Walbro 255 horsepower limits

[91nsx85crx]

Different fuel pump manufacturers seem to use different formulas in determining fuel pump requirements in turbocharged applications. I am aware that there is additional cylinder pressure that must be overcome by the fuelpump using a 1:1 fuel pressure regulator along with the extra volume needed in general. Given those factors, what is a realistic horsepower figure that a Walbro in-tank 255l pump can support. And how many of you with turbocharged engines have found that it was the limiting factor in acheiving your horsepower goals.

 

[01blacks4]

around 600 rwhp

 

[Mase]

the walbro 255 hp is good to about 700 whp.

 

[angus]

yup around there

 

[MiamieNeSeX]

700 + and still had plentty of fuel.


Armando

 

[angus]

700 + and still had plentty of fuel.


Armando

Don't forget your methanol is adding fuel!

 

[MiamieNeSeX]

Don't forget your methanol is adding fuel!

I didnt forget, we were running the 750 injectors at about 70% duty cycle.


Armando