Hasn anyone dealt with Rx7Trix.com's ceramic/teflon coating of the upper & lower intake manifolds? It looks cool compared to just polishing the exterior. Please tell me about your experiences!

 

ive got it. its "cool chrome" applies to the inner and outer surfaces if the LIM and UIM its shiny and bling for looks and i noticed far less heat soak over the summer. the teflon coating would be on the bearings if im not mistaken. just a friction thing. if youre into coatings they can also get your rotor faces ceramic coated which i have and love. batman has it too. its good stuff. i dont have pfc but the underhood temps are down and heat has been blistering for my summer and i havent overheated once. its solid stuff man. thunbs up from me.

 

search for jot-hot or coating. many discussions on this.

i like jet hot but i wouldn't do it on the inside of the manifolds as i've never seen any long term testing that proves this stuff won't flake off.

 

Don't use teflon in your engines, even dupont has said it shouldn't be used inside internal combustion engines.

 

i got the insides extrude honed, then the outsides coated.

 

"i got the insides extrude honed, then the outsides coated"

Me,too. Can't say I think the extrude hone was worth it, but I think the JetHot does help keep intake temps down.

 

Some people might also say that the majority of the heat might just be transfer from the engine to the lim since they are bolted together and that a coating will do nothing but trap it inside where it cant dissapate.....hence lowing engine bay temps since all those btu's are trapped and not being dissapated into the engine bay.

Just thought I'd share one more "theory" and give you some more to think about.

 

I have this and have noticed a 5 - 10C degree drop in intake temps and most importantly less heat soak symptoms ( sluggish starts from a stop, etc.).

The car feels as if it was just warmed up and retains it's "just warmed-up" torque feel.

I had the inside and outside coated to "double" the insulation.

Also, when u coat the inside It smooths the surface. This should help reduce turbulence and help maintain intake velocities near the surfaces.

If I had to do it over again I would extrude hone it first then do the coatings inside and out.

The chrome coating is the best in maintaining a maintainence-free look. It is pretty much chemical proof as well as corrosion proof. It has a 20 - 25% heat transfer/soaking reduction.

The thicker matte black coating has a 30 - 35% heat transfer/soaking reduction.

As u can see I did the LIM the matte black and the UIM chrome (later on I powder coated the top o fthe UIM a wrinkle black for the "OEM" look.

 

If u coat the contact area it will help reduce heat transfer via contact surfaces.

There was a gentleman that does coating in the bay area and he used a torch to demonstrate that it does indeed reduce heat transfer. Fairly dramatic IMHO.

I've coated the intake, IC, and turbo piping as well rotors.

 

BTW, if u still want that polished look without the orange peel, u should still polish it or at least sand it down really good with a fine sandpaper.

 

Where'd you get this done in the Bay Area, Batman?

 

Buddy of mine that does work for NASA and Lockheed.