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Originally Posted by Coupe50h
unit, The zo6 i was talking about was an 02, not a 7.0 litre like the c6, i saw it run 9.9 @ 143, yea it's modded h/c/100 shot, but on a stock bottom end!..... no nos, low 10's
believe it or not, 'mike murrillo' owns it, In that case im sure the car's ecu is tuned to the max, since he is a well known stang tuner as well.
With that said, A 351/stroker windsor could probaly turn out the same #'s with some high dollar parts?
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I don't think I ever made the case that a 351 stroker couldn't run those kinds of times when heavily modified. Ford's NASCAR engines are a variant of the 351 and they are capable of well over 750hp in non-restrictor plate form. Depending on the track weight of the Corvette, 140mph traps would certainly lead me to believe he's making 600hp at the crank. A little over 500hp from a highly modified N/A Z06 is certainly believable considering they were making over 400 prior to mods! Since it was a production car, you know the engineers spent a lot of time making sure the engine was streetable, allowing the aftermarket to benefit from concepts that already worked, but could still be refined to produce more without tremendous sacrifices. Even if it's not the 7.0L C6 engine, you're still talking about an engine that is using a design that is largely 40 years newer than the 302/351, and the 5.0 is still at a 15% displacement disadvantage assuming the 'Vette is isn't bored out. You indicated it's on the stock bottom end so I'm assuming that it isn't stroked.
The LS1's respond exceptionally to modification from all I've ever seen. The 302 has been out of production for over a decade, and the R&D aftermarket for it is not as aggressive as it once was. The 351W's market was largely based off the 302 since high performance 351Ws hadn't been produced by Ford in well, about 35 years. At 240hp, the Lightning doesn't qualify, and the torquey Cobra R used hipo SVT 302 parts to do the job.
If you need any more proof of what a little factory engineering can do, look no further than the GT-40P heads, and how they were superior to the GT-40 Irons despite not being designed for performance applications. The GT-40P heads were designed to produce good torque and pass emissions in a truck, lol.