[VAN]

Anyone feel like the consession made to include AFM is worth it?
When your cruising around in v4 or v8 with no sc, response probably wont be up to snug with a regular stingray given the extra weight and powertrain loss. Taking the Z over stingray doesn't make much sense anywhere outside of track enviornment unless your the type that goes 10/10th on the streets.

 

[mjw930]

Anyone feel like the consession made to include AFM is worth it?
When your cruising around in v4 or v8 with no sc, response probably wont be up to snug with a regular stingray given the extra weight and powertrain loss. Taking the Z over stingray doesn't make much sense anywhere outside of track enviornment unless your the type that goes 10/10th on the streets.

It all boils down to the new CAFE standards that start to get tougher in 2015 and only get worse from there. Without these alternate modes that can be leveraged in the EPA drive loops where fuel economy is calculated there wouldn't be a 625+HP SC V8 Z06. That's the only reason they need to develop these systems. If the EPA would grant a waver to specific models based on volume, say less than 5000 units per year, then none of this would be happening but they don't so we get all the AFM and multi-mode SC's.

 

[elegant]

It is, as mjw930 has posted, not a question as to whether is is good or not. It is whether we want Corvettes to have 460 (or 625+) HP, and if we want that. -- check that, we demand that, than we are going to have to have AFM.

 

[rdslon01]

Anyone feel like the consession made to include AFM is worth it?
When your cruising around in v4 or v8 with no sc, response probably wont be up to snug with a regular stingray given the extra weight and powertrain loss. Taking the Z over stingray doesn't make much sense anywhere outside of track enviornment unless your the type that goes 10/10th on the streets.

I like the idea. Not everyone wants a sports car to go fast. Some just want it to look at.

 

[elegant]

Van has a good point here, that the LT4 not only has to be fully functional with AFM on in four cylinder mode, but also in V8 non-supercharged mode and finally in V8 boosted mode, all the while not only meeting minimum fuel economy standards but also CO2, NO2 and similar emissions requirements. One complicated set of engineering requirements, as well as not bogging when floored, being able to shift between modes "near seamlessly," etc.

 

[mjw930]

Van has a good point here, that the LT4 not only has to be fully functional with AFM on in four cylinder mode, but also in V8 non-supercharged mode and finally in V8 boosted mode, all the while not only meeting minimum fuel economy standards but also CO2, NO2 and similar emissions requirements. One complicated set of engineering requirements, as well as not bogging when floored, being able to shift between modes "near seamlessly," etc.

Which is always why I chuckle when the aftermarket touts all their performance numbers and people question why the factory options don't push as much HP as the aftermarket claims. They are simply playing by different sets of rules, warranties, etc.