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Message: [QUOTE="Strictly Diesel, post: 446905, member: 1411"] You're operating under the assumption that the poppet seals perfectly against the bowl and doesn't leak. As was already covered, under normal light throttle driving the poppet will be open and returning fuel in excess of that needed to maintain your pressure setpoint to the tank. Good chance most of the fuel will be returning to the tank in this situation because the amount required to run really light throttle is pretty minimal. Without a gauge, how do you know if you have any pressure drop? The blue spring is a bandaid at best, I've seen trucks with pressure drop problems after doing the blue spring. Anyone that has ever seen a pressure drop on a gauge has seen a "lack of PSI" to all of the injectors, not just rear ones. As someone said, there are a lot of ways to skin this cat...if your setup is working for you...that's great. It's certainly light years ahead of stock (helper pump, air removal, increased pressure on stock poppet and higher flowing banjos)...but it doesn't flow what a full RR kit will. I'm not here to convince you to change, if you're happy with what you've got than stick with it. I just wanted to clarify for people reading that there is a difference for sure, and there are valid reasons for doing the full RR setup. [/QUOTE]

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