It's been a while since my last post about our "LSR Urban Concept Car" (if LSR and Urban Concept go together?) - here an update. Yesterday we spent the day at the PACCAR Test Center in Mt. Vernon (see an aerial view at
http://www.paccar.com/company/PTC_open_house.asp ) After switching back to the higher speed rated Pirelli Diabolo 100/80-16 tires (from the Michelin low resistance tires we used in Houston) we ran 2 tests
- First a 6 miles fuel efficiency, that's 4 laps on the banked oval, using pump mineral diesel then repeat the same session with B20 biodiesel; best result overall with the B20 was 159ml/6miles = ~142 MPG.
- Second we did the 2/10 mile acceleration test which we will repeat at World of Speed running a best of 28:92 seconds, again with the B20 (and we removed the muffler
) now with some lengthy math, since all Elapsed Time calculators only give me the 1/4 mile, I got 24.896 mph. Can someone please verify or help with a formula. I will have the students figure it out tomorrow too.
Additionally we tuffed the current car body to get some aero flow feedback. We did not finish the longtail LSR body in time to test. Stay tuned for the 35mph photo on the banked oval (no at that speed it is not self steering)
all in all a great day for 5 students and us adults - glad one of them had the 24 Le Mans live on his mobile phone !