High Performance Engine Coating QuestionsWHAT PARTS SHOULD BE TREATED?
HOW MUCH POWER WILL I GAIN?
- Any part subject to friction, loss of lubricating film, heat damage, corrosion or abrasion. In addition enhanced appearance is possible for parts such as headers, brackets, and suspension pieces.
HOW LONG WILL THE COATINGS LAST?
- This will depend upon many factors that will vary from application to application. Testing has shown significant power increases on a dyno. In addition certain changes can be made in such areas as tolerances, timing, jetting and the lubricants used, that will increase torque and H.P. and are only possible through the use of coatings. Horsepower gains of up to 40h.p. have been measured in independent dyno testing.
WILL I SEE A TEMPERATURE CHANGE?
- Depending on the coating, part life increases from two (2) to ten (10) times what is normal can be seen. In addition coatings such as CERMAKROME can provide virtual lifetime protection against rust. The dry film lubricants may burnish until they are no longer visible, however, the active materials are bonded into the pores of the part and continue to provideprotection.
WHAT ABOUT CLEARANCES?
- Parts will run cooler. Engine oil and water temperatures have shown a reduction. On headers the radiated heat will be substantially reduced leading to lower underhood temperatures and less heat absorption by nearby parts and surfaces.
WHAT ABOUT MACHINING, BALANCING
- The dry film lubricants will burnish as they run until they are no longer visible. They are applied at thicknesses ranging from .0005" to .0015". However, before assembly the coating may be burnished back to less than .0002" with gentle buffing. NO CHANGES need to be made in clearances due to the use of these coatings, though in many instances because of the reduced part temperature and increased lubrication tighter clearances may be run.
HOW IS IT DONE?
- All machine work has to be done first.
HOW DOES USING WSX NOT HURT RING SEAL?
- Parts first must be sandblasted at low pressure (40 psi using a suction type blaster) using fine sand (120 grit aluminum oxide is recommended), NOT with glass bead. Then the part should be degreased using acetone, lacquer thinner, M.E.K. or similar non petroleum based solvent that leaves no residue.
WHY IS BLACK SATIN A BETTER THERMAL BARRIER THANCERMAKROME,
- The WSX powder only goes on 20 millionth of an inch thick. This does not fill in the cross hatch. In fact WSX actually improves ring breakin, seal and long term leak down.
WHAT TUNING CHANGES WILL BE NECESSARY?
- SINCE BLACK SHOULD EMIT MORE HEAT THAN A SILVER COATING?
While it is true that black normally is a better color to emit heat, in this instance the color is not as important as the fillers in the coating. These fillers are very effective insulators, sufficiently so that the black color does not affect the function. Interestingly the silver color of CERMAKROME or any other Metallic Ceramic Coating comes from the aluminum filler. Aluminum is a very good conductor of heat. Yet the effectiveness of these coatings are not degraded.
- The changes necessary will vary from engine to engine and depend on how many parts are coated. In general coating the combustion chamber surfaces will allow you to run less initial timing with no loss of power (usually a gain will occur). You may also be able to run significantly less fuel, due to the more efficient oxidation that occurs with the coated parts. You should be able to run smaller jet sizes. Obviously no specific recommendations can be made as every engine/combination will be different.