Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - Any 30 mpg vans you can recommend for camping?

racprops · 01-01-2021, 07:43 PM

OK your tire size is 30.46 and at 70 MPH running at 1500 RPMs your rear end is running around 2.78:1.

If I could find a list of rear end gears for that year of van with the 2.8 Diesel I could pin that down but so far they don't list that van with that engine.

Rich

PS doing some numbers I will need a minimum tire of 27.2 to reach 1683RPMs at 70 MPH.

Or consider upgrading to 265/50/20s (same 30.46 inches) and recalculating my speedo. That would give me the same final drive ratio as your van....

PPS I kind of thing the wheels are a little small and think I would like to go to 20s like they do on your model of van.

PPPS I think that the gears in your van is as low as I can hope to find.

01-01-2021, 07:43 PM	#62 (permalink)
racprops Master EcoModder Join Date: Oct 2009 Location: Phoenix AZ Posts: 790 Thanks: 4 Thanked 64 Times in 56 Posts	OK your tire size is 30.46 and at 70 MPH running at 1500 RPMs your rear end is running around 2.78:1. If I could find a list of rear end gears for that year of van with the 2.8 Diesel I could pin that down but so far they don't list that van with that engine. Rich PS doing some numbers I will need a minimum tire of 27.2 to reach 1683RPMs at 70 MPH. Or consider upgrading to 265/50/20s (same 30.46 inches) and recalculating my speedo. That would give me the same final drive ratio as your van.... PPS I kind of thing the wheels are a little small and think I would like to go to 20s like they do on your model of van. PPPS I think that the gears in your van is as low as I can hope to find. Last edited by racprops; 01-01-2021 at 08:46 PM..