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Blower Application - Fuel Pressure Reg. & Return Valve

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Old 12-16-2014, 11:49 PM
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Default Blower Application - Fuel Pressure Reg. & Return Valve

There was a discussion here not long ago about setting up the fuel system for a dual carbed blower . I think it was Mike Tkach that mentioned rigging an adjustable fuel pressure regulating valve that will return unused fuel back to the tank . Is this the fuel return check valve that was mentioned ? It can be shimmed to the correct pressure . http://www.rbssuperchargers.com/Prod...-0040&pID=9144
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Old 12-17-2014, 07:58 AM
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i can,t take credit for that but it looks like a nice deal.i don,t see why it would not work.
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Old 12-17-2014, 08:11 AM
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why not just used a regulator that uses a return ? I use a aeromotive one that is adjustable and boost referenced
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Old 12-17-2014, 08:17 AM
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Originally Posted by ezstriper
why not just used a regulator that uses a return ? I use a aeromotive one that is adjustable and boost referenced
as do i.
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Old 12-17-2014, 08:39 AM
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If that`s a -6AN line coming in then I`d say thast a bit small.
I have a -10AN into a Y then -6AN feeding each carb.

At the end there that is not the regulator we discussed, thats just a check valve.
Instead of that brass check valve you`d need a regulator and a line back to the tank.

Pretty sure that set up is for a self regulated fuel pump. They use the check valve to return any extra pressure back to the tank? weird







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Old 12-17-2014, 06:12 PM
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Ok guys , thanks .
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Old 12-17-2014, 06:19 PM
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Originally Posted by the deep
There was a discussion here not long ago about setting up the fuel system for a dual carbed blower . I think it was Mike Tkach that mentioned rigging an adjustable fuel pressure regulating valve that will return unused fuel back to the tank . Is this the fuel return check valve that was mentioned ? It can be shimmed to the correct pressure . http://www.rbssuperchargers.com/Prod...-0040&pID=9144
we used a fuel log similar to that along time ago,it used a spring and a pill(just a fuel restriction) to hold pressure and return the rest to the tank.
replaces that set up for an aeromotive regulator,same return to the tank.
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Old 12-17-2014, 06:34 PM
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Originally Posted by the deep
There was a discussion here not long ago about setting up the fuel system for a dual carbed blower . I think it was Mike Tkach that mentioned rigging an adjustable fuel pressure regulating valve that will return unused fuel back to the tank . Is this the fuel return check valve that was mentioned ? It can be shimmed to the correct pressure . http://www.rbssuperchargers.com/Prod...-0040&pID=9144
Not sure how much power you are planning to make, but the fuel pump used on the mercury 800sc/900sc, is what I've been running. Its a simple Holley 6 valve pump self regulated at 7psi. It fed the 540ci, brodix headed, solid roller cammed, 10-71 with twin 1050 dominator setup making 900+HP to 6000RPM.. No regulator or return line. Teague sells these pumps for 180 bucks.

With that being said, that same pump, with the higher pressure spring that can make 14-15psi, coupled to a return style regulator set to 7psi, is a great setup.

http://teaguecustommarine.com/em0011...fuel-pump.html

of course if you are using an electric pump, than thats a different story.

Either way, -10 line feeding the pump, -8 from pump to carb feed lines works for most anything an 8-71 can accomplish on pump gas.
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Old 12-17-2014, 06:47 PM
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Originally Posted by the deep
There was a discussion here not long ago about setting up the fuel system for a dual carbed blower . I think it was Mike Tkach that mentioned rigging an adjustable fuel pressure regulating valve that will return unused fuel back to the tank . Is this the fuel return check valve that was mentioned ? It can be shimmed to the correct pressure . http://www.rbssuperchargers.com/Prod...-0040&pID=9144

You can buy just the valve from Enderle for around $40
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Old 12-17-2014, 06:51 PM
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Gen VI block so electric pump is necessary . I won't skimp on fuel line size for sure . Thank you for your time guys .
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