Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - 1955 Pontiac (advice for setting efficient but driveable mixture?)

elhigh · 03-17-2014, 02:57 PM

Those older rides are usually grandfathered out of emissions testing. I can imagine some nanny state looking over your shoulder but I don't realistically expect it, not with a '55.

The O2 sensor won't help his car but it could go a long way to helping with the tuning, hooked up to an AFR gauge on the dash or even just a handheld.

I wonder what it would take to retrofit an on-the-fly mix control like in light planes? They have to be adjustable while running to compensate for air density changes as the plane gains altitude. I know we have some light plane pilots on this forum, anyone want to weigh in on that idea?

My truck has a carb. Leaning it out for highway cruising would be pretty sweet.

03-17-2014, 02:57 PM	#13 (permalink)
elhigh Master Novice Join Date: Jan 2008 Location: SE USA - East Tennessee Posts: 2,314 Josie - '87 Toyota Pickup 90 day: 29.5 mpg (US) Felicia - '09 Toyota Prius Base 90 day: 49.47 mpg (US) Thanks: 427 Thanked 616 Times in 450 Posts	Those older rides are usually grandfathered out of emissions testing. I can imagine some nanny state looking over your shoulder but I don't realistically expect it, not with a '55. The O2 sensor won't help his car but it could go a long way to helping with the tuning, hooked up to an AFR gauge on the dash or even just a handheld. I wonder what it would take to retrofit an on-the-fly mix control like in light planes? They have to be adjustable while running to compensate for air density changes as the plane gains altitude. I know we have some light plane pilots on this forum, anyone want to weigh in on that idea? My truck has a carb. Leaning it out for highway cruising would be pretty sweet. __________________ Lead or follow. Either is fine.