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Message: [QUOTE="TARM, post: 297375, member: 578"] Well that certainly makes sense. But that is something that could be dealt with if we actually had injectors that could handle and positively use that pressure. But as its not usable all we end up with that much more shearing and aeration. I have dealt a good deal with spring manf tech from the firearms field. While springs can be made to hold a certain tension range as far as I know there is no way to eliminate the loss of tension no matter however slight it maybe that occurs with each and every compression cycle. This is why I am very interested in what kind of duty life we are looking at with these poppet springs and the rate of tension loss. The general rule of thumb we always went by was once a 10% loss in tension was reached they were considered at the end of their duty life. I won't bore you with all the techno garble of spring manf tech beyond that. So if we say either thru bench testing or thru dyno work as Charles has laid out in the linked thread and find were we are starting to have the poppet no longer sealing and say back off 100 psi how many miles roughly before we should come back and reexamine out setting? 10K 20K 50K 100K what? [/QUOTE]

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