Designs #36, #37, #38, #39, #40 -- These entries are quite nice. The common item we'd like to see a change is "OF WESTERN OREGON" is too small and not easily read. Design #37's checkered flag is nice, but doesn't match the character of the store. Designs #39 & #40 use stars, which we don't care for.
Design #48 & #49 -- I like the font you chose more than any other designs. Design #48 has a tach that we resembles what we think of on motorcycles. Again, we'd like a little more separation of the "OF WESTERN OREGON" text, which may be as simple as a solid black line with "OF WESTERN OREGON" in black text below the line. This may really change the design negatively; if so, then your original concept will have to work.