Originally Posted by
hustler316
Ok I see we are on the same page. I was just trying to clarify as not everyone that reads the boards has a deep understanging of the fuel system on this platform.
Yes sir, we are on the same page.
Originally Posted by
hustler316
I personally like the walbro pump over the sl55, it is capable of slightly higher volumes.
I don't remember if the walbro was on the radar back when I had the SL55 installed. I know two other members had installed the SL55 before me with favorable results. My results showed an improvement but it did not fix the issue.
Originally Posted by
hustler316
I'm still not sold in having to add an external regulator, as the fuel volume is regulated by fuel line diamater. The factory fuel line diamater is capible of flowing more liters per minute than this engine could ever use. Adding more pressure to increase volume is not a good idea, keep in mind that injectors are designed to operate at certain pressures, increasing those pressures only leads to bad things.
I considered the external regulator but came to the same conclusion as you. Especially since I was already taxing the stock injectors, adding more pressure was not ideal in my mind either.
Originally Posted by
hustler316
A pump that is capable of maintaining 55ish psi is the most important thing, for this to happen a high volume pump is needed. Any extra fuel that is not used will be returned back to the tank via the filter. To summarize: First try a high volume, high pressure pump, if that doesn't solve the problem then increase injector size. Agreed?
I agree 100%.