fits model: 240sx. make: Nissan. year: 1991–1998.

( Brand: Unorthodox Racing ), ( Manufacturer Part Number: 02.10.102.02 ), ( Type: Crank Pulley ), ( Surface Finish: Aluminum ), ( Country/region Of Manufacture: Unknown )
The 02.10.102.02 Unorthodox Racing Underdrive Crank Pulley for Nissan 240sx (1991-1998, Ka24D and Ka24DE) is a high-performance upgrade designed to enhance the power output and efficiency of your engine. This crank pulley is engineered to reduce the engine's rotational speed, resulting in lower engine revolutions per minute (RPM) at a given engine speed.
The Unorthodox Racing Underdrive Crank Pulley is made from top-quality materials, ensuring durability and reliability. It is constructed from 6061-T6 aluminum, a lightweight yet strong alloy that is resistant to corrosion and fatigue. The pulley features a CNC-machined finish, providing a precise fit and smooth operation.
This underdrive pulley is designed to fit directly onto your existing crankshaft, replacing your stock pulley. It comes with a belt tensioner adapter, ensuring a seamless installation process. The pulley has a compact design, reducing the overall size of your engine's front end, which can be beneficial for those looking to improve the aesthetics of their engine bay.
The Unorthodox Racing Underdrive Crank Pulley for Nissan 240sx is a must-have upgrade for performance enthusiasts. By reducing engine RPM and improving power output, this pulley can help your engine perform better, run cooler, and last longer. With its high-quality construction and easy installation, this underdrive pulley is an excellent value for any 240sx owner looking to improve the performance of their Ka24D or Ka24DE engine.
Pros of buying a 02.10.102.02 Unorthodox Racing Underdrive Crank Pulley for Nissan 240sx (91-98 Ka24d/Ka24de):1. Reduces engine RPM at idle, which can lead to a quieter and more comfortable driving experience.
2. May improve fuel efficiency due to reduced engine revs.
3. Can help prevent belt slippage and engine damage caused by excessive RPMs.
4. Adds a unique and performance-oriented aesthetic to the engine bay.
Cons of buying a 02.10.102.02 Unorthodox Racing Underdrive Crank Pulley for Nissan 240sx (91-98 Ka24d/Ka24de):1. May require adjustments to other components, such as the timing belt or camshaft position sensor, to ensure proper alignment and function.
2. Potential for noise or vibration if not installed properly or if the pulley is not a good fit for the specific engine.
3. May not provide a significant performance increase in terms of horsepower or torque, especially if the engine is not modified for additional power.
4. Can be an expensive modification, depending on the cost of the pulley and any necessary parts or labor for installation.
Conclusion:The Unorthodox Racing Underdrive Crank Pulley is a performance modification that can add a unique aesthetic to the engine bay and potentially improve fuel efficiency and reduce belt slippage. However, it may require additional adjustments and could result in noise or vibration if not installed properly. Additionally, while it may not provide a significant power increase, it can still be a worthwhile modification for those looking to enhance the look and functionality of their Nissan 240sx engine. Ultimately, the decision to purchase this modification should be based on individual needs, budget, and the specific condition of the engine.
Recommendation:If you are interested in purchasing the Unorthodox Racing Underdrive Crank Pulley, it is recommended to do thorough research and consider the pros and cons listed above. Additionally, it is important to ensure that the pulley is compatible with your specific engine and to consult with a professional mechanic if necessary to ensure proper installation and function.
New never installed. There is a mark don't know if its from factory, please view pics. Never got around to doing so now just selling it.
As mentioned this part was for a friend of ours who owned an ultimo. Thanks again.