Orma, According to the AIAA, Multipy PSI by 2.036 to obtain inches of mercury. Did you say 15 lbs of boost? YEE HAAAAA That's alot of boost. DO NOT wire the waste gate shut, as you could easily overboost the engine.
Do you have a fuel pressure regulator installed? If I remember correctly, prior to the Turbo you were on Gravity feed alone. It sounds like the engine is starving for fuel as you stated. The Turbo alone will consume fuel at a much faster rate, and you also increased the engine displacement, which again in it's self will put a greater demand for fuel. To satisfy the greater demand for fuel here are some suggestions: 1.) Re-plumb the fuel system with larger diameter fuel lines. 1/2" minium. Top off the Tank to get full head pressure. (Get Good Gas in her also) 2.) Install Dual electric fuel pumps and fuel pressure regulator(s). You will need some check valves and to run at 1 pump off of the emergency bus, while the other or primary runs from the primary electrical bus. 3.) Install a mechanical fuel pump, with an electric fuel pump as a back-up along with the required check valves, and wired off of the emergency bus. 4.) Are you utilizing a fixed pitch prop? If so you should consider replacing the fixed pitch with either a constant speed or a flight adjustable prop. 5.) The waste gate should be set to the maximum amount of boost that you will allow the engine to develop, and then open to dump the excess boost. 15 lbs of Boost is alot of boost, you should probably set the waste gate for a lower setting. If not, you could easily damage the engine. You have to be very careful about detonation and pre-ignition issues. Especially with the higher amounts of boost. I often thought of making a provision for a cockpit adjustable wastegate. I have thought otherwise however because of too great a temptation to allow more boost into the engine ( I readily admit to being addicted to "More Power"), actually too much boost into the engine. 6.) I believe Turbo City (Gardena, CA) sells a boost sensitive fuel pressure and fuel volume regulator. When the engine starts making boost, it's demand for fuel increases. The regulator senses the boost and allows the additional fuel volume and pressure. When the boost demand subsides, again the regulator senses the reduced demand and adjusts the amount of volume and pressure. This type of regulator is expensive and it takes some time and patience to set up. Orma <o...@aviation-mechanics.com> wrote: I don't know the relationship between " Hg and PSI that reads on a Boost gauge. Scott Cable KR-2S # 735 Wright City, MO s2cab...@yahoo.com --------------------------------- Do you Yahoo!? Read only the mail you want - Yahoo! Mail SpamGuard.
