Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - A.M.E.C. Economy Run II

blownb310 · 10-13-2008, 11:28 PM

This event was a big success and full results are HERE.

Here's the rest of the story on how I prepared my car for this event.

The big engine comes out, the little one goes in....

After bolting it all together, I fine tuned it with an Innovate LM1 wide band oxygen sensor setup. After rejetting the stock Hitachi carburetor for between 14.6 and 15.0 to 1 A/F ratio, I took the car out on a 64 mile test loop the afternoon before the big event. I topped up the fuel tank to the rim and then carefully drove a 64 mile loop. I refilled the tank [right to the rim again] and it took 1.1 gallons of gas. I was very happy to have gotten 56 mpg in this initial test! B210's sit quite high off of the ground and this brings a poor drag coefficient, so I went home that night and tried to help the poor aerodynamics. I added a makeshift front chin spoiler, clear plexiglass headlight covers, and blocked off half of the grill to reduce wind drag.

The next I morning I competed in the A.M.E.C. Economy Run event and carefully drove the 118.7 mile distance. During the post event refill it took only 1.91 gallons of fuel. This equates to 61.53 miles per gallon!

I think we have a new record for the Datsun B210/B310 chassis folks.

This was not my absolute best attempt at fuel mileage for these cars. I would have needed much more time to prepare. There are many other things I can and will try in the future but I don't want to do this with my B210 though. My plan is to take this to the next level with my '81 210 sedan instead. Then I will get into lowering the car for aerodynamics and such.

Mike

10-13-2008, 11:28 PM	#14 (permalink)
blownb310 Master EcoModder Join Date: Jul 2008 Location: Albany, NY Posts: 476 Saab EV - '19 Chevy Bolt EV LT Pierre - '07 ZENN MC2 Base Thanks: 178 Thanked 89 Times in 45 Posts	This event was a big success and full results are HERE. Here's the rest of the story on how I prepared my car for this event. The big engine comes out, the little one goes in.... After bolting it all together, I fine tuned it with an Innovate LM1 wide band oxygen sensor setup. After rejetting the stock Hitachi carburetor for between 14.6 and 15.0 to 1 A/F ratio, I took the car out on a 64 mile test loop the afternoon before the big event. I topped up the fuel tank to the rim and then carefully drove a 64 mile loop. I refilled the tank [right to the rim again] and it took 1.1 gallons of gas. I was very happy to have gotten 56 mpg in this initial test! B210's sit quite high off of the ground and this brings a poor drag coefficient, so I went home that night and tried to help the poor aerodynamics. I added a makeshift front chin spoiler, clear plexiglass headlight covers, and blocked off half of the grill to reduce wind drag. The next I morning I competed in the A.M.E.C. Economy Run event and carefully drove the 118.7 mile distance. During the post event refill it took only 1.91 gallons of fuel. This equates to 61.53 miles per gallon! I think we have a new record for the Datsun B210/B310 chassis folks. This was not my absolute best attempt at fuel mileage for these cars. I would have needed much more time to prepare. There are many other things I can and will try in the future but I don't want to do this with my B210 though. My plan is to take this to the next level with my '81 210 sedan instead. Then I will get into lowering the car for aerodynamics and such. Mike __________________ 2007 ZENN and 2019 Chevy Bolt EV 145,000 oil free miles to date.