Descripción de 【ヤシオ】 Nissan 240SX KA24DE Tuned by Yashio Factory:

Yashio Factory imported 240SX, sounding its exhaust; Kasukabe plates, Yashio-shi, Saitama-ken, Japan Yashio Factory is a performance shop located in Yashio City, Saitama, Japan Horsepower: The SR creates far more horsepower then a turbocharged KA. Although the KA has a 25% increase in displacement, the displacement is found in the stroke. The larger stroke limits the KA's ability to rev as high as the SR. Since HP = Torque(RPM)/5252 (torque @ a given RPM is multiplied by that RPM, then the answer is divided by 5252) higher revs will create higher HP readings. (You will notice on graphs that all engines have the same horsepower and torque at 5252 RPMs). Torque: The KA obviously creates far more low-end torque (created by the bigger stroke). Since torque is what moves you, you would think the KA would be the better choice. The SR, however, can easily overcome this loss in low-end torque. Since the KA redlines at approximately 6,000 RPMs and the SR at 7,500 RPMs the SR can create more low-end torque. How, you ask? Well there are two kinds of torque, engine torque and gear torque. The KA produces more engine torque and since the SR revs higher it can use a lower gear ratio too build more gear torque. The gear torque quickly increases the total torque output in a vehicle. Therefore, with the 25% increase in RPMs, the SR can produce comparable low-end torque. Weight: Obviously, this is a huge concern for any racer. Lighter weight means quicker acceleration, deceleration, and better handling. The SR is an all aluminum construction, while the KA has an iron block. Technology: The KA is a truck engine. It uses a distributor and is fuel injected. That is about the extent of its technology. The SR has direct ignition, and continuously variable valve timing (late model SR20s). This technology will give the SR a flatter torque curve then the KA. I know the saying goes, "There is no replacement for cubic displacement," but I would take the SR over the KA any day of the week. Besides, what would you rather have? A big block NASCAR engine or a F1 engine? SR20DET vs. KA24DE http://www.car-forums.com/s15/t1645.html SR20DET vs. KA24DE http://www.car-forums.com/talk/showthread.php?t=1645