The E85 Mystery

Originally Posted by Seb@SZ One BIG issue that doesn't come up is the fuel pressure drop associated with a stock fuel pump assembly AND keeping it returnless. Over time the

		Nissan 370Z Forum > Nissan 370Z Tech Area > Engine & Drivetrain > Forced Induction
The E85 Mystery

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06-22-2014, 09:35 PM

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Quote:

Originally Posted by Seb@SZ

One BIG issue that doesn't come up is the fuel pressure drop associated with a stock fuel pump assembly AND keeping it returnless. Over time the drop can get worse leaning out the AFRs. I HIGHLY, and I stress HIGHLY, recommend forced inducted 370Zs run a return style fuel system. From what we've gathered, fuel pressure drops become apparent near and around 450 whp.

Can't you just upgrade to a higher output pump?

Between that and bigger injectors I'm surprised there would be much drop off unless we're talking a lot of boost pressure.

What lph and injectors are the high horsepower Z's running vs. OEM specs?

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