I agree, seems unlikely. I'm sure they use the same cam.
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The 2017 CVT and manual share the same intake camshaft, but they do have different exhaust camshafts. The manual exhaust cam is the same as the 2014 / 2015 exhaust camshaft.
Here is a parts list. The columns are 2014 / 2015 / 2017. From: 3A92 engine parts history (changes over the years)
http://mirageforum.com/forum/attachm...2&d=1512583762
Doax (or anyone else who knows) in the other thread, about the Cam swap..
What would make 1 exhaust cam better for economy then another and why?
I'm by far not a cam expert. But, here is what I know. The cams largely effect where the powerband of the engine is. Typically, by lowering the power band (shifting peak torque output to a lower rpm), you generally improve your fuel economy. It makes your engine breather more efficiently in the rpm band you normally cruise. However, this also typically lowers the peak horsepower output of the engine.
Fair enough, neither am i.
I wouldve have thought for the exhaust you would just want the biggest lift with longest duration reasonable. :grey:
Soooo... Googled a bit and came up with the common differences between a cam designed for auto and manual is the lobe separation. Seeing as there's 2 seperate cams, ide suspect it would be pretty hard to measure.
Hopefully one day well have some solid facts on lift and duration.
https://www.google.com/amp/s/www.hem...0.html%3famp=1
So yes to the roller cams