1996 Camry 5S-FE Turbo Install

Full engine showing hi-temp wire loom

Today was spent installing a new factory fresh Toyota radiator to replace the original one since it was found to be leaking. Since the added stress of a turbo is bad enough, I don't need to increase the risk of failure with a faulty radiator! I was going to use a Fluidyne, but didn't for two reasons: 1. It was strongly suggested it will not make a difference, and 2. The price of one Fluidyne was close to two brand new Toyota radiators.

Another task today was to install a new DEI high temp wire loom purchased online from Summit Racing. This loom, or conoluted tube, is used to protect the oxygen sensor wires from the heat of the exhaust manifold, since the wires are running right above it. If you look closely at the picture above, you see the loom is close to the manifold.

A couple of problems with this setup: 1) if you're observant you also noticed that the ignition wires are parallel to the oxygen sensor wires. Good chance of interference here. 2) Sitting above the exhaust manifold will probably cause a soak-back condition where the temperature around the loom gets so hot (like parking after a hard run) that it'll be like putting the whole thing in an oven. Doesn't matter how good the loom is, it will get hot inside!

Since the wire I used to extend the senors is cheap microphone cable from Radio Shack, I hunted around for very good quality high temp shielded wire. I finally found a source for aircraft quality shielded and unshielded (for the heater wire) sold by the foot!! Their web site is:

http://www.aeroelectric.com/Catalog/BCcatalog.html

When I purchased, it was $0.45 / foot for shielded (part # S906-1-20 for 20AWG, single conductor) and $0.20 / foot for unshielded (part # M22759/16-20-9). I bought enough wire to route them behind the engine so it will not be near the high heat and will also be perpendicular to the ignition wires when they are close.