The Ford Barn - View Single Post - Souped-up flathead problem solved

Ol' Ron · 09-18-2012, 07:27 PM

The A/F meter is an Air Fuel ratio measuring device. Cyberdyne makes an inexpensive on for about 50 bucks I use an NGK whide band unit which goes to 16:1. My buddy Richard has one that goes to 22:1. I he idea here is to lean the engine as far as you can go with out hurting it. WOT is usually in the 13's depending on the engine mods and cruise can be as high as 16:1. Doing this will keep the engine running cleaner and last longer giving more power when necessary and better fuel economy when in cruise. A good example is Richards car 3800 lb 52 HD 276, L100 cam and T-5 getting over 20 mph in normal driving. 37 Don 276 in 37 4 dr 19 mph back road trip from Ri To Lake charles and Ron H 296 3200 PU 20 MPG with C4. Tuning can be fun, but you have to work at it.

09-18-2012, 07:27 PM	#18
Ol' Ron Senior Member Join Date: May 2010 Location: Chester Vt Posts: 8,855	Re: Souped-up flathead problem solved The A/F meter is an Air Fuel ratio measuring device. Cyberdyne makes an inexpensive on for about 50 bucks I use an NGK whide band unit which goes to 16:1. My buddy Richard has one that goes to 22:1. I he idea here is to lean the engine as far as you can go with out hurting it. WOT is usually in the 13's depending on the engine mods and cruise can be as high as 16:1. Doing this will keep the engine running cleaner and last longer giving more power when necessary and better fuel economy when in cruise. A good example is Richards car 3800 lb 52 HD 276, L100 cam and T-5 getting over 20 mph in normal driving. 37 Don 276 in 37 4 dr 19 mph back road trip from Ri To Lake charles and Ron H 296 3200 PU 20 MPG with C4. Tuning can be fun, but you have to work at it.