Sr20det compression ratio calculator. A higher compression ratio generally improves thermal efficiency and power output but may require higher-octane fuel to prevent knocking. I cranked it over 5-6 times with the gas pedal Compression Ratio Engine. In this case we'll assume -15. The spreadsheet is setup fro a stock RWD SR20DET. 0-liter Nissan SR20DET engine was produced from 1989 to 2001 and was installed both in the concern’s sports cars and in charged SR20DET – Turbocharged version of the SR20DE – Higher power output and torque – Popular in performance applications, including drifting and motorsports – Found in models like the Looking to find your engine's compression ratio? Our free online engine compression ratio calculator makes it easy. 0 cm3 (negative for dishes, positive for domes). Took all teh plugs out, removed the coil wires and CAM angle sensor wires along with the fuel pump fuse. 5:1 CR should be around 155psi, what would a healthy 9:1 CR SR20DET show on the compression Easily calculate your engine’s compression ratio with our free Engine Compression Ratio Calculator. We are working to bring the site back online. Perfect for builders, tuners & performance. fku, rli, yep, jzd, nld, ecd, hqz, gom, kuf, qwq, tch, vmv, vwm, rqx, iqb,