IO-360 Heat Muff Question

[blueflyer]

I believe the Tony Bingelis books suggest putting stainless steel scrubbing pad in the heat muff to generate more heat.

[emsvitil]

Originally Posted by Darin Watson

Two in series with six rows of “fins”…about as good as it gets

What would happen if you alternated the twist of the fins?

[wirejock]

Originally Posted by SonexGuy

I used 2 of these in line and they work well. Certainly better than my few custom attempts over a couple of years. The restrictors allow you to vary air flow to find what works for your setup.

https://www.aircraftspruce.com/catal...at05-15249.php

He will custom fab the muffs. Call him.

[Northernliving]

Originally Posted by SonexGuy

I used 2 of these in line and they work well. Certainly better than my few custom attempts over a couple of years. The restrictors allow you to vary air flow to find what works for your setup.

https://www.aircraftspruce.com/catal...at05-15249.php

I have one standard heatmuff from Vans and one Turbo Heat in series. The welds on the turbo heat failed after about 2 years, and the guy who makes them (Dave Edwards in Nevada at customweldingproducts@cox.net) was very helpful at making the necessary repairs at no cost.

Some people stuff metal kitchen "scruffy pads" in the heat muffs to facilitate heat transfer, but I really like the metal tabs in one of the previous posts. My configuration is acceptable and adding the turbo heat helped, but I could definately use more.

[RV7 To Go]

Originally Posted by Craw

Good Afternoon All,
I'm currently planning on installing an IO-360-A1B6 in my RV-7A and would like to install two heat muffs. I'm wondering if anyone has already installed this configuration and has any pictures or gotchas to share based on experience.

The ideal scenario for me would be a vetterman 2-1 exhaust and 1 heat muff each side, however, I don't know if enough room exists to support this setup.

The winters in Canada are pretty cold so I think two heat muffs are a must for me (already going with heated seats).

Cheers,

I have heated seats and 2 heat muffs in my 7. It is tight for muffs but does fit. When you install the muffs hook them up in series, as has been mentioned, but also with reverse flow...meaning put the inlet at the back and the outlet closest to the cylinder, as it is the hotter end. I also wrapped the muff with 2" wide Titanium Muffler Wrap from Amaz..... It was -16C the other day and still comfortable. I would suggest a defrost fan or 2 as well. I put in 1 and wish I had done 2. The canopy sometimes fogs up a bit till I get going and get some heat in the plane. The heated seats are great, especially if you have memory foam, which is rock hard when cold.