Click here to view the embedded video.
TTAC commentator educatordan writes:
Sajeev answers: I hope this isn't an exercise in mental masturbation, as I sometimes consider this quandary while exiting the freeway in my 1995 Lincoln Mark VIII LSC. That's because the Mark's air compressor refills the air springs to raise the ride height 20mm when the car goes below 45 MPH. And, compared to the low-speed ride height, they drive better (variable-assist steering too) and looked pretty cool lowered on the highway…back when they were a common sight on the highway. You may not see a new "Quadra-Lift" Jeep Grand Cherokee perform the same trick, but they do. Alrighty then! According to this thread, there can be a fuel economy benefit to a lowered vehicle. In theory. Always in theory. I like the theory of lowering a car to reduce the "frontal footprint" of your tires. Whether or not lowering the vehicle will mess up downforce to the point of fuel economy detriment is anyone's guess, unless you have a fluid dynamics lab in your garage. For the purposes of a street car that can be lowered enough to not ruin wheel alignment/suspension travel/load carrying abilities, I suspect lowering a vehicle will improve fuel economy.
Enough to matter? Maybe not with the massive frontal area of a modern passenger car with zero overhang and nerdy ride heights, but maybe with the long, bullet nose of a Lincoln Mark VIII hugging the ground. Your guess is as good as mine. Send your queries to sajeev@thetruthaboutcars.com . Spare no details and ask for a speedy resolution if you're in a hurry. from The Truth About Cars http://www.thetruthaboutcars.com | |||
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Wednesday, February 8, 2012
Piston Slap: Raising the Bar by Lowering It?
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