FWF zip ties and wire wrap.

[John Courte]

The area under the cowling seems like a hellish box of heat and wind.

Are zip ties and plastic spiral wire wrap under there OK or will they become brittle and break? Is there a special grade to use? What are best practices for securing wiring and hoses to intake tubes and engine mount?

cheers,
-John

[Jeff Vaughan]

High temp Zip ties are available and should be used.
Stein sells them as well as Mc master carr

[longranger]

I used kevlar lacing cord. (Helps to have a buddy who is an electrician for Lockheed...)

[aerhed]

The white spiral is usually polyeth. It drips pretty good when you heat it. Your gonna find everyone on here favoring a bunch of Adel clamps & judicious use of Ty=raps.

[Greg Arehart]

I've used the spiral wrap to keep wires bundled FWF, but use adel clamps and occasionally zip ties to attach things to the engine mount etc. The white stuff does get soft and deform if it's too close to a heat source.

greg

[jrs14855]

Stein did a nice article on this subject in Kitplanes recently.

[Captain Avgas]

All of my FWF zip ties are high temperature Tefzel (they're blue colour). Stein sells them. They're the go.

[Wayne Gillispie]

I used tefzel, hylar and regular ties depending on location. I also used orange silicone tape and adel clamps. Any material closer than 4-5" from exhaust should be protected. Local airflow will affect material temps. Don't forget cowl heat shield. My alternator surface temp exceeded 300F due to cyl #1 exhaust pipe radiant heat. I will be installing a shield here. I have temp labels on everything including brake calipers. The real test will be this summer. Some spiral wrap 4" away from exh started melting near cowl outlet. This is during 30-50F surface temps in phase 1.

[PCHunt]

What is a Temp Label? I can picture something that changes color with temp, and you can read it later

Part numbers and sources appreciated!

[Lars]

Originally Posted by Captain Avgas

All of my FWF zip ties are high temperature Tefzel (they're blue colour). Stein sells them. They're the go.

Not only that, Stein's are competitively priced. I tried sourcing them elsewhere since we buy them by the truckload where I work. Not enough savings, and too large a minimum order, to make it worth the bother.