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.
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?
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 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
Chevy LS7 Engine Specs · Help Center - Summit Racing
Engine Block Specifications. Casting Number: 12598723. Material: 319-T7 aluminum. Displacement: 7.0L / 427 c.i.d. Cylinder liners
Chevy LC9 Engine Specs · Help Center - Summit Racing
Engine Block Specifications. Casting Numbers: 12571048, 12601900, 12569513, 12568573. Material: Aluminum. Displacement: 5.3L / 325 c.i.d.
How do I measure the resistance range of my fuel level sender?
Disconnect the plug at the sender. Set the Multimeter to Ohms. Depending on how your sender is grounded, do one of the following: If the sender is grounded through the fuel tank - connect one lead of the multimeter to the sender wire and the other lead to the body of the sender.
Ford Big Block (385 Series) Firing Order · Help Center - Summit …
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What is a Camshafts RPM Range? · Help Center - Summit Racing
This range is where the engine will produce the most Torque and Horsepower. How is it measured? The rpm range is determined by the camshaft manufacturer. The listed range is a result of testing the camshaft on a dyno with different combinations of engine parts. Many factors affect this range, including: Carburetor CFM Rating, Intake Runner Volume,
What size fuel pump do I need? · Help Center - Summit Racing
In the following example of a curve chart, flow is shown by the green and blue lines. This pump has a free flow rate of 78 gph. At 60 psi. flow rate drops to 62 gph. Electrical Considerations. The chart above shows a couple important things about an electric fuel pump. Flow rate increases with voltage and amp draw increases with pressure.