I have a list of mods below but basically this car was dyno tuned before I bought it. I have the tuner and the .LS2 files it uses. I manage a whole 12.1mpg. I know similar mods on other 5th gen Camaros garner much better mileage and still maintain power gains. It dyno'd at 445rwhp and def is a fast car but idles pretty rough (surging esp when slowing to a stop). Hardware all looks good. New plugs just to be safe since I bought it used with 19k miles on it.
Bottom line is I know something is not up to par here and there are no dyno tuners in my area at all. I am pretty computer and mechanically literate thus considering doing my own tweaking. Is this the right tuner for this? I'll list my mods and hopefully the experienced folks here can shed some light on my next step...
Thanks for any advice guys and girls!
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TDOD/AFM Delete kit and stage 2C camshaft.
Cam specs are: 224/236 .620/.620 117 LSA
CNC valve job the heads and port the intake and throttle body
CNC Ported Stage 2 GM L92 Cylinder Heads
Livernois Motorsports Dual Valve Spring Package (Livernois Motorsports Dual Valve Springs, Titanium Retainers, Valve Spring Locators, Locks, & Valve Seals)
ARP Head Bolts
MLS Head Gaskets
Hardened Pushrods
GMPP LS7 Lifters
GMPP LS2 Lifter guide kit
GMPP LS2 Valley Cover
GMPP Valve Cover Breather Block-Off
GMPP LS7 Camshaft Sprocket
GMPP Timing Chain Dampner
GMPP PCV Hose for Non-DOD applications
GMPP LS2 Lifter guide kit
GMPP Exhaust Gaskets
GMPP Timing Cover w/ Sensor
ARP Timing Chain Bolts*
Kooks Long Tube Headers and high flow mid pipes
PI 2400 Single Disc Converter