Fuel pressure

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Nov 29, 2014 | 09:53 PM

#11

Truckshop

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From: Prairieville,La

Quote:

Originally Posted by ihdude

What's the easiest way to get it lower and what psi should I get it down to?

Put in a smaller fuel pump or re-plumb the fuel system.

Nov 29, 2014 | 10:11 PM

#12

03sierraslt

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From: Western PA

Aftermarket fuel pressure regulator and rails, or smaller pump.

Nov 30, 2014 | 08:20 AM

#13

ihdude

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From: Pineville, KY

If I put an adjustable fuel pressure regulator, how much fuel pressure do I set it on?

Nov 30, 2014 | 09:28 AM

#14

Truckshop

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From: Prairieville,La

45-50 at idle. 55-60 not running.

Nov 30, 2014 | 11:04 AM

#15

JohnDaMan

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From: Sumter, SC

Mine is 58 without the vac tube attached while running or 'key on engine off'

Nov 30, 2014 | 11:45 AM

#16

George C....

Formerly ScreamingL

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From: From the 412

what power are you making that you need such a large pump?

looking at the sig seems as a typical 255 would of be plenty and depending on the parts in the 408 a stocker would of kept up

ive pushed stockers well into the low 400 rwhp range and a 255 will support high 500s NA