VVT vs VCT on the New Generation HEMI

Discussion of the 5.7L-6.1L-6.4L HEMIs.

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scottm
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VVT vs VCT on the New Generation HEMI

Post by scottm »

Re: the 2009 5.7L HEMI that's coming in the Dodge Ram trucks.
The PR says variable valve timing (VVT) but I have read people
calling it variable cam timing (VCT). I have some more details.

The new generation HEMI employs cam phasers -- thus it is VCT.
They chose to use VVT in their various marketing dialogs in order
for more mass appeal, since VVT is more widely known than VCT.

Can you deploy VVT without VCT? I don't know. But it does seem
logical that you cannot use VCT without it causing a VVT result. :)

As far as other 2009 vehicles, the only marketing slicks I found so
far are for the new Challenger. While it does not mention VVT, it
does have more power and fuel efficiency in the 5.7 than what we
have in the LX cars for 2008. I can only assume this means it gets
the VVT HEMI -- thus perhaps the entire 2009 HEMI line will, too!
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