Coating the combustion chamber of a cylinder head can increase performance significantly. In addition, more compression can be run as the proper coating will provide resistance to early detonation and permit tuning changes to increase the level of power generated. By coating the combustion chamber the amount of heat that escapes during the power stroke is reduced which means more of the heat energy generated is utilized to "push" the piston down. The coating also insulates the surfaces so that they absorb less heat, reducing the load on the cooling system and reducing the amount of dimensional change the head may see from the heat it absorbs. The coating functions in several ways: (1) To keep heat in (Thermal Barrier) (2) To move heat over the surface to reduce hot spots (Radiation) (3) Reflect heat into "cooler" or shrouded areas of the chamber (Convection) and (4) The coating retains less residual heat from combustion than other thermal barriers, thus transferring less heat to the incoming fuel charge (Reduced Thermal Transfer).
Combining these features increases power levels, reduces part operating temperature, aids in reducing early detonation and can increase fuel efficiency and reduce emissions. By allowing the heat of combustion to be more efficiently used, the fuel charge is better combusted, allowing more compression while reducing the fuel quantity need (in most cases) and increasing power. By accelerating the burn rate of the fuel, through better heat management, less timing is needed to have the optimum burn occur at top dead center. TCB-101 is the standard coating to be used, with TCB-102 recommended for very high compression motors (13:1 and above) or for engines that have tight quench areas as well as turbo-charged, super-charged and engines utilizing nitrous oxide systems.
Coating the ports helps with flow and provides additional thermal benefits. Coating the intake runner with a Dry Film Lubricant Coating can reduce fuel drop out while insulating the incoming fuel from the heat of the head. Coating the exhaust with TCB-108 can improve flow by creating a very slick surface, while reducing the amount of heat that can pass from the hot exhaust flow into the head. TCB-101 or TCB-102 may also be used in exhaust ports, though they are not as "slick" as TCB-108. Coating the exterior of the head with TCD-201 (Thermal Dispersant) allows for faster transfer of the heat that is absorbed from combustion, into the air flow around the head, thus allowing the head to run cooler. This will impact the amount of heat transferred to the intake manifold as well as reduce the heat that accessories (mounted on or near the head) will be exposed to. When TDC-201 is applied to the area under the valve cover, better oil drain back is achieved as well as better thermal transfer to the oil, which is cooling the head and valve springs.
Team Synergy Coatings can increase the life and durability of these automotive and engine parts:
- Bearings
- Brakes, Wheels, and Hubs
- Crankshafts
- Cylinder Heads
- Exhaust Manifolds
- Intake Manifolds
- Oil Pans
- Pistons
- Valve Springs
- Valve Train Components
- Valves



