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The Intake Manifold was sent out to PolyDyn.
After taking the 4.7L TRD supercharger off and going back to stock for now I decided to test their coatings out.
No Urethane coating for now.
It would be extra of course. I'm just wanting to see what these coatings are all about for future projects.
Big Plans for the TRD supercharger.
The Exterior of the Intake Manifold: Everything turned out pretty good. Thermal Barrier & Thermal Dispersant coatings where needed. Silver Titanium Coating over those coatings.
Inside the Intake Manifold: The Entire surfaces have been coated with a Thermal Dispersant/Oil Shed Coating.
I would show pictures of the interior coating but I cannot find the pictures.
The PolyDyn Interior Coating improves air flow as it fills in/smooths out the imperfections/rough casting surfaces.
The Oil Shed Coatings' purpose is so oil does NOT pool up and/or gum up/stick to the aluminum surfaces within the Manifold.
This common problem of the PCV to the Throttle Body/Intake Manifold on any vehicle using this system causes Power Loss.
Due to Drastic Ignition Timing changes as Oil build up occurs over time.
Which the engine vacuums back into the cylinder causing the ignition timing changes. The higher the vacuum the more oil your engine ingests.
Not to mention.... dirt particles/contaminants sticking to the oil being you're someone who has dirty Air filters. << NOT me BTW.
PolyDyn's Oil Shed Coating is similar to what Porting and Polishing does.... (Of course)... minus the Extra Improvements in HP/TQ yielded from removing material.
Overall: What these coatings Have done is significantly cooled down my Air Intake Temperatures.
You can put your hand on the Intake manifold , applying pressure after driving for 30-60 mins.
And it will not burn your hand unlike the Stock: Bare Aluminum Manifold. It will most certainly do this if you try. The un-coated Stock Toyota Intake Manifold I swear has more heat soak.
More than my TRD supercharger plenum/Intake Manifold. It got hotter, Much hotter.
While I was at it. Knowing the PCV problem I picked up an Arrington Air/Oil Separator/Catch Can.
Made the mount using the existing Throttle body cover mounts.
After taking the 4.7L TRD supercharger off and going back to stock for now I decided to test their coatings out.
No Urethane coating for now.
It would be extra of course. I'm just wanting to see what these coatings are all about for future projects.
Big Plans for the TRD supercharger.
The Exterior of the Intake Manifold: Everything turned out pretty good. Thermal Barrier & Thermal Dispersant coatings where needed. Silver Titanium Coating over those coatings.
Inside the Intake Manifold: The Entire surfaces have been coated with a Thermal Dispersant/Oil Shed Coating.
I would show pictures of the interior coating but I cannot find the pictures.




The PolyDyn Interior Coating improves air flow as it fills in/smooths out the imperfections/rough casting surfaces.
The Oil Shed Coatings' purpose is so oil does NOT pool up and/or gum up/stick to the aluminum surfaces within the Manifold.
This common problem of the PCV to the Throttle Body/Intake Manifold on any vehicle using this system causes Power Loss.
Due to Drastic Ignition Timing changes as Oil build up occurs over time.
Which the engine vacuums back into the cylinder causing the ignition timing changes. The higher the vacuum the more oil your engine ingests.
Not to mention.... dirt particles/contaminants sticking to the oil being you're someone who has dirty Air filters. << NOT me BTW.
PolyDyn's Oil Shed Coating is similar to what Porting and Polishing does.... (Of course)... minus the Extra Improvements in HP/TQ yielded from removing material.
Overall: What these coatings Have done is significantly cooled down my Air Intake Temperatures.
You can put your hand on the Intake manifold , applying pressure after driving for 30-60 mins.
And it will not burn your hand unlike the Stock: Bare Aluminum Manifold. It will most certainly do this if you try. The un-coated Stock Toyota Intake Manifold I swear has more heat soak.
More than my TRD supercharger plenum/Intake Manifold. It got hotter, Much hotter.
While I was at it. Knowing the PCV problem I picked up an Arrington Air/Oil Separator/Catch Can.
Made the mount using the existing Throttle body cover mounts.

