800 + rwhp stock LS3 short block with F1A
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The previous owner of my car had 15lbs of boost on the stock LS3 bottom end (also a 5th gen camaro). It put 850 to the rear wheels. With the restrictor in the ECS kit, I am now at 12psi and 750 RWHP. Even the 12psi makes me a bit nervous. The guys at ECS also threw a 100 shot at it and it did just over 900RWHP at 12psi. It is crazy the power these LS3's can make.
#22
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Of course I would not expect this to live for 100,000 miles given the power it is making and how the car is being used.
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Of course timing is not stupid with it, and you could get away with a lot more on either lower compression or a higher octane fuel.
All depends on cam timing with it too as far as running compression and boost together.