Exclusive to MACE Engineering, our design-registered lower manifold insulator to suit RB30 Nissan/Holden engines (NA or Turbo)
* Produces a cooler intake and intake manifold charge resulting in more power.
* A cooler intake charge also reduces the tendency for detonation, meaning more ignition timing or boost for more power!
* Improve low end torque by increasing runner length.
* Better fuel economy
* Reusable over and over again.
* No undesirable side effects
What are manifold insulators and what do they do?
Manifold insulators are a thermal insulating spacer that mounts between your upper and lower intake manifold. Made from a heat blocking composite, our manifold insulators will increase power from your engine by keeping the intake cooler, and increase low end torque by increasing runner length.
But how do manifold insulators keep the intake manifold cooler?
Given our manifold insulators are made from a composite material with a thermal conductivity of 0.29 W/m*K as opposed to aluminium, which has a thermal conductivity of 150 W/m*K; The difference works out to be that aluminium conducts heat 500 times higher then our composite material!
Also, with gaskets often made out of steel (20 W/m*K thermal conductivity), placed between the upper and lower manifolds, replacing a .5mm gasket with a 12mm manifold insulator will conduct an amazing 1087 times less heat (yes, that's over 100,000% reduction!). What this basically means is that it becomes very difficult for the engine to heat up the manifold, which ultimately means more power for extended periods (i.e. considerably fewer heat soak issues)!
Our composite material also exhibits high stiffness and compressive strength, can withstand temperatures up to nearly 150C, and has a thermal expansion coefficient very similar to aluminium to increase sealing capabilities. In addition, the spacer can also withstand boosted conditions with ease.
1x pair 12mm manifold insulator.
What about Installation?
Installation is straight forward, requiring only the removal of your upper manifold to install the manifold insulator as shown below.