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SVO 30's at 90%+

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Old Nov 11, 2006 | 08:42 AM
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Default SVO 30's at 90%+

Hi all, my SVO 30's are peaking over 90%. Does this seem correct for a heads and cam car at 13.0:1 AFR? I have the stock fuel system otherwise so im sure the rail pressure is a little low. does this mean its time for a new pump?
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Old Nov 11, 2006 | 08:49 AM
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Honestly I'm not surprised. My stockers were at 100% with a smaller heads and cam, and after my 42s, they still go up to about 45-50% N/A.
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Old Nov 11, 2006 | 08:50 AM
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Originally Posted by gi8e7oi825
Honestly I'm not surprised. My stockers were at 100% with a smaller heads and cam, and after my 42s, they still go up to about 45-50% N/A.
My stockers were 114%
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Old Nov 11, 2006 | 04:37 PM
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Question It means..

Originally Posted by GuitsBoy
Hi all, my SVO 30's are peaking over 90%. Does this seem correct for a heads and cam car at 13.0:1 AFR? I have the stock fuel system otherwise so im sure the rail pressure is a little low. does this mean its time for a new pump?
it's time to find out what the actual fuel pressure is, before you go throwing parts at it.
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Old Nov 11, 2006 | 04:45 PM
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mine are 78% at 415 rwhp....i'd check the pressure
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Old Nov 11, 2006 | 05:03 PM
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mine are over 95 at 5500rpm with 58PSI NA
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Old Nov 12, 2006 | 09:27 PM
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Probably a pressure drop...that's what prompted me to go to 30-lb Bosch injectors on my bolt-ons only car. I'm gonna wait on the fuel pump until I have time - I get about 52 psi or so at WOT (down from 58).
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