Quote:
Originally Posted by piers.singer
Pity that you didn't reach your target, still, the potential is there. Have you considered a full or partial belly-pan? Even if it's just at the front, it might make your air dam more effective.
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yes, i think the belly pan is on the to do list.
as for why i'm 4-5 mpg lower than i was prior to the tire change/air dam mod...
I'm concerned about the existing air dam, it extends farther down than the lowest point of any of the undercarriage, and only has 4.25" ground clearance between the dam and the tarmac. so... i might have negatively added to my frontal area
Also, right before the trip, i had a tread seperation blowout with a bridgestone insignia 195/75-14 tire on the right rear. thank gawd it wasn't during the trip, but it did put me in a time pinch. i am planning on replacing the wheels/tires at a future date, so i didn't want to spend any $$ on a temporary tire. Luckily I had a spare set of oem wheels with the 215/70-14 tires. BUT i think they harmed my economy (I read the debate over wider and taller tires are better, but I'm not sold on that concept, nor do I want to debate it on this thread).
Also, the size, ran my odometer 1 1/2% slow, so i actually got 1/2 mpg better than indicated (i'll take a mpg number improvement any way i can lol)