![]() ![]() During testing of our clutching components, we drove with the clutch cover off to make sure they would be durable in sandy and dusty conditions however WE ALWAYS recommend driving with the clutch cover ON.In short, a throw-out bearing is the component of the clutch which temporarily disengages a car’s engine from the transmission during gear shifts. Our different primary springs are matched to the different clutch weights / clutch kits to deliver the desired engagement RPM’s.įinally, we engineered the boss on the bearing housing to have an inverted cone shape so sand, dirt and water is ejected from the sliding surface rather than sticking to the surfaces which can damage the bushing. ![]() Increased bearing surface area equals better sheave parallelism which in turn means more consistent belt grip and belt life.Ĭlutch Springs: Our proprietary springs are manufactured from the highest quality Chrome Silicon steel, then shot peened and preset to relive stress for a long life.Another unique feature of our bearing housing is a 30% increase of the integrated bushing.Our unique setup allows up to 400 rpm of adjustment with a simple rotation of the bearing cap.A customer can take an X3 setup for trail and bring the vehicle to the dunes with only minor clutching adjustments!.Adjustments are performed in 10 degree increments simply by loosening the outer socket head cap screws and twisting the cap to the next recessed bolt locations.The advantage is you can increase or decrease your operating rpm just by changing the clocking of the billet bearing housing in relationship to the helix. Once installed, the EVP Shift-Tek billet helix and bearing housing solves these issues by easily allowing 90 degrees of spring tension adjustment without disassembling the clutch. Complicating matters is the difficulty involved in disassembly/reassembly and requiring specialty tools for the OEM setup. Many consumers don’t understand how the spring holes effect the shift pattern or how to change it in the stock helix. Borrowing experience from our early snowmobiling days, we wanted to make it easy to adjust the torsion spring which in turn drastically affects the operating rpm of the engine. Additionally, except for our big turbo applications where additional mass is required, the weights are kept thin without excessive mass on the tip for quicker backshift.īillet Helix / Bearing Housing: The EVP billet adjustable secondary helix and bearing housing is not only a work of art but adds a new level of functionality and adjustability to the OEM secondary clutch.Our weights have a more aggressive arc which makes for much quicker upshift and backshift.The OEM weights have a very shallow or flat arc which contributes to a lazy shift pattern. ![]()
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