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- What is Engine Detonation? · Help Center - Summit Racing
What is Engine Detonation? Definition and Description Detonation is spontaneous combustion inside the cylinder AFTER the spark plug fires It is similar to Pre-Ignition, but it is different During normal ignition, the spark plug fires just before the piston reaches TDC The flame travels across the combustion chamber igniting the Air Fuel Mixture
- What is Engine Pre-Ignition? · Help Center - Summit Racing
It is similar to Detonation, but it is different When pre-ignition happens, something ignites the Air Fuel Mixture d uring the Compression Stroke This creates too much pressure inside the cylinder, too soon The piston is then forced to compress already heated, expanding gases Pre-ignition will cause significant damage without warning
- Supercharging Basics – Engine Preparation · Help Center
Detonation is the single most destructive force in a supercharged engine This may include lowering boost level, retarding timing, installing a boost timing master, increasing fuel flow to prevent leanout, and or using a fuel additive to raise octane level
- What is ignition timing? · Help Center
Retarding the timing can help reduce Detonation However, if the spark happens too late, you will lose power This is because the cylinder pressure won't reach it's max until the piston is already headed back down on the Power Stroke Engine damage and overheating can also be a problem How is it controlled?
- What is engine quench? · Help Center
It creates turbulence, which forces the air fuel mixture toward the spark plug This reduces the possibility of Detonation It also leads to cleaner emissions What should it be? Quench should be as tight as possible, without the piston contacting the head Recommended quench depends on your max rpm and the type of connecting rods you use
- What are the differnt Piston Styles? · Help Center
It can be used in turbocharged or supercharged engines to help avoid Detonation It makes for a fast-burning, compact combustion chamber Domed Pistons This piston has a dome-shaped top It reduces the chamber volume and increases Compression Ratio However, it can create slow-burning, inefficient combustion chambers Valve Reliefs
- Do I need aluminum heads? · Help Center - Summit Racing
Aluminum heads will dissipate heat faster This allows for higher Compression Ratios with less risk of Detonation The cooler head also delivers a cooler air fuel mixture to the combustion chamber Cooler air is denser and can make more power Cast iron heads will help the engine warm-up faster This is good for drivability after a cold start
- Spark Plug Heat Range · Help Center
How does it affect performance? For most vehicles, it is best to use the manufacturer recommended plugs When you increase Compression Ratio or use boost, chamber temperature increases In these instances, a colder plug may be needed Follow this link for more information on Determining Correct Spark Plug Heat Range Notes The optimal temperature to remove carbon deposits from the tip of the
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