I don't have a complete set of numbers for today. I knew I was getting tires and they were going to be one size larger than stock so I wasn't sure how long it would take me to get the SG dialed in. It turns out that I got it right on the first try. With the stock tires, I had to run +2% on speed. I now have it set to +5% and, according to Google Earth, I'm right on the money. I filled up tonight when I got back so I could see how much, if any, difference the new tires made. I got Bridgestone Insignia SE200 195/65-15 and had them mounted on a set of Sport Edition E3(?) 5-spoke rims. The drag coeficient on the new tires is in the .00765 area compared to the ~.01165 of the GY Comfortread's. Anyway, with the fill-up, I set a new personal record on a tank. 367 miles and 5.702 gallons for 64.363 MPG . The SG was only reporting 59.5 with 6.2 gallons used. I'm going to leave my tank correction at 10% for now. This means that my 82 MPG segment last night may have been closer to 85. I had an average speed of 30 mph for the tank.
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Horsepower is how hard you hit the wall, torque is how much of the wall you take with you.
2007 Prius,
Team Slow Burn
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