Boost Referenced Fuel Pressure Regulator - Chevy Nova Forum
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Old 3rd-April-2011, 05:59 PM   #1
boosted64SS
 
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Question Boost Referenced Fuel Pressure Regulator

I've spent the winter compiling parts for my centrifugal supercharger blow thru carb project on my 64. I have most of the parts together and plan on starting the install over the next couple of weeks. I plan on posting the entire build. I have a few questions about the install but i will start with...
1. Do I need to run a "bypass style" fuel pressure regulator and return fuel line?
My current set up is a small journal 327 (30 over), forged crank (factory gm 10/10), H-beam rods (5.7sj), forged pistons (9.3-1 compression ratio), aluminum heads (70cc performer rpm), Wiend Team-G intake (port matched), roller cam (244i/260e duration 510i/535e lift), Mighty Demon 750cfm (blow thru carb), Hooker Super Comp 1 3/4 Headers, V-3 Vortech supercharger, Tial 50mm blow off valve, MSD distributor/coil, MSD 6AL+Boost Timing Master, 9"ford Rear (4.33 gear), Turbo 350 trans (3200 stall), Holley 140gph fuel pump, -8 fuel lines (no return line)
I was going to modify my current 3 port (1inlet/2outlet) billet regulator to reference boost, but, most of the boost referenced fuel regulators i see advertised are "bypass style".
Any help you guys could give would be great.
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Old 3rd-April-2011, 06:06 PM   #2
Burke

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You're pump will be happier and your fuel will run cooler with a return, but it will work fine without it.
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Old 4th-April-2011, 11:28 AM   #3
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It seems to me like you might have a couple problems on your hands. You will have to have a bypass style regulator to make the system work, I run the Aeromotive 13202 and haven't had any problems with it. I'm currently running 32 pounds of boost thru a carb. The pump is going to be the next issue, I got this off Holley's web-site, •Flows 140 GPH (free flow)
•Flows 120 GPH at 9 PSI
•Maximum pressure is 14 PSI
This is the information on your pump, I don't know how much boost your going to run but it might not be enough pressure to stay ahead. You have to figure base 7 + boost, at a rate of 1.0 to 1.0 increase. You can call Aeromotive and they will spec a system for you that will work without any headaches. Here is there number, Tech Line (913) 647-7300 Option 3
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Old 5th-April-2011, 02:52 PM   #4
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Burke thanks. Sleeper I think you just helped to confirm my original plan. Aeromotive was in the works and I got side tracked trying to save a little cash. What was I Thinking? Right now I dont plan on running more than 10lbs of boost but you know how that goes. I see your running gobs of boost! I think at low boost I might have been able to get away with my current set up. I do plan on upgrading as I learn more about tuning a boosted combination. [/IMG]
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Old 5th-April-2011, 03:04 PM   #5
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This is what I'm starting with

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Old 5th-April-2011, 03:13 PM   #6
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I help set up fuel systems at work for customers alot and I give the customer a bypass regulator 99% of the time. You get a much steadier pressure and the pump strains alot less.
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Old 6th-April-2011, 12:31 PM   #7
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My first blow thru combo was with a Procharger D-1x, I ran it at max Impeller speed and made about 20lbs on a 400. At that time I ran the Aeromotive A-2000 with the same regulator. It worked great and I didn't have any problems running out of fuel on the big end. I never had problems with the pump crusing around on the street either. Good luck with the combo, you'll love the power!
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Old 6th-April-2011, 08:22 PM   #8
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Yeah, I cant wait to get it all together! Thanks guy's for pushing my mind over the edge on this. Ordered the A2000 and the A13202 today. Cha-Ching!
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