Does this mean you have to turn the aux pump on at 500rpm and leave it on full time? Or does the FPR regulate with out the aux pump on?

 

actually...i seen his map.....he has it come on at 3600rpm and 3psi. I thinking of going to a smaller washer in the FMU so it doesnt run at as high of pres. Need to find some one that knows about this stuff . With the 550 injectors he is still running the same FMU rise rate of 8 to1 . I need to know if that can be reduced to 6 to1...4 to1...2 to1 .If I cant reduce it there is no need to go to such a big of an injector .

 

What are the stock injectors?

 

Oh...on the vacuum side...it all...9.1.....thats all the lower he had to go

 

270's.....280's no bigger

 

Booger - I can ask these questions for you and see what kind of response I get. FYI we tried one run without the aux pump on just to see what happens and let me be the first to say it was not pretty. Perhaps with the larger tank pump we could have gotten away with it, who knows.

 

I would really like to run with less fuel preasure . At 8 to1 rising rate and 12bl's of boost . The FMU is putting upwards of 140psi to the fuel rail . I dont know what the top psi of the aux. fuel pump is . Does any one know ? But I know with 510 or 550 injectors we wouldnt need that high of psi to get enough fuel