Yes you can adjust fuel pressure with this regulator. Also I fitted a modern soft seat to the carburettor to assist in shutting off the higher pressure from the pump - the original shut off is a brass tapered needle on a brass seat. Wouldn't the water still evaporate at the same temp? . Holley 12-804 1-4 Psi Carbureted Two Port Fuel Pressure Regulator: Item #: HLY12-804 : Quantity: Price: $53.99 Add to cart . Average for the last 12 months. 1996-2023, Amazon.com, Inc. or its affiliates, Select a location to see product availability, Holley HOL 12-804 12-804 Fuel Pressure Regulator. Holley Bracket Secondary Adjusting Lever Kit Steel Gold Iridited Holley 4150. #2.
fuel pressure problem - holley blue pump & reg | Hot Rod Forum Each Holley fuel pressure regulator is fully adjustable so regulating the fuel pressure to your engines needs is a simple task.
Exclusive, high-quality Global Featured Holley Transmission Kickdown Holley 12-840 HP Billet Carbureted Fuel Pressure Regulator There is no hard and fast cutoff for any of these. It was about this time that car makers lowered the compression ratios, went to long stroke motors, and developed hot spots and vaporizers on their intakes to burn the new low grade or low octane gas. I have adjusted a 6-9 lbs pump down. Holley part number for the kit is 12-807; Summit sells it for about $6. I have no idea - you are in uncharted territory. NOTE: P/Ns 12-841, 12-842, & 12-879 utilize 3/8" NPT inlets and outlets. The peak was reached in the sixties when heavily leaded gas of over 100 octane was available. Troubleshooting Carburetor Problems and Vaporlock Blues Revisited - Hagerty Lifestyle. ${cardName} not available for the seller you chose. US $57.76 Finish:Gold Zinc billet aluminum bracket that conveniently mounts a 12-803 Black anodized 12-804 or 12-803BP fuel pressure regulator utilizing the passenger side carb studs on any 4150 / 4160 style carburetor. The other possibility is that it is due to the higher pump pressure. Ships from and sold by Performance Guarantee. Posts: 32372. use a 1/16 - 1/8" restrictor in the end of your fuel line to see if you can set the pressure then. Sign up for a new account in our community. This part is legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles. ${cardName} unavailable for quantities greater than ${maxQuantity}. I do not think we hi-jacked the thread - the article is not even available anymore online to read. In the later 1960s, it was somewhat common for people who were going on vacation, in the summer, to add a gallon or two of diesel to a full tank of gasoline for their trip. Your question might be answered by sellers, manufacturers, or customers who bought this product. None of them worked. I am not going to quote all you said, but the flooding from the electric pump was caused by too much fuel pressure over coming the needle seat (or whatever kind of seat it has for the bowl) of the carburetor. To minimize exposure, avoid breathing exhaust, do not idle the engine except as necessary, service your vehicle in a well-ventilated area and wear gloves or wash your hands frequently when servicing your vehicle. Designed using state-of-the-art technology and with customers in mind. Adjustable fuel regulation from 1 to 4 psi, Holley 12-804 Reg, Fuel Press 1-4 Psi Pol. loyalty program %PDF-1.4 Its a bypass arrangement with non return valves to prevent reverse flow and is operated by a switch for use in event of vapor lock. A quart of diesel added to the gas tank solves the problem without any more in side effects than a slight smell from the exhaust. That was in the 1990s, so you can project to more current times and suspect we have something more sophisticated now. Quadrajets should have 6 to 9 at the inlet or they flood past the needle seats.
Can Boiling Point of Gas Be Raised? - Discussion Forums ***The inlet pressure limitation is 7 psi. 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. Can you adjust the fuel pressure? $5 Off Your $100 Mobile App Purchase . [endif]--> http://www.bp.com/liveassets/bp_internet/retail/retail_australia/STAGING/local_assets/downloads_pdfs/f/FN_modern_petro_vintage_engines.pdf,