Quote:
Originally Posted by Atomic Ed
Hang on. I'll have some added information on tuning your fuel system after I confirm some things on the dyno.
Your programed (desired) fuel pressure for the LPFP on a SS is 42 psi, not 72 psi like the article leads you to believe. 72 psi is the set point for a high flow condition. The LPFP on the ZL1 pump in my SS dead heads at 75 psi and the stock setting for a ZL1 pump is 51 psi.
Also, the HPFP is mechanically limited at around 2400 psi, not 2150 (at least on mine). 2150 psi is the electronically controlled max stock SS setting.
These settings are all changeable with HPtuners.
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True! I'll add that without making changes to the desired setting can cause other problems. I was running my aux pump activation too soon (3 pounds of boost) and it would set a check engine light for fuel pressure above desired perimeter.