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The Great C8 Roadshow

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CitizensHaveRights:
Looks like it got deleted.
Somebody claimed a car magazine sent a C8 to him for dyno testing and it put out something like 560hp/545torque, at pretty much the same RPM, as if the power fell off a cliff shortly after 5400rpm. The numbers didn't seem to make sense to me.

gryphon:
GM is claiming that preliminary C8 dyno testing is 490 HP, so the other report is over 10% higher.  Probably not 100% accurate for a stock C8.

CitizensHaveRights:
I thought advertised power was around 475-495 at the crankshaft depending on the exhaust options.
The deleted arfcom thread was talking 560 through the tires, or presumably 650+ at the crank.
Sometimes performance cars are understated, but I never heard of factory spec being that far off, not even the old L88.
https://www.corvetteactioncenter.com/specs/l88/l88engine.html

gryphon:
Absolutely.  Cars are understated for insurance purposes. That's why the HP rating measurement was changed years ago.  Prop v. crank.

smellslikemichigan:
I don't see pics either.

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