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Old 09-27-2009, 01:54 AM   #23 (permalink)
ENERGYprof
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Join Date: Aug 2009
Location: Midwest United States
Posts: 16

Little Black Peanut - '07 Toyota Prius "package 8"
90 day: 59.6 mpg (US)
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Update!

Sorry no posts for a while-- wife had a baby (girl), school started,... its been crazy. :-)

I switched over to Goodyear Assurance Fuelmax tires, which can handle 51 psi, and have them maxed.

Als I swapped out the factory springs for some Japanese aftermarket racing springs that lowered it about 2". (I 'helped' lower it by cutting the front set a little before installing them.)

I'm averaging just over 61 mpg as of this week @55 mph hwy. I've been doing a little bit better on my driving technique, but don't really think the tires did much improvement over my old bald tires. I also don't think the springs help my highway mpg, but man it corners now like a mo-fo.

I'm going to cut the boattail down a little as advised, and get rid of the straight lines. Will try to get some pics up tomorrow!

With the new low ride, I scrape my driveway every time I come in, and have enough clearance built into the tail that the addition will not, however, be joining the rest of the car in leaving scrape marks on the ground. I'll probably have to add some LEDs to the tail once its complete to make sure it is highly visible, lest I whack some unsuspecting pedestrians and bikes!
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