XJ XJ8 / XJR ( X308 ) 1997 - 2003

What is the stock fuel pressure for a 2000 XJR?

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Old Sep 9, 2013 | 07:34 PM
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Default What is the stock fuel pressure for a 2000 XJR?

I'm going to add a fuel pressure switch as a safety so my NOS does not inject in the event of a fuel pump failure.

Can anyone tell me what the stock fuel pressure is?
 
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Old Sep 9, 2013 | 07:39 PM
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About 2.8 bar over intake manifold pressure, as I recall.
 
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Old Sep 9, 2013 | 08:14 PM
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So in American,

That is approx 40.6 psi.

So if I'm running 15 psi of boost, the stock fuel system can maintain 55 psi with the stock regulator?
 
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Old Sep 10, 2013 | 01:47 AM
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Pressure in psig is correct at 40.6 As to the capability of the regulator or the pumps, I would have no clue!
 
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