stock fuel pressure?
06-05-2007, 01:16 AM
#1
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stock fuel pressure? Hooked up my fuel pressure guages:
Have a strock LS6 intake with stock injectors and fuel pump.
Mechanical off the rail and electric in hte cabin and both read 60 psi. Reading is always te same and never fluctuates.
My silverado has a vaccuum line connected and increases with boost. I noticed the TA dosen't have a vaccuum line and always stays the same.
Is this normal?
Thanks
Have a strock LS6 intake with stock injectors and fuel pump.
Mechanical off the rail and electric in hte cabin and both read 60 psi. Reading is always te same and never fluctuates.
My silverado has a vaccuum line connected and increases with boost. I noticed the TA dosen't have a vaccuum line and always stays the same.
Is this normal?
Thanks
06-05-2007, 08:27 AM
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Yes. LS1's run a static 4-bar (~58psi) fuel system. In the absence of a vacuum referenced FPR, the PCM is tuned to understand how the fuel injectors will react under different manifold vacuum readings.
06-08-2007, 07:05 PM
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Originally Posted by SSpdDmon
Yes. LS1's run a static 4-bar (~58psi) fuel system. In the absence of a vacuum referenced FPR, the PCM is tuned to understand how the fuel injectors will react under different manifold vacuum readings.
06-08-2007, 07:45 PM
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Originally Posted by BLASTER
so what was the point in gettting the guage. will it ever fluxuate?
