Technical fuel regulator?

Hi, need some help. What fuel regulator should I use for an electric pump that can put out up to 9 psi? Thanks

 

Fuel regulator huh? Must be a gas. Hehe.

 

..Need to know more about your carb situation.

 

The venerable Holley should be fine.
Holley Fuel Pressure Regulators 12-803




Part Number: HLY-12-803

 

sorry......350sbc 2 barrel. thanks for the info and replies.

 

Read the specs on the pump, it may be factory set at 7

 

I also recommend a Holley like shown above, but they come in at least two pressure ranges. You need to know what the carb needs, not so much what max the pump can put out.

 

Buy the Holley diafragham for that regulator that resists the modern gas.

 

9 psi. 350-2 barrel? Get a Carter and don’t worry about one. 5 psi and a 5/16” line.

 

Go Holley if you need one. For God's sake don't buy one of those dam rotary dial regulators.

 

Add in NOTHING made of plastic. It's not if they will ever break but when. I have to agree 100% with Jimmy Six though, why the hell spend extra money on or buy a pump that puts out that much more pressure than you actually need or want rather than the Bubba factor of saying you have that pump?

 

I use the Holley 3 port pressure regulators on everything I build whether it's an electric fuel pump, or mechanical. I use a pressure gauge also, and set mine for 5.5-6 psi output. I've seen far too many mechanical pumps that put out well over the pressure most carb needle seats can handle, and resulted in flooding carbs. There's really no reason to ever need more than 6 psi on a street carb/engine setup.

 

Something to consider. Yes the regulator can limit the pressure but can the pump handle the back pressure and the extra load created by it. You might need a regulator with a return. This can be a lot of extra plumbing and work for little gain since your setup clearly doesn't need 9 PSI. You also need to figure out a kill switch for the pump in case of a leak or accident that could allow fuel to keep pumping.

 

Thanks for all the replier. Miller

 

One too many hose barbs used in the pump kit above. No hose between the pump & carb.

 

^ Not when the pump is mounted in rubber. The hardline will hamper isolation.

 

Line loops are used for isolation, not hose.

 

^Nothing is perfect. Loops can crack from metal fatigue, caused by long term vibration

 

I’ve tried about half a dozen electric pumps and mount them all with rubber isolators on the bolts and a short bit of hose on each side. Still have noise but probably less than if it used hard line into it.

 

Malpassi Filter King. Combo filter and regulator. Well made, looks right.

 

I always use hose to isolate, or to make maintenance easier on my cars. But I keep with NHRA limits of less than 12" of hose. From frame to engine I have a short 3" piece from hard line to hard line for isolation. At my rear electric pump and fuel filter I have 4" between each so they can be maintained, or replaced easily.
Even hard loops can eventually fracture from vibration in some situations. And I really don't want coils at the fuel tank, pump and filter setup.