In the ongoing saga of KA vs SR, there has been both progress and setbacks as Jeren and Richard continue their builds. Here is the latest news from both camps as they move closer to the final competition. Text and Photos by Arnold Eugenio and Richard Fong Project SR20 Update […]
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KA vs. SR Battle: Act V | SR20 Built Right And Ready To Fight
In our last SR installment of the KA vs. SR battle series (Issue #90, June 2010) we sent a brand new SR cylinder head core to TOMEI POWERED (TP) in Japan. There, TOMEI POWERED’s cylinder head specialist Mr. Tahara put the head through the TOMEI POWERED Genesis Phase One and […]
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KA24DE vs SR20DET Act IV | Port Flow Design Readies our KA24DE Head
The design of the cylinder head (intake & exhaust port size length and shape; valve angle, valve size, number of valves per cylinder) plays an important role. The design determines the velocity and volume (CFM) of air-and-fuel entering and exhaust gasses exiting the combustion chamber. While the proper selection of […]
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KA24DE vs SR20DET Act III | SR20DET Heads Up
“It’s all in your head.” When it comes to establishing the efficiency and character of an engine, the cylinder head plays the lead role. A cylinder head’s port design, valve sizes, valve angles, valvetrain design and combustion chamber shape will dictate key performance factors. Flow velocities into and out of […]
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KA24DE vs SR20DET Act II | Preparing the KA for Boost
Ugly! There’s no other word to describe the performance of the KA24DE engine in stock form. Nissan tunes the KA24’s 2.4-liters of displacement to deliver just 155 horsepower at 5,600 RPM. Take the KA24DE under the knife and add a turbocharger system and you’ll see the “ugly” transforms into a […]
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D’Garage Silvia | Preparing For the KA vs SR Battle
Is factory turbocharged performance superior? Can an aluminum block deliver the goods? Making the most of the SR20DET engine has been the focus of the D’Garage Silvia S15 project car from day one. With the introduction of our KA vs. SR Challenge, taking the head start that the SR20-powered S15 […]
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SR20DET vs KA24DE | Which is Nissan’s Best Four Cylinder?
Since 1991, the great debate among Nissan’s S-chassis fanatics has been between the SR20DET and the KA24DE. On the one hand, the JDM chassis’s were equipped with the turbocharged SR engines, offering out-of-the-box forced-induction power from the factory. On the other, the USDM variant received the torquey-yet uninspiring KA24DE engine. […]
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