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Sinister Diesel Blue Spring Kit with Adjustable Billet Spring Housing - Fuel Regulator Kit - Ford Blue Spring Kit 6.0 Powerstroke – Fast Install For 2003-2007 Ford Powerstroke 6.0L

Q: Is it kind of pointless to have this if I am putting a regulated fuel return kit on my truck?

No this is a must have for any 6.0. The stock regulator spring wears out over time, leaving you with lower fuel pressure which can be detrimental to your injectors. Running both with the regulated return kit will ensure your truck is getting adequate fuel along with fuel pressure. I have both and my 6.0 is an absolute powerhouse.

Q: Turning adjustment screw in lower psi or incresase psi?

Turning the adjuster screw in will increase the PSI. Screwing outward will decrease the psi

Q: What pressure will the blue spring achieve with out adjustment. What is the best pressure to have? is 60 the most desirable? Or can it be higher? M

If you only install a blue spring into the factory housing you ll get 45-55psi you ll want to test pressure under load aswell as idle. I suggest gillette fuel spring but but you may have to remove 1 or 2 coils. This will achieve 70-90psi or (or more Thats why you may need to remove 1 or 2 coils ) I ve had my truck at 100psi it runs like a top Quiet and more power but its harder on injector o rings once above 90psi. But if its a daily driver it ll be fine. Its when you give the orings a chance to dry out like from the truck sitting is when they tend to rupture or crack.

Q: What's the optimal pressure setting?

The factory pump setting is a constant 45 psi. I've got mine set to 55 and have no issues. If you get it too high you can blow out the seals of the injectors.

4.6/5

Product ID: 444507464

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Description

Sinister Diesel Blue Spring Kit with Adjustable Billet Spring Housing - Fuel Regulator Kit - Ford Blue Spring Kit 6.0 Powerstroke – Fast Install For 2003-2007 Ford Powerstroke 6.0L

Specifications

Body Material	Aluminum
Material Type	Aluminum
Gas Type	Diesel
Operation Mode	Mechanical
Product Grade	New
Auto Part Position	Rear
Outlet Connection Type	Barb
Inlet Connection Type	Hose Barb
Fit Type	Vehicle Specific Fit
Compatible with Vehicle Type	Truck
Outlet Connection Size	0.31 Inches
Item Weight	0.5 Pounds
Item Dimensions	9 x 5 x 4 inches

Have a Question? See What Others Asked

Is it kind of pointless to have this if I am putting a regulated fuel return kit on my truck?

Turning adjustment screw in lower psi or incresase psi?

What pressure will the blue spring achieve with out adjustment. What is the best pressure to have? is 60 the most desirable? Or can it be higher? M

What's the optimal pressure setting?

Common Questions

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€ 620.36

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

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