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Turbo Tech: Compression Ratio with Boost
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Courtesy of TurbobyGarrett.com ( http://turbobygarrett.com/turbobygarrett/compression_ratio_with_boost ) Before discussing compression ratio and boost, it is important to understand engine knock, also known as detonation. Knock is a dangerous condition caused by uncontrolled combustion of the air/fuel mixture. This abnormal combustion causes rapid spikes in cylinder pressure which can result in engine damage. Three primary factors that influence engine knock are: Knock resistance characteristics (knock limit) of the engine: Since every engine is vastly different when it comes to knock resistance, there is no single answer to "how much." Design features such as combustion chamber geometry, spark plug location, bore size and...
OEM Acura RSX K20 Shop Manual -- Pass it On.
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The OEM Shop Manual is always an excellent resource to have around. For everyone elses good fortune someone has graciously uploaded the entire 2002-2003 RSX Shop Manual Online. This is very handy for torque specs, fastening sequences and a heck of a lot more. Here is a direct link to open or download it at your discretion FREE of charge. Feel free to pass it on and let others know about this great tool as well. Right Click, Save As -- http://IPGParts.com/AcuraRSXShopManualK20.pdf Â
F1 Edition CRX and Civic Si
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You learn something new everyday and today I learned of a special Honda CRX and Honda Civic Si Edition that I never knew existed. It is called the F1 Special Edition and was offered in the 1986 Model Year as a CRX Si and a Civic Si. There is a very limited amount of information on this model from what I have found researching it. A couple of real sales brochures have been found and a decent looking clone car. Very difficult to even find an image of an authentic one in the real world. No idea how many of...
Integra RS K20 Road Race Transformation
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A couple of months ago we purchased a nice '94 Integra GSR that was setup for track duty. We enjoyed it at Sebring so much that we decided to convert our Integra RS Project car into a more dedicated track car by utilizing a lot of the parts that happened to be installed on the GSR. We are almost finally done with the transformation and the car has already attended its first track day at Road Atlanta. The goal for the car is to have a very fast, very reliable track rat that has the amenities to be able to...
Turbo Tech: Log Manifold vs Tubular Manifold
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More Great Turbo Tech from www.TurbobyGarrett.com There are two different types of turbocharger manifolds; cast log style (see Figure 3.) and welded tubular style (see Figure 4.). Â Â Manifold design on turbocharged applications is deceptively complex as there many factors to take into account and trade off . General design tips for best overall performance are to: Maximize the radius of the bends that make up the exhaust primaries to maintain pulse energy Make the exhaust primaries equal length to balance exhaust reversion across all cylinders Avoid rapid area changes to maintain pulse energy to the turbine At the collector,...