Originally posted by IRingTwyce:
Anyone remember GMs stellar V4-6-8 from the eighties?  I'm rather skeptical about displacement on demand now, mainly due to experience with the 4-6-8 in the past. They couldn't make it work right then, and I'm willing to bet that reliability and longevity are going to be sub-par this time around.
They didn't have VVT and the complex drive by wire systems. Look at the fuel injection systems of the 80's direct port EFI� Now they have fuel injection systems that inject right into the head allowing the gas to cool the combustion chamber and better use of fuel... 80's is so long in the past.
DOD is a good idea but it isnt the best idea as you are still spinning the mass of the 8 cyl engine... So it won't be as efficient as a standard 4 cyl. But I dont know many 4 cyl that get 30 mpg when they make 300+ hp either...
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2000 Grand Prix GTP (best 1/4 mile 13.87 @ 100)
1995 Contour SE (Faster than the GTP because it doesn't have a chipped piston)
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