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XfireZ51 · 11-05-2012

Was your calibration modified to run 2 injectors all the time? By opening the secondaries permanently, air is moving through the secondary runner as well. I suspect there some loss of velocity thru the primary runner but primary injector is spraying fuel only into one air stream while secondary air is getting into chamber without any fuel. You're getting enough fuel but not an even mixture IMO.

11-05-2012	#6
XfireZ51 Join Date: May 2007 Location: Chicagoland, IL Posts: 9,669	Re: "Pinning" the secondaries open. Was your calibration modified to run 2 injectors all the time? By opening the secondaries permanently, air is moving through the secondary runner as well. I suspect there some loss of velocity thru the primary runner but primary injector is spraying fuel only into one air stream while secondary air is getting into chamber without any fuel. You're getting enough fuel but not an even mixture IMO. __________________ [SIGPIC][/SIGPIC]Former Membership Chairman Former ZR-1 Registry - BOD 1972 Corvette 4speed base Coupe SOLD long time ago 1984 Corvette Z-51/4+3 SOLD 1992 Corvette ZR-1 Aqua/Gray #474 SOLD 1992 Corvette ZR-1 Black Rose/Cognac #458 2014 Honda VFR Interceptor DX