Amazing, Chevy builds a 330 HP engine with 28mpg |
|
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG.
This site is not affiliated with Porsche in any way. Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners. |
|
Amazing, Chevy builds a 330 HP engine with 28mpg |
Hawktel |
Sep 17 2005, 10:56 PM
Post
#1
|
Senior Member Group: Members Posts: 818 Joined: 2-April 03 From: Ogden Utah Member No.: 506 |
So the new Impalla that chevy has released has a option for a 330 HP V8 with 28 highway fuel consumption.
Thats amazing. Just amazing. I wonder how far fuel efficency can be pushed? |
Rotary'14 |
Sep 19 2005, 04:04 PM
Post
#2
|
Senior Member Group: Members Posts: 753 Joined: 24-April 05 From: Los Angeles Member No.: 3,977 |
IIRC the EPA accepts data provided from the manufacturer to "vouch" for the fuel economy. It's up to the manufacturers to be ready for an audit if it ever comes.
All fuel economy tests regardless of vehicle type are done under standard conditions. The test (FTP75) is a modified version of the original test that was put together in 1975. The test was generated by data logging the driving habits of a "typical" driver in the Los Angeles area during 1970s rush hour street driving. All test are done with the A/C off, and the heater in full cool position. In the 8+ years of performing this test for manufacturers, I can tell you that small displacement engines will have a larger discrepency between EPA and real world fuel economy figures. Most people drive in the real world with the A/C on, or the windows down. The FTP75 test has a max speed that is less than 55 MPH, and on the highway version of the test the max speed is ~62 MPH. Most people nowadays don't drive this slow. I'm sure some of these factors explain the mileage discrepancy. -Rob |