CAMARO6 - View Single Post - Future 5th gen or 6th gen Camaro to get 440hp 5.5L V8 (from C7 Corvette)?

fielderLS3 · 06-30-2010, 03:52 PM

Why are so many assuming that a 5.5L DI engine will lose a lot of torque? I can't imagine the torque curves on the the new engine and LS3 would be that different. It is going to maintain the same basic cam in block, OHV architecture. And besides, the LS3s current 6700 redline, and peak power/torque coming at 5900/4600 isn't what I would call a low-RPM biased motor to begin with. I don't see the new engine's power and torque curves moving up the RPM band a whole lot from that.

Even if it does, there is always an easy solution to a 10% (hypothetical) torque loss: 10% shorter gearing (or in the case of the 6th gen Camaro, 10% less weight). I am confident that in the new, lighter 6th gen platform, this engine will accelerate the car better at all RPMs, so we'll be able to look at the fuel economy increase as a bonus, not a trade off.

06-30-2010, 03:52 PM	#30
fielderLS3 Drives: 2016 Mazda6, 2011 Mustang 5.0 Join Date: Mar 2010 Location: Portage, Wisconsin Posts: 4,049	Why are so many assuming that a 5.5L DI engine will lose a lot of torque? I can't imagine the torque curves on the the new engine and LS3 would be that different. It is going to maintain the same basic cam in block, OHV architecture. And besides, the LS3s current 6700 redline, and peak power/torque coming at 5900/4600 isn't what I would call a low-RPM biased motor to begin with. I don't see the new engine's power and torque curves moving up the RPM band a whole lot from that. Even if it does, there is always an easy solution to a 10% (hypothetical) torque loss: 10% shorter gearing (or in the case of the 6th gen Camaro, 10% less weight). I am confident that in the new, lighter 6th gen platform, this engine will accelerate the car better at all RPMs, so we'll be able to look at the fuel economy increase as a bonus, not a trade off. __________________ 2022 1SS 1LE (Arrived 4/29/22) "The car is the closest thing we will ever create to something that is alive." . 2022 1SS 1LE (Coming Soon)