I've been looking for something to offer some decent heat protection under the hood for wiring. The criteria:

Some reasonable amount of heat protection.
Not outlandishly expensive.
Doesn't require removing harness to install.

One of the most promising candidates so far:
HRP World Thermal Sleeves

This stuff can be wrapped on wiring and velcro'd.

Any better ideas?

 

I was doing the same research about a week ago, and I came along this site https://www.wirecare.com/land_hitemp.asp Looks like they have some decent items, and a couple possible options

 

Looks like adequate protection.

The stuff at HRP world is still looking better to me, as it uses velcro to close rather than adhesive. Easier to move around if you don't get it right, and reusable should you need to repair/replace wiring.

 

we use the stuff that you can get from banzaitoyota, its this weird silicony tape stuff.

the selling point: thru a mistake we had the engine harness routed ON the hotside of the turbo, and the banzai wrap kept the harness intact.

 

Thermo-Tec has a new product listed on page 169 of the new Grassroots Motorsports. Not listed on the web site yet. http://www.thermotec.com/products/full/full.html

Looks good but expensive. Time or money.....

 

Something very similar here: http://www.keefeperformance.com/kpaerowrap.html

Also quite expensive.

 

Here's another site with some more reasonably priced material:
http://www.keefeperformance.com/kploom.html

This does not protect to as high a temperature, but a little easier on the wallet.

 

I need some of that for inside the car. Makes things nice and neat.

 

Here are some more options from McMaster-Carr

http://www.mcmaster.com/

Go to page 793 (enter page # in box near top left of window)

They have aluminum covered convoluted tubing. The same stuff you can buy at Radio Shack and many auto parts stores.

The claimed heat resistance is 257f. Not as good as other covers, but certainly better than stock. The claimed temperature resistance seems a little low, as other products are similar but claim higher ratings.

This stuff is about $3.00 per ft. for 3/4 inch material, quite a bit less than others.

 

I just bought a bunch of this stuff...check out the website all kinds of heat sleeving. I especially like the silicone tape I used for the engine harness over the downpipe.

http://www.competitionproducts.com/p....asp?dept=1031 Continuous temperature rating 302 degrees F.

http://www.competitionproducts.com/p...?number=203124 Capable of withstanding 1200°F continuous.

http://www.competitionproducts.com/p...?number=330004 Racer's Tape is a self emulsifying tape that provides rugged heat protection up to 450°F

 

Thanks for posting, they have some great prices.

 

I purchased two rolls of DEI Cool Tape and it was more than enough for my 87 TII. I re-wrapped my harness with new loom, vinyl tape, then put this over it. Seems to hold up nice for me.

 

88 Turbo II. Look at the hotside of the turbo. First, I have a turbo heat blanket. Then I have Thermo-tec heat tape around the engine harness near the downpipe and hotside. Then on top of the harness I have wiring loom. The loom is mostly there because the heat tape is ugly.