Not wanting to discourage you or your efforts but perhaps there needs to be clarification; In this particular branch of the hobby, and typically on this forum, The pursuit of, and discussion of, liquid fueled rocketry is actively discouraged. It's not that he don't have a respect for it or those who want to step up to the challenge. It's that, by it's nature, liquid fuel systems carry a much higher inherent danger and are extremely unforgiving of error or inability. Most, though not all, of folks here have no more than the basics of physics and math backgrounds and an unformed experimenter can easily wind up maimed or killed. We, the hobby rocket community, enjoy a minimal amount or government interference because we are somewhat fanatical about self enforcement of safety. As such, for the vast majority, liquid fuel is strictly Taboo. The Reaction Research Society really is the venue for you. As an organization they have the facilities, systems and knowhow to support your endeavors to the fullest. Not to mention the community feedback you'd surely find helpful. Best of luck in your activities.