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Race Fuel - Compression ratios
http://www.turbofast.com.au/racefuel5.html
Compression Ratio and Octane Ratings: What You Need …
https://auto.howstuffworks.com/compression-ratio-octane-ratings.htm
"As the piston moves down the cylinder, it draws in 500 cc of air and fuel. The valves close and the piston moves up, compressing the 500 cc charge. If that charge is compressed into 50 cc, the compression ratio of the engine would be 10:1." Remember, under normal circumstances the compressed air and gas mix is ignited by a spark plug.
The Science of Compression Ratios for Performance …
https://www.musclecardiy.com/performance/science-compression-ratios-performance-engines/
Those are all things we can control and so are the items on our list, all of which are right there inside the cylinder exerting their influence on compression ratio. Consider the basic formula. Compression Ratio (CR) = (V1 + V2) ÷ V2 Where: V1 = cylinder volume V2 = combustion chamber volume
Fuel 101: Race Gas, Octane, and Alternative Fuels Explained
https://dsportmag.com/the-tech/fuel-101-race-gas-octane-and-alternative-fuels-explained/
Engines that run higher compression ratios (above 10:1), operate at higher speeds (generally over 6,500 RPM) or use some form of forced induction are usually the applications where improving the quality of the fuel results in a significant increase in performance.
race engine compression ratio - Don Terrill’s Speed-Talk
https://www.speed-talk.com/forum/viewtopic.php?t=17547
The engine will have an operating range of about 6300 - 8600 RPM. It will be in a 3000 door car, manual trans, with performance in the high 9’s. Horsepower will be about 635 or so. My heads are 55cc chambers and by using a -5cc flat top with .045 deck clearance the compression ratio will be about 11.9:1
How To Pick The Right Racing Fuel With VP Racing Fuels
https://www.dragzine.com/tech-stories/fuel-cooling-ignition-tech/how-to-pick-the-right-racing-fuel-with-vp-racing-fuels-2/
Explained Freddie, “It’s recommended for use on 3/8 mile or greater dirt and asphalt circle tracks in engines bigger than 400 ci and compression ratios up to 15:1. Late Model Plus is more effective than any fuel on the market at making more power while suppressing engine operating temperatures.
Standard - Sunoco Race Fuels
https://www.sunocoracefuels.com/fuel/standard
Sunoco® Standard™ is a 110 octane leaded race fuel that is used in many forms of motorsports. Sunoco Standard is designed for compression ratios up to about 13:1 in conventional V8 engines with iron cylinder heads. It can tolerate higher compression ratios in aluminum cylinder head applications or engines with smaller or more efficient ...
Drag Racing Engines Fuel Mixture - Engine Builder Magazine
https://www.enginebuildermag.com/2018/01/fuel-mixtures-drag-racing-engines/
NHRA A-Fuel Dragster engine runs a high percentage of nitro at 90% that provides about 75% of the burn power from monopropellant combustion. AFR is extremely fat at about 0.35 to 1 in this oxygen-rich mixture of mostly nitro. For example, a typical 14-71 Roots blower displaces 550 cubic inches per revolution.
Octane Requirement vs Compression Ratio - Team Chevelle
https://www.chevelles.com/threads/octane-requirement-vs-compression-ratio.272972/
You could always back the timing advance off until the detonation stops, but you'll lose a lot of power that way. That's counterproductive. I designed my 383 to fight detonation, using all the techniques described above. It runs on 87 octane to 6,500 rpm with 9.7:1 compression and made 545 peak hp on the engine dyno.
Boost vs Compression: Benefits of High Boost & High …
https://dsportmag.com/the-tech/boost-vs-compression-benefits/
The Venom Racing team became the first import drag racers to run in the 6s running on ethanol as a fuel. Dished pistons (front)are most common on lower-compression engines, while domed pistons (rear) tend to appear in higher compression engines. 17:1 Compression Ratio and 45psi Boost Pressure
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