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Discussion Starter #1 (Edited)
Tnealp

Hi everyone, I have a 408 that dynode 501 @ 5600 motor only. It runs out of fuel about 150 two 200 feet from the end of 1/4 mile. I have a holley blue on it, but I found out that it only has a 5/16 fuel pickup in the stock tank. I am adding a 1/2 line with a 1/2 pickup, and going to a procomp 140 gph 14 psi. I am leaving the stock fuel line and pickup in the tank also just to supply my nitrous system. The holley blue will be used for the nitrous only and the procomp for the engine. Is this ok, or does anybody have any other ideas.

Tony
 

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you might want to change the 5/16s pick up to something bigger (3/8s) would be ok i wouldnt run any poweradder until you get your main fuel line working. yes you could run two pumps for nitrous but it depends onhow much nitrous you going to run you said your motor makes 500 hp if you did a 125 shot the blue pump will work just fine actually it will work for a 200hp shot too. if you want to run more than that i would look at a better system. fuel cell , bigger pump, bigger fuel lines , etc.... hope this helps good luck
 

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Just do one pump that will run both systems and run #8 braided hose that way if you upgrade in the future you done have to redo everything. I found out the hard way.
Greg
 

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Discussion Starter #4
two fuel lines

Thanks for the input. Racing is like eveything esle. It has change so much since i was a teenager back in the 70's when I had my hot rod 72 rally nova. With sites like this, it takes the guest work out.

Thanks again,

tony:)
 

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Any time. I was in the process of doing two fuel systems and becides being a cleaner install it is probably cheaper. If I can help out let me know.
Greg
 

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you might check to see if the pump is overheating from deadheading, mine would get hot in staging,after upgrading to 3/8 pickup i also installed a Mallory regulator with bypass and a return line, cured my problem,
 

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Discussion Starter #7
deadheading

I think your right about deadheading. I still have the old return line from the factory that's not hooked up. Do you think that would work? I believe that should keep the pumps from loading up and running hot.

tony
 

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How much sauce?

Your plan sounds okay but may be overkill. On one hand, you want more than you need. On the other, one more thing to break/leak.
 

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Discussion Starter #9
over kill

Thanks for the input. Your proberly right about the over kill. With the nitrous, I running well over 650 hp. Just don't want to run lean at 6,000 rpms. Putting everything back together now. Had to order new tank. The old 35 year old tank had some rust problems. Hope to run Sunday. Will let everybdy know how it runs.

Tony
 

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the malloy reg w/bypass had the needed specs for the return line , im thinking 3/8, ive checked pressure wide open w/ 150 shot and pressure was steady
 

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Discussion Starter #11
fuel lines

I went ahead with the 1/2 pickup and line through a 140 gph procomp for motor and used the factory pickup with the holley blue for nitrous only but with a bypass. Two weeks ago et was 12.05. this week it was 11.91. 1/8 7.4. Getting better every week. To see a great nova mustang race go to youtube and type in tnealp2.:)

tony
 
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