What return line size recommended

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Aug 14, 2011 | 05:26 PM

408ant

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From: The Village, IL

What return line size recommended

I have A lsx 406 single 106mm turbo car, Magnafuel 750 pump and regulator, -10 feed line and -10 return line 160lb injs. I'm havinng a problem with the fuel pressure not going 1 to 1. I have a 40lb pressure reading at idle and when I ran the car it only went up to 58lb at 25lbs of boost. Could that return line be an issue?? BTW im monitoring the ffuel pressure through a racepak

Aug 21, 2011 | 05:08 PM

Boosted One

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From: Cecil County, MD

You running 12v or 16v? Cable or belt drive pump?

Aug 21, 2011 | 09:52 PM

67RSCamaroVette

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From: The trailer park

Quote:

Originally Posted by 408ant

The size of the return line doesn't matter. You could theoretically take the line off and let the return dump on the ground, and it would still maintain the same pressure. I'd start with checking your vacuum/boost reference tubing.. Where are you referencing from?

Aug 22, 2011 | 05:01 AM

98Camarod

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From: Summerville, SC

^^Agreed. It should be referenced where ever you have your boost controller to.

Aug 22, 2011 | 11:32 AM