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     1. 09:38 AM - Superior vs. Lycoming; XP-400 vs. IO-390 (Matt Dralle)
 
 
 

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Time: 
09:38:46 AM PST US
From: 
Matt Dralle <dralle@matronics.com>
Subject: 
Superior vs. Lycoming; XP-400 vs. IO-390
      
      
      
      Dear Listers,
      
      What is the common opinion of Superior XP engines vs. the typical Lycoming engine?
      
      In looking over the Superior web site, they have a new 220hp XP-400 engine designed
      around the basic IO-360 Angle Valve chassis that looks pretty nice.  At $30,000
      new, its $3-4k cheaper than the Lycoming IO-390 solutions and, if you believe
      the Superior mantra, a better designed engine in general.
      
      What is the real-world quality and reliability of Superior-built engines?
      
      Has anyone flown behind one of these new XP-400s?
      
      Has anyone Dyno'd the XP-400 to prove the 220hp claim?
      
        XP-400 Information: http://www.xp-360.com/index.asp?content=14
      
        Avweb Article: http://www.avweb.com/news/motorhead/189629-1.html?type=pf
      
      Thanks for your insight!
      
      Matt Dralle
      RV-8 # 82880
      
      








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