DEI "Radiator Relief" and "heat shield" material for the harness?

[landcruiser3DP]

i was going to get some of this heat shield material

Heat Shroud™

Fire Wrap 3000™

and the guy at DEI said they have this "Radiator Relief" stuff

Radiator Relief™

i was planning on just going with the 1" diameter heat shroud (the fire wrap seems more heavy duty). but wondering if picking up some of this radiator relief is a good idea (or bunk).

THANKS

jon

 

[Rifleman]

I think a little more information will be needed in order to answer your questions. What are you planing to wrap with that heat wrap, the reason i ask, there are many different types of heat wrap available, but their use is depended on application. As for the radiator relief, that looks like water wetter by a different name. WaterWetter®

 

[landcruiser3DP]

I think a little more information will be needed in order to answer your questions. What are you planing to wrap with that heat wrap, the reason i ask, there are many different types of heat wrap available, but their use is depended on application. As for the radiator relief, that looks like water wetter by a different name. WaterWetter®

thanks man. i guess i was just going to wrap that part of the harness up by the heater control valve that i am reading sometimes slackens and rests on the heat shroud or whatever i call that business bolted to the engine. i’m hearing it can sometimes get degraded or even melt? but if there are other spots i guess i would wrap those too.

is there any concensus on water wetter? i mean if you could keep the radiator temps down it seems like it could be worth it. but i don’t know if it is just snake oil...
THANKS

 

[jjdeneen918]

I instantly thought “snake oil” myself, but that may just be the skeptic in me.

I’ve never used the stuff, so I really have no idea...

 

[Rifleman]

is there any concensus on water wetter? i mean if you could keep the radiator temps down it seems like it could be worth it. but i don’t know if it is just snake oil...

Water wetter agents use a Surfactant, Surfactant are compounds that lower the surface tension between two liquids, between a gas and a liquid, or between a liquid and a solid.

Using this stuff in your cooling system you should achieve a higher degree of surface area contact between the coolant in your cooling system, and all the surfaces it comes in contact with.

So with more surface area contact, that should allow more heat to be transferred away from the engine and into to the coolant. Along with that you should also get better heat transfer from the coolant to the radiator.

The only customers i had who used this stuff were people who used it in their race cars, and they were never driven on the street.

Plus if i remember right, this stuff actually gets the best results when used with just plane water, without any antifreeze. Not running any antifreeze in a street engine to get the best results from this type of product is not something I'd recommend. YMMV

 

[landcruiser3DP]

Water wetter agents use a Surfactant, Surfactant are compounds that lower the surface tension between two liquids, between a gas and a liquid, or between a liquid and a solid.

Using this stuff in your cooling system you should achieve a higher degree of surface area contact between the coolant in your cooling system, and all the surfaces it comes in contact with.

So with more surface area contact, that should allow more heat to be transferred away from the engine and into to the coolant. Along with that you should also get better heat transfer from the coolant to the radiator.

The only customers i had who used this stuff were people who used it in their race cars, and they were never driven on the street.

Plus if i remember right, this stuff actually gets the best results when used with just plane water, without any antifreeze. Not running any antifreeze in a street engine to get the best results from this type of product is not something I'd recommend. YMMV

thanks for knocking that down. i appreciate it.

so any opinion on these two. supposedly the fire wrap 3000 i similarly for race cars and such so i assume i don't need it. but figured to post up since i like to do things once and do them right...

Heat Shroud™

Fire Wrap 3000™

 

[Rifleman]

It should work, just make sure what you order is large enough to fit all the way around the wiring harness. I did something a little different to protect the harness on my truck. I made a form fitted heat shield out of high temp silicone rubber supported by an Aluminum frame that is sandwiched in between the EGR tube and the harness. With that heat shield in place there is no way for that EGR tube to melt a hole in my harness.

 

[madisonr34]

I bought the DEI C4 Corvette EGR heat shield, it works for the 1fzfe egr pipe as well. Just use some steel zip ties.

 

[Heckraiser]

I have used the shiny silver stuff on my intercooler pipes. Not sure what it did for heat reduction, but it didn't burn up, so that's a start. I also wrapped my wiring harness on the firewall and other various bits and bobs in heat wrap. Had a close call with the wiring harness, which nearly melted through due to a hot downpipe.

As for water wetter, are you having trouble keeping your truck cool? If so, you probably have a maintenance issue. Radiator, fan clutch, etc. Rather than putting random chemicals in, you could also try a 60/40 blend of water/coolant since you're in a warmer climate.

 

[jaymar]

It should work, just make sure what you order is large enough to fit all the way around the wiring harness. I did something a little different to protect the harness on my truck. I made a form fitted heat shield out of high temp silicone rubber supported by an Aluminum frame that is sandwiched in between the EGR tube and the harness. With that heat shield in place there is no way for that EGR tube to melt a hole in my harness.

Did you do a writeup?

 

[Rifleman]

Jaymar, After reading about the damage done to other members wiring harness i though it would be a good idea to make something to protect mine. I'm sorry to say i didn't do a write up, or take any photos.

On the intake manifold on my 94, close to the EGR tube is an unused threaded hole. I decided to use that hole as the anchor point to mount my heat shield to.

For the anchor i used a short piece of metric all thread that i screwed into the intake manifold, it's locked in place on the manifold with a jam nut. On the other end of the all thread is where the heat shield is mounted. The heat shield is held in place by being sandwiching between 2 jam nuts.

I took a flat piece of aluminum sheet metal, cut it to size, and using a bench vice as a sheet metal break i bent it into the appropriate shape to fit between the EGR tube, and the harness. The finished heat shield kind of resembles the shape of the letter Z.

Next i cut some high temp silicone rubber the same length and width as the aluminum heat shield. I formed and attached the silicone rubber to the heat shield with pop rivets. Last, i drilled a hole through the heat shield so it could be held in place by the all thread.

The silicone rubber faces the harness and acts as a high temp insulator, the Aluminum acts as a heat reflector, reflecting the heat away from the harness.

 

[jaymar]

Jaymar, After reading about the damage done to other members wiring harness i though it would be a good idea to make something to protect mine. I'm sorry to say i didn't do a write up, or take any photos.

On the intake manifold on my 94, close to the EGR tube is an unused threaded hole. I decided to use that hole as the anchor point to mount my heat shield to.

For the anchor i used a short piece of metric all thread that i screwed into the intake manifold, it's locked in place on the manifold with a jam nut. On the other end of the all thread is where the heat shield is mounted. The heat shield is held in place by being sandwiching between 2 jam nuts.

I took a flat piece of aluminum sheet metal, cut it to size, and using a bench vice as a sheet metal break i bent it into the appropriate shape to fit between the EGR tube, and the harness. The finished heat shield kind of resembles the shape of the letter Z.

Next i cut some high temp silicone rubber the same length and width as the aluminum heat shield. I formed and attached the silicone rubber to the heat shield with pop rivets. Last, i drilled a hole through the heat shield so it could be held in place by the all thread.

The silicone rubber faces the harness and acts as a high temp insulator, the Aluminum acts as a heat reflector, reflecting the heat away from the harness.

Sounds cool, snap a pic sometime if you still have the rig...