octane was available. At first it seemed fine, set it to 1.5 PSI and away we go. near you This product is intended only for the thinning of industrial maintenance coatings. I will be trying one of these but am curious what is the active ingredient(s). In those days before 1905 kerosene had a strong piercing odor and coal oil lamps sometimes exploded. Unfortunately, these FPR are now made in Korea and they no longer include an alternate spring. The ethyl acetate in the IMCT loosens hydrogen bonds on the gasoline making it easier to light to burn, but the "oil" - heavier hydro-carbon nature keeps the vapor point higher and flash point still low enough to give good performance. Shiny Finish. I have largely eliminated this problem with all fuel system components rebuilt, and an electric fuel pump but will get occasional stumble with a hot (after say, an hour run) engine idling or in traffic if it is say, 80 or hotter out. 2-Port Carbureted Fuel Pressure Regulator (12-804) by Holley. This is another vexing problem with Ethanol mix, which is about all you can get here in CT. It is not all the same. loyalty program The Holley 12-804 is a 1 to 4 range PSI regulator. [endif]--> http://www.bp.com/liveassets/bp_internet/retail/retail_australia/STAGING/local_assets/downloads_pdfs/f/FN_modern_petro_vintage_engines.pdf,