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  1. #1
    New Member
    Join Date
    Mar 2005
    Location
    Chantilly, VA
    Posts
    2
    Corvette(s)
    99 Coupe (sold); 09 Z51 Coupe, Procharged

    Default Injector flow rate diffs

    Does anyone know why the injector flow rates (pulled via HP Tuners) are so different between the 2009 C6 vs. the 2008 C6 and the 2009 Z06? The 2008 C6 and 2009 Z06 show (generally) 41.74 lb/hr flow, but the 2009 C6 is set to like 11-22 lb/hr (in the 128-400 kPa pressure delta range). The MAF curve is the same between the 2008 and 2009 C6... what is going on here?

  2. #2
    New Member
    Join Date
    Mar 2005
    Location
    Chantilly, VA
    Posts
    2
    Corvette(s)
    99 Coupe (sold); 09 Z51 Coupe, Procharged

    Default

    Nevermind, it's an HP Tuners problem that is addressed in the beta version.

  3. #3
    Technical Writer for Internet & Print Media
    Join Date
    Jan 2001
    Location
    Southern California
    Posts
    6,492
    Corvette(s)
    71 95 04 12

    Default

    GM is using the ECM to vary fuel pressure on the ZR-1...it has three steps. Maybe its doing that on the base C6, too.

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