JAGUAR XK FLYWHEEL / CLUTCH KIT
E-Torque has developed a custom flywheel for the XK engine that is three pounds lighter than the original Jaguar part. We use a modern, custom 9.5” diaphragm clutch to replace the original 10.5” Jaguar clutch. Our smaller clutch actually has more grip than what it replaces. This allowed us to remove extra metal from the perimeter of the flywheel where it is most detrimental to performance. This flywheel also has crank trigger teeth. A crank trigger is essential to EFI applications. We offer a roller release bearing assembly to replace the carbon Jaguar bearing. These parts are packaged together as a kit.
A NOTE ABOUT ALUMINUM FLYWHEELS
Race cars do not stop at lights on hills! They do not need to feather the clutch to launch smoothly. Aluminum flywheels are lighter than those made of steel, and they do allow the engine to rev faster, but they can also shutter when starting from a stop because the aluminum is not as stiff as steel. Aluminum does not respond to heat as well as steel and it expands at twice the rate. Aluminum flywheels are very susceptible to warping and the only remedy is to pull your E-type’s engine out. Aluminum flywheels are intended for RACING - they are not suitable for street use. We have had customers go against our advice and they have ended up pulling their engines out shortly after installing them with an aluminum flywheel.
We also offer a Crank Trigger Package that provides a custom bracket to hold a Hall Sensor and a custom dust shield that has a hole which provides access for it to reach the flywheel. A crank trigger will time the engine instead of a distributor. Distributors are driven by a helix gear. Those types of drives have “lash” which is slop. When the engine is accelerating, the “slop” collects to one side and when the engine is decelerating, the slop goes to the other side. The result is that your engine timing is floating around while you are driving. A crank trigger wheel is bolted to the crankshaft eliminating any “slop”. You will not find car with EFI that does not use some form of a crank trigger.
