![]() Not bad for a low cost upgrade that can be installed in minutes!! The EightySixd spring loses about 1% to 3% of its spring tension in 1,000,000 cycles. #2 is Increased Tension Lifespan: The stock spring loses about 25% of its spring tension in 10,000 cycles.#1 is Fuel Pressure Increase: Increase your Ford Powerstroke's fuel pressure to 55-60 PSI.The EightySixd Fuel Pressure Spring differs from the stock spring in two ways: The result is a spring that will not bind in your housing and will increase your fuel pressure from 35 PSI (new factory spec) to 55-60 PSI.ĮVERY Ford 7.3L needs to have the stock fuel pressure spring changed out so choose the best spring which is the EightySixd Fuel Pressure Spring. ![]() ![]() The EightySixd fuel spring is shorter than the factory spring, but carries a higher preload on the plunger. Low fuel pressure causes rough idles, harder starting, injector failure, and loss of fuel pressure under load which can cost you MPG and HP. The factory fuel spring can result in kinking, bending, or breaking which can cause loss of tension resulting in low fuel pressure. This Fuel Pressure Spring works on 1994.5-1997 Ford Powerstroke 7.3L models. Only takes minutes to replace!! Anyone can replace it!! Save money over kits trying to sell you extra parts instead of the main product!! Performs Better than the Ford 7.3L Blue Spring Upgrade!!
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