Sounds a bit more like my story.
I was lucky and it wasn't leaning anything out. It just enough to satisfy the engine. I still want to upgrade to bigger injectors because I don't like to push my duty cycle past 85%.
Sounds a bit more like my story.
Bumping your fuel pressure to "Extend" your range is NOT the way to achieve HP goals. It is a Band Aid at best!
By doing this you put extra strain on the pumps and they will fail faster. You are robbing Peter to pay Paul.
I recommend running lower fuel pressures and keeping the pumps happy.
Your theory on how pumps are rated is flawed. Check what psi Walbro pumps are rated at for example.You do realize the majority of fuel pumps operate on a higher pressure until they reach some type of regulator right? So the pump will put out say 60psi until it hits the regulator in the engine bay that kicks it down to whatever you have it set at.
So I dont see how running higher fuel pressure is straining the pumps. LSX motors are set at 59psi but they dont have pump failures anymore often then cobras with 39psi.
i have NEVER had a pump fail in a high pressure system (base of 60 or greater).. I have guys who have been running my tunes at 60psi for 10yrs with no issues..
as one of the posters said, GM runs there fuel systems at 60psi... just my $.02 of tuning well over 1000cars
Well then you did what I would never do over 1000 times then.i have NEVER had a pump fail in a high pressure system (base of 60 or greater).. I have guys who have been running my tunes at 60psi for 10yrs with no issues..
as one of the posters said, GM runs there fuel systems at 60psi... just my $.02 of tuning well over 1000cars
What you both are seeming to miss is that most people on here are NOT running GM stock pumps at stock flow with stock pressures. Most run Walbro pumps or something similar in design.The pumps in these output higher psi then 60 is the point I was trying to make to him. Vettes have a pressure regulator in the fuel filter that kicks it down to 60 so it obviously can't output less then that. It's not the pressure that hurts them its heat most of the time.
It's all good Bob. You are one of the FEW in this country that truly understands tuning properly. This is just one thing I do not agree 100% with. That's all.i dont think Ford got the memo either since the new coyote stuff is 55psi base fuel pressure..
Oh well, we can agree to disagree..
It's all good Bob. You are one of the FEW in this country that truly understands tuning properly. This is just one thing I do not agree 100% with. That's all.
I just like to over build and over engineer for longevity.
And it's OK to disagree. That's what makes this world go around! :beer: