|
I have noticed that many vehicles that have an aftermarket turbocharger installed end up getting much better mpg off boost.
The new-found torque from the back-pressure of the turbo translates to better throttle response off-boost. If the driver of the vehicle were to be driving a vehicle with cylinder de-activation (most modern V8 engines) essentially they would be driving a 4 cylinder around town and with the proper driving technique it's really not hard to see a significant increase in mpg.
As for claiming 40mpg city, if the remapped ECU or standalone engine management is tuned to run very conservative and lean off-boost you would certainly see an increase, but probably not 40 mpg for the average driver.
By average, I do mean.. typical enthusiast that can't stay off the gas pedal and resist the temptation to hear that v8 exhaust note even in stop and go traffic just for show.
With one of us eco-minded individuals driving the vehicle, we could probably get 40mpg out of it exercising our driving techniques.
Then again, a base model corvette could probably obtain significantly higher gas mileage with one of us behind the wheel anyway, with out spending $10,000 on a twin turbo kit.
__________________
|