Exclusive to Mace Engineering, here we have our design-registered lower manifold insulators to suit the Nissan R31 Skyline fitted with an RB30 3.0L 6 cylinder engine.

 

What are manifold insulators and what do they do?

Manifold insulatorsare a thermal insulating spacer that mount between your engine block and 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 toaluminium, which has a thermal conductivity of 150 W/m*K; The difference works about to be thataluminium conducts heat 500 times higher than our composite material!

Also, with gaskets often made out of steel (thermal conductivity of 20 W/m-K) placed between the upper and lower manifolds being 0.5mm thick, replacing them with a 12mm manifold insulator will conduct an amazing 1655 times less heat.

Our composite material also exhibits high stiffness and compressive strength, can withstand temperatures up to nearly 150°C, 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.

 

Key Benefits:

• Design registered.
• Reduces charge air temperature resulting in better power consistency and detonation prevention.
• Power increase with no undesirable side effects.
• Improvedlow end torque by increasing runner length.
• Improved fuel economy.
• Easy to install.
• Can be used as a replacement gasket.
• Reusable.
• Proven gains at an affordable price.

 

Contents:

• 1 X Pair of 12mm manifold insulator

Vehicle Fitment Guide

 

Note: Depending on the inlet manifold type, these manifold insulators may require longer manifold bolts for installation.