Fuel pump upgrade with pressure regulator - tune required?
08-23-2018, 01:02 PM
#1
Fuel pump upgrade with pressure regulator - tune required? I am going to be upgrading to a bigger fuel pump with an adjustable fuel pressure regulator. Since the pressure can be set to the same as it is right now, I assume that I will not need a new tune.... right?
08-23-2018, 01:50 PM
#2
TECH Senior Member
Correct. As long as the engine "sees" the same pressure as before you should be OK
08-25-2018, 03:31 PM
#4
The engine doesnt know where its fuel is coming from. As long as the system pressure is unchanged, nothing else needs to be changed. But considering you even want more fuel in the first place - obviously you have other modifications in mind - so those are gonna need to be tuned for.
08-25-2018, 04:37 PM
#6
dual Walbro 450s, delete stock regulator, aftermarket filter, return style regulator:
https://ls1tech.com/forums/fueling-i...nents-e85.html
https://ls1tech.com/forums/fueling-i...nents-e85.html
08-25-2018, 04:50 PM
#7
dual Walbro 450s, delete stock regulator, aftermarket filter, return style regulator:
https://ls1tech.com/forums/fueling-i...nents-e85.html
https://ls1tech.com/forums/fueling-i...nents-e85.html
yes it needs tuned.