![]() Compression Ratio: 11 : 1: Horsepower Rating: 505 hp. The LS7 was available in performance cars between 2006-15. A richer launch AFR of only a small difference at 3.1 to 1 (lambda 0.48) slowed the 60-foot time by a tenth of a second. Jack-rabbit starts for fastest 60-foot times were maintained with a launch AFR at 3.2 to 1 (lambda 0.49). ![]() Calculator Compression Ratio Calculator Race >Free Horsepower Calculator Compression Ratio Calculator Race. If you put a very mild camshaft (194/204. To give an example, lets say youre considering only pump gas for your engine, and it has a static compression ratio of 11:1. It was purpose-built for high-performance. Here’s a blown alcohol funny car which used numerically determined AFR tuning. Pro LS 4340 Forged Steel H-Beam Connecting Rod, 6. Unlike Static Compression Ratio, Dynamic Compression Ratio takes into account camshaft timing by considering the intake valve closing point in relation to the piston position. It is unique because it was based on the C5-R Le Mans Corvette racing engine. This technique is suited to someone who is in the middle of putting an engine together and has the right tools, or someone whose engine is already in pieces. The LS7 is the largest engine in the LS family. We're looking at the first of these ways here. Firstly, you can make a math calculation as accurately as possible, or secondly - the more popular method - uses an empty spark plug socket with a pressure gauge inserted. There are two ways of calculating the compression ratio for an engine. The compression ratio is the ratio between two elements: the gas volume in the cylinder with the piston at its highest point (top dead center of the stroke, TDC), and the gas volume with the piston at its lowest point (bottom dead center of the stroke, BDC). The compression ratio of an engine is a very important element in engine performance. How to use this calculator: Simply fill in all the boxes below with the requested figures and click on "Calculate CR" to find your engine's compression ratio. Compression Calculator Instructions: Enter a value in the un-shaded boxes below as they pertain to your engine. Gear Ratio Calculator Configure and preview the ideal gear ratios for your application. This compression ratio calculator can be used to work out the compression ratio of your engine. Wallace Racing: Dynamic Compression Ratio Calculator calculates your engines compression ratio for changes in camshafts, rod length, static compression.
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