Quote:
Originally Posted by Allch Chcar
What is groundbreaking is how the engine has a typical output with peak torque at 4k RPMs and peak power at a modest 6k RPMs. Most engines that use that high of compression either require high octane and/or extremely high cam profiles. The Prius engines use 13:1 static compression ratio but they make far less than 100BHP per liter. The drawback is that the early '12-'13 MZ3 Skyactiv without the 4-2-1 header does take a hit below 4k RPMs. The CX-5 has the Skyactiv headers while the '12-'13 MZ3 uses traditional headers.
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I remember reading about that. I assume that the 2014 has the proper Skyactiv headers, correct? I think it had something to do with how the headers wouldn't fit in the engine bay of the previous model, so hopefully Mazda fixed it, though the hp and torque figures are about the same as before, so I'm not sure.