Spark Plug Heat Range · Help Center - Summit Racing
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 spark plug is 450º - 500ºC. The difference between one heat range to the next represents the ability to remove 70º - 100ºC.
What spark plugs should I buy? · Help Center - Summit Racing
The tip of the plug must be in the right spot of the cylinder. This is determined by the plug's reach. Follow this link to learn more about Spark Plug Reach. Heat Range. Heat range will tell you the plug's ability to remove heat from the chamber. It is VERY important, especially when using power adders. Follow this link to learn more about ...
Spark Plug Thread Size · Help Center - Summit Racing
The thread size for Spark Plugs refers to the size of the threads that screw into the cylinder head. The first number is the diameter. The second number is the thread pitch. Some common thread sizes are: M18 x 1.5; M14 x 1.25; M12 x 1.25; M10 x 1.0; How is it measured?
Spark Plug Reach · Help Center - Summit Racing
The reach is the distance between the end of the threads and the seat of the spark plug. It does not include the electrodes or any extended metal shell. How is it measured? The reach can be measured using a set of Calipers. How does it affect performance? Reach determines how far the plug "reaches" through the cylinder head.
Spark Plug Gap · Help Center - Summit Racing
Spark plug gap (or "air gap") is the distance between the center electrode and the ground electrode. This is the gap the voltage jumps to create the spark. How is it measured? There are Several Tools to use with spark plug gap. Some are designed to measure the gap. Others are designed to adjust the gap.
Spark Plug Insulator Type · Help Center - Summit Racing
Spark produced is closer to the center of combustion chamber; Greatest efficiency; Extra-Projected: Central electrode and insulator protrude anywhere from 2.5mm to 10+mm. Not recommended unless explicitly listed by the engine or spark plug manufacturer; Non-threaded "shroud" is sometimes included to provide some protection to the exposed insulator
Small Block Chevrolet Torque Specs · Help Center - Summit Racing
Fastener Type: Torque Spec: 7/16 in. Outer Main Cap Bolt: 65 ft.-lbs. 7/16 in. Inner Main Cap Bolt: 70 ft.-lbs. 3/8 in. Outer Main Cap Bolt
What is Carburetor CFM Rating? · Help Center - Summit Racing
Carburetors are sized by how much air they can flow. This is expressed in cubic feet per minute (cfm). It is important to understand that cfm has nothing to do with fuel.
Contact Us · Help Center - Summit Racing
Terms of Use | Privacy and Security | Site Accessibility. Let's Build it Together ™ ™
How does an ignition coil work? · Help Center - Summit Racing
The current is sent to the spark plug. Depending on the design of the ignition system, the current may pass through the distributor or go directly to the spark plugs. Related Products: Ignition Components, Other Ignitions & Electrical