Finally got a picture with all the pieces attached.
Went for another ride today, and am pretty sure I know why the gas mileage is sucking so bad. The temperature gauge gets to around 1/4 of the way up and doesn't get any higher! So my little viffer probably has a stuck open thermostat, will pull it and check. Even with all my hypermiling, a stuck thermostat overrides all of my opportunities to beat the NC30's gas mileage. I got 49.6, the NC30 got 53.7.
When we got back home I took some temperature measurements at the radiators after sitting for a bit. NC30 was 158F, NC21 was 122F!
Before the ride, I made a oil cooler block off panel. I wasn't able to conclusively measure oil temps, I got readings of 143F and 167F. On the NC30 I was able to measure the oil temp and it was 185F.
