Blog posts tagged with 'blue spring'

For such a cheap price and easy install, this little product is worth every penny in my experience. It increases your fuel back where it should be from the factory and holds up better with tuned engines. Most of the time you will see a 10psi increase with this blue spring kit. This keeps air out of the injectors and prolongs the life of them as well. A big benefit of the spring kit is to keep fuel pressure above 45psi at WOT. *Note that the max spec for fuel pressure is around 70-72psi. The spring will hold a more consistent pressure and will not drop off over time like the factory spring. There's really no downside to this kit and I believe its a must on any Ford 6.0L. No this upgrade does not hurt the pump.