Electric Fuel Pumps...

Bruce Fulper · 11-11-2021, 11:11 PM

Quote:

Originally Posted by Tom Goldman

If you are running a QJet or any other non Holley OEM carb the bypass style is the way to go.

Montieth always ran his Hatari Qjet dead head. It was set up that way when I got the car so I tried and it worked flawlessly. Didn't see a reason to change. Ran at 6, 7 lbs.

Tom Goldman · 11-13-2021, 11:41 AM

Quote:

Originally Posted by Bruce Fulper

Montieth always ran his Hatari Qjet dead head. It was set up that way when I got the car so I tried and it worked flawlessly. Didn't see a reason to change. Ran at 6, 7 lbs.

Bruce ,I'm certainly not saying it hasn't been done that way successfully for years , most cars had a dead head system.
Technology and product advancements provided us with the options now available and having the return line is one of them ,especially with the newer high volume /pressure pumps that have flooded the market.

Keith 944 · 11-13-2021, 08:42 PM

Just the regular is considered dead head as the pump is not just slammed shut but returning fuel there instead of another line from up front.

Mike Rietow · 11-14-2021, 09:24 PM

Any issues using a Holley return reg with a Aeromotive 1000? I just did a pump gas Wiseco 10:1 hydraulic roller engine for a 71 split bumper I rescued, plan to hot rod it on the street. I've already run a return +Holley Blue, Is Aeromotive durable for continual use, or is a Holley blue still the standard, anyone know? I'd like to put a quiet pump on this car. Just doing research. I've got aconstant duty relay on the blue, it screams.

Adger Smith · 11-16-2021, 02:13 AM

The Holley blue regulator has a very small area. If you figure the area of the jets in your carb you need a similar or larger area in the regulator to get adequate flow. Otherwise the bowls start emptying as you go down track.
The lower float level could alter the A/F ratio.
The area also applies to Needle and seats.
2ea. .130 dia. N/S will out flow a single blue Holley regulator..
In the past when I ran Holley Blue regulators they were modified for increased flow.
If your a non believer take a blue Holley regulator apart and do some measuring.
The bypass regulator helps reduce air bubbles in the fuel and gives the carb a solid slug of fuel to get in the bowl. Most carbs don't care for air in the fuel & show it in performance.
How much HP are you making?.. HP requires LBS per Hr of fuel. Design a system that provides the correct LBS. Per Hour of fuel.

Mike Rietow · 11-17-2021, 01:02 AM

The car has a Holley return regulator. I'm wondering if this is the hot ticket with an A1000 Aeromotive fuel pump. Also wondering if an Aeromotive pump is designed for continuous duty. This is a street/strip car we plan on driving to the track in Orlando, a couple hundred miles round trip. It has a Holley Blue now, which is loud.

Ralph A Powell · 11-17-2021, 09:11 AM

As I remember the diameter of the fuel passage in the old blue Holley regulator is only .224. When I was doing some development work on the first annular 4500 hundreds the Holley engineers told us that the cross over for a second regulator was 580hp. The old blues were very smooth operating regulator’s.

11-13-2021, 08:42 PM	#3
Keith 944 VIP Member Join Date: Feb 2006 Location: Dela-where? Posts: 2,193 Likes: 1,162 Liked 1,877 Times in 577 Posts	Re: Electric Fuel Pumps... Just the regular is considered dead head as the pump is not just slammed shut but returning fuel there instead of another line from up front. __________________ KEITH MAYERS 2-1/2 X somebody Still many X nobody

11-14-2021, 09:24 PM	#4
Mike Rietow Junior Member Join Date: Apr 2017 Posts: 93 Likes: 19 Liked 30 Times in 16 Posts	Re: Electric Fuel Pumps... Any issues using a Holley return reg with a Aeromotive 1000? I just did a pump gas Wiseco 10:1 hydraulic roller engine for a 71 split bumper I rescued, plan to hot rod it on the street. I've already run a return +Holley Blue, Is Aeromotive durable for continual use, or is a Holley blue still the standard, anyone know? I'd like to put a quiet pump on this car. Just doing research. I've got aconstant duty relay on the blue, it screams. __________________ 7x S/Pro 'Sunshine" http://ottm.store https://youtu.be/I8QWEaqeFRw

11-16-2021, 02:13 AM	#5
Adger Smith VIP Member Join Date: Dec 2001 Location: Texarkana Ark/TX Posts: 2,446 Likes: 575 Liked 880 Times in 311 Posts	Re: Electric Fuel Pumps... The Holley blue regulator has a very small area. If you figure the area of the jets in your carb you need a similar or larger area in the regulator to get adequate flow. Otherwise the bowls start emptying as you go down track. The lower float level could alter the A/F ratio. The area also applies to Needle and seats. 2ea. .130 dia. N/S will out flow a single blue Holley regulator.. In the past when I ran Holley Blue regulators they were modified for increased flow. If your a non believer take a blue Holley regulator apart and do some measuring. The bypass regulator helps reduce air bubbles in the fuel and gives the carb a solid slug of fuel to get in the bowl. Most carbs don't care for air in the fuel & show it in performance. How much HP are you making?.. HP requires LBS per Hr of fuel. Design a system that provides the correct LBS. Per Hour of fuel. __________________ Adger Smith (Former SS)

11-17-2021, 01:02 AM	#6
Mike Rietow Junior Member Join Date: Apr 2017 Posts: 93 Likes: 19 Liked 30 Times in 16 Posts	Re: Electric Fuel Pumps... The car has a Holley return regulator. I'm wondering if this is the hot ticket with an A1000 Aeromotive fuel pump. Also wondering if an Aeromotive pump is designed for continuous duty. This is a street/strip car we plan on driving to the track in Orlando, a couple hundred miles round trip. It has a Holley Blue now, which is loud. __________________ 7x S/Pro 'Sunshine" http://ottm.store https://youtu.be/I8QWEaqeFRw

11-17-2021, 09:11 AM	#7
Ralph A Powell Member Join Date: Oct 2017 Location: Bay City Texas Posts: 389 Likes: 2 Liked 225 Times in 136 Posts	Re: Electric Fuel Pumps... As I remember the diameter of the fuel passage in the old blue Holley regulator is only .224. When I was doing some development work on the first annular 4500 hundreds the Holley engineers told us that the cross over for a second regulator was 580hp. The old blues were very smooth operating regulator’s.