Fuel Line and Pump Questions
04-05-2007, 11:00 PM
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Car: 1985 Z28
Engine: 350
Transmission: T-5 5 Spd
Axle/Gears: Built 10bolt w/3.73s
Fuel Line and Pump Questions
I'm about to bolt-on some more power to my motor via blower and cam and have a couple of questions about keeping it fed. I'm looking at about 400HP. I'm planning on using stock lines for supply return.
Will the stock line ID (5/16"?) supply enough fuel while using a mechanical fuel pump?
I'm thinking if not, I could go electric. The higher pressure output of the pump should overcome the smaller ID. I was thinking of using a Holley Blue pump. Anyone use this pump, before? How noisy is it?
Will the stock line ID (5/16"?) supply enough fuel while using a mechanical fuel pump?
I'm thinking if not, I could go electric. The higher pressure output of the pump should overcome the smaller ID. I was thinking of using a Holley Blue pump. Anyone use this pump, before? How noisy is it?
04-05-2007, 11:03 PM
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Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: Fuel Line and Pump Questions
You'll be fine with stock lines and a mechanical pump.
04-05-2007, 11:07 PM
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Car: 1985 Z28
Engine: 350
Transmission: T-5 5 Spd
Axle/Gears: Built 10bolt w/3.73s
Re: Fuel Line and Pump Questions
Good to hear. Any recommendations on mech. pump? The higher flow pumps seem to need an external regulator.
04-05-2007, 11:10 PM
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Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: Fuel Line and Pump Questions
The Carter M6900 puts out a carb friendly 6 PSI and 120 GPH free flow. It has no return, though.
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