TwinTurbo.NET: Nissan 300ZX forum - hobs switch to a relay is what I will be doing. setting it
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Subject hobs switch to a relay is what I will be doing. setting it
     
Posted by dfenton2 on July 31, 2017 at 2:23 PM
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In Reply To Question on running dual walbro 485's... posted by TTZPEED on July 31, 2017 at 01:26 PM
     
Message For around 20psi for the second pump to kick on.
Second pump wired right from the battery with hobhobs switch controlling the relay.
Will be the cheapest option. Unless you've already got the ash controller.
Also might want to think about using a bulk head on the top of the tank to get rid of the 5/16 fitting that is on there stock.
And upgrading to larger fuel lines.
I do not know the flow capibility of stock but for my piece of mind I have upgraded to braided stainless lines. -10 from the tank to the filter and -8 to the fuel rails then -6 as a return.

     
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