MTFCA Forum

Neat.
We don't have the luxury of room on our T's, one has to contend with the steering,

Great job Steve!

I recently removed my air filter and re-installed the stock heat pipe for winter driving, but I'll be putting the air filter back on come spring.

I found a vintage Clinton lawn mower filter on Ebay, painted it black, and made an adapter cone out of brass to attach it to the carb inlet.

Do you folks running filters find that the intake manifold beyond the carb gets really cold? I have a filter but currently run a heat pipe. I'd like to try it but have concerns about carburetor ice.

Tim, you are on to something overlooked in all the above filters.

The most important part of that original pipe is not clean air, it is hot air.

Hot air is required to prevent the center area of that carburetor icing up from the venturi effect for using the air input to suck gas out of the carb bowl.

A carb can ice up on a damp day with the temperature as low as 55 degrees or less.

I have not encountered icing (yet), but I definitely get condensation on the intake manifold when I run the filter.

So far I haven't been bothered by carburetor ice. I wonder if the combination of warm air from the radiator and engine pans keeping out a lot of the cold air would be the reason. Of course, I'm too much of a sissy to do much cold weather driving anyway.

Carburetor ice is most likely to be severe between 50° and 70° F when the humidity is above 60%. Airplanes have a control that lets you bypass the filter and duct hot air into the carb when that happens. I've experienced icing a number of times over the years usually in the spring or fall.

If you do it right you can have both hot and clean air.

Very nice Steve, Thank you.

What does the air filter help with? Fewer oil changes, less wear?

Hopefully less wear. I have also noticed slightly more power on climbs (seat of the pants, no hard data) due to the cooler intake charge.

I personally would not extend the oil change interval just because I was running a filter.

I've found this kit from Lang's works just fine. It contact the hogs head so you get some heat. I still get a little condensation on humid days, but no icing. https://www.modeltford.com/item/CARB-FILT.aspx

Just wanted to warn Dennis on that clear glass fuel filter, you might want to use something else. I had one on my 68 Cougar and the O rings began to leak and caught my engine on fire. Luckily, I had a halon extinguisher handy and put it out. Just melted some wires. Swapped out that filter pronto.

Steve,
you inspired me to sort a 'been meaning to' job.
My '26 Coupe has a Vaporizer so a different design.
I bought a dirt-bike angled filter for about $6 and I also did a bit of sheet metal work.
The tricky bit is a 'dent' on the engine side so that the choke control can operate.
No mods to the car. Doesn't seem to get hot next to the vap.