Quote:
Originally Posted by Olds88
With a few updates the 3.9L V6 could be putting out more horsepower than the 3.6L as well as significantly more torque.
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The HV 3.9 needs to go. It's thirsty, course, and generally inefficient.
The G6 with the 3.9L and 4-Speed is rated at 15 city / 22 highway and is good for 222 HP / 238 lb-ft. The G6 with the HF 3.6L and 6-speed is rated at 17 city / 26 highway and is good for 252 HP / 251 lb-ft.
To put this in contrast, the relatively inefficient 4.6L 3-valve modular V8 that is in the Mustang yields 300 HP / 320 lb-ft. With the 5-speed auto trans, it's rated at the exact same 15 city / 22 highway as the HV 3.9L in the G6. Heck, even the L76 6.0L V8 beast in the G8 GT is rated at 15 city / 24 highway while putting out 362 HP / 391 lb-ft.
So what does the HV 3.9L get you? V8 fuel economy without V8 power and V8 noise! Doesn't sound like a good trade-off to me.