what is an LS1's average fuel pressure??
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exacly how it says.. id post it in fueling but noboby ever answers stuff in there.. what PSI does a LS1 system run at usually???
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Originally Posted by LostCauseZ06
what kind of pressure tester do you use??
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it's supposed to be a steady 58 psi at all times for what it's worth.
if it's dropping under load then there is a problem somewhere in the fuel system. If it reads a little high or low it's probably just the gauge you are using or a problem with the regulator built into the fuel pump unit (99+). On mine it actually reads about 60psi at all times but I think the gauge just read a little high.
if it's dropping under load then there is a problem somewhere in the fuel system. If it reads a little high or low it's probably just the gauge you are using or a problem with the regulator built into the fuel pump unit (99+). On mine it actually reads about 60psi at all times but I think the gauge just read a little high.
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Originally Posted by ArcticZ28
No matter what, you need to upgrade the injectors. I'm running 42#'s (which most people run) to give me a bit of room to play. Also should upgrade the fuel pump with a walbro 255lph or something of the likes, nothing crazy.
so if i get 42 lb injectors is it going to force me to get a tune before i start it??? will an injector change mess things up really bad??? or will it work the exact same but just be able to flow more??
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Originally Posted by LostCauseZ06
so if i get 42 lb injectors is it going to force me to get a tune before i start it??? will an injector change mess things up really bad??? or will it work the exact same but just be able to flow more??
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it's supposed to be a steady 58 psi at all times for what it's worth.
if it's dropping under load then there is a problem somewhere in the fuel system. If it reads a little high or low it's probably just the gauge you are using or a problem with the regulator built into the fuel pump unit (99+). On mine it actually reads about 60psi at all times but I think the gauge just read a little high.
if it's dropping under load then there is a problem somewhere in the fuel system. If it reads a little high or low it's probably just the gauge you are using or a problem with the regulator built into the fuel pump unit (99+). On mine it actually reads about 60psi at all times but I think the gauge just read a little high.