Steering
Shock Therapy Polaris RZR Turbo S Racing Rack and Pinion Steering Steering
Polaris RZR Turbo S Race Rack & Pinion
After running with a "stock" rack and pinion in our XP Turbo shop with 32" tires, we simply didn't see any reason to change. We didn't have any excessive wear or rattling, even after 1,500 miles of racing the rack But then, as we were leading our next race, BOOM, lost all steering and we were done. found that the factory rack had broken in half right in the center of the rack gear allowing one half to pull on the right side and the other half to pull on the left side of the rack body! .
No problem, we thought, just order an aftermarket replacement from anyone and it must be better right. Not so fast? Rack replacements used gears. rack which were just 0.085 inch thicker in the same location as our rackaillere had broken in two. Additionally, these racks extended the width of the tie rod pivots to half a width. inches This is really bad. When you change the width of these pivot joints, you add bump direction to your front end geometry. This means that as the suspension moves up and down, the "toe setting" changes a bit to toe, toe or both. This gives you unpleasant feedback in the steering wheel when you hit rocks or whoops, which takes a toll on your arms and hands, sure, but the real damage is to your front end joints, your bushings, ball joints and bearings. . The lifespan of these parts is seriously reduced if your car has dents. Another major drawback of Bump Steer is that the car is constantly trying to "hunt" for a direction to go. As the tires change point, the direction of your car also changes. Every time you hit a bump, jump or hold the steering wheel right, the car will search for direction by pulling left or right alone. This feeling is unnerving in a gaming car, but downright dangerous in any racing car. So we kept looking for another mount and found the only billet mount on the market. We bought it and loved the larger square bracket.k and custom tie rods, but when we measured the width of the tie rod pivot points we found that they were 1 1/2 inches too wide! Would that create more than 3 inches of steering hump? Wow, I can't run that. Having no other choice of mounts to purchase, we were forced to make our own Race mount and here is a list of the items we put in our Race mount that you won't find in any other mount.t!
1 . 7075 aluminum construction. This high quality aluminum is almost as strong as carbon steel and costs 3 times more than the more common 6000 series aluminum.
2. Hard anodized plating. This hardened surface not only prevents wear in the harshest environments, but also extends the internal life of the rack.
3. Lubrication by passing dispersed grease. Our UNIQUE lubricator supplies 6 different locations in the rack through a network of internal passages. Proper lubrication is the key to rack life. Some of the locations fed by the internal passages are the pinion, 500 UTV parts, rack gear on all four sides and vertical stress load points where the rack gear experiences the most potential wear. Thanks to tight internal tolerances, you will only need to grease our rack with two pumps of a grease gunr every 1,000 miles of racing during your routine preparation.
4. Huge 1" x 1" square rack gear. This massive gear is twice as thick as the original round gear at its weak point at the base of the tooth. The size of this gear prevents bending and breakage, but the material used is also 125% stronger than the original material. Another important thing about a square rack gear is that it prevents twisting. The stock round gear has a tendency to twist in the rack body as the tie rods force it up and down. This twist jams the rack in the pinion tooth. This acts like a log splitter when it forces the sharp pinion tooth into the tooth base of the rack gear and creates the "broken" rack gear problems that stock racks are known for. With our square rack gear, there is noe twisting force to be feared and therefore remove all the pinions.forces of the rack gear.
5. Heat pre-treated rack gear. Most racks use a soft material for the rack gear so that the teeth can be easily machined into it. After the machine process, the gear is heat treated to increase its strength. Heat treatment deforms the gear by up to 20 thousandths of an inch. In terms of machine tolerance, it's a huge amount, so they try to bend it or straighten it again, but you can't straighten it to a limited extent and there are often waves in the gearing from one end to the other. This means you need to increase the clearances in the body to allow the equipment to move inside the rack. We didn't like it at all, so we took a different route. We started with perfectly straight pre-cured materialt and cut our gear teeth into it. This is a very expensive process because the tooling wears out very quickly and the machine time is 5 times longer but the end result is a perfectly straight gear with less than 1 thousandth of an inch of runout from end to end. the other! This tolerance allows us to tighten the rack body and keep any play (which contributes to wear) in the rack to ZERO tolerance!
6. Patent pending gear tooth design. In choosing a tooth model, we based ourselves on the industry standards that were initially available. Through exhaustive testing and the intentional use of weaker materials to find points of failure, we found that the base of the standard tooth design was the weakest point and prone to breakage. We looked for another stronger tooth design, but couldn't find anything, so we decided to make our own! Thousands of dollarss in custom tooling later, we now have a patent pending tooth design that has TWICE the base thickness of the gear as a standard system does.
7. Heat treated sprocket. Our sprocket starts as a solid piece of Chromoly 4140 material. After machining our custom tooth pattern, we heat treat the sprocket to a 60 Rockwell. It's actually harder than a carbon steel drill bit for superior strength and longevity!
8. Pinion bearings. The pinion bearing is often overlooked but not here. Normally the pinion bearing is pressed into the rack housing. This puts pressure on the bearing inward and can tighten the pinion and rack slide. We created a new system in which the pinion bearing is not pressed in but barely slides into the rack body with only 1 thousandth of an inch of clearance.e, our bearing retainer plate has a 10 thousandth step that preloads the bearing vertically in the housing so that it cannot move and cannot tighten the pinion and slow down the operation of the rack. Finally, there are many different bearings you can use here, starting at $5 all the way up to $30 very high tolerance bearings. We of course only use the $30 bearings.
9. Faster steering ratio. The factory rack features a two-turn locking system. This means that if you drive straight and place your hand on the steering wheel in the center and turn to the left as much as possible, the steering wheel will make one full turn before stopping. One full turn in a straight, centered line and one full turn to the right. This is two complete turns from one lock to the other. Our Race rack is a faster system. It spins the wheel just after 3/4 ofturn from the center. This means that our rack has a system of just over 1.5 turns. We tried using a higher gear, but found that the power from the electric power steering system was not enough to achieve a higher gear. The steering became heavy and cumbersome, we went back to a 1.5 turn system which is faster but still feels great.
10. High quality rod ends. Our Race Rack uses huge 5/8 rod ends for the tie rod pivots on the ends of the rack gear. We would never use inferior injected rod ends. We use only the highest quality, Teflon lined, eBay Polaris UTV parts and FK JMX10-T rod ends. You'll be able to run a full Best in the Desert season on these rod tips without having to replace them.
11. Locknuts «Tap Lock". Our patent-pending rod end lock nuts, called "Taper Lock" is an industry first. If you've gone shopping with rod ends and lock nuts on your spoke rods, tie rods, or control arms, you know that lock nuts always come loose. Most teams weld them in place to prevent this. We didn't want any welding on our rack gear, so we developed the "Taper Lock" system which uses a tapered machinist's tool to lock the jam nut and rod end in place. When you tighten the locknut, the in-line pieces, the male cone of the nut and the female cone of the rack gear seat together and lock like a tool collet in a milling machine or lathe. These locknuts also serve as direction stops for moving the rack. Positive lock and no release is the only wayto finish the races!
12. 4130 Chromoly screeds. Our tie rods that allow you to attach your tie rods to our rack are huge. They are made from solid 4130 Chromoly and use high tolerance 5/8 diameter shoulder bolts to connect to the rack's 5/8 rod ends. WELD on Clevises have two machined steps that are designed to be inserted into your tie rod tube and welded. The tube diameters for the clevis are 1" for .120 wall tube and for 1 1/4 .095 wall tube. We also offer a 5/8 threaded clevis designed to be screwed into your replacement tie rods or in a kit. long travel such as Assault, Cognito, utv parts list mx 2000, Long Travel Industries and any other tie rod that uses a 5/8 tie rod end in its tie rod Finally, we also offer a longer clevis for the tie rods. direction Lone Star. screed carefully in order to obtain exactly thiswhich best fits your tie rod system.
Please note that this steering rack is a racing part and as such does NOT carry a warranty. Additionally, improper installation and/or maintenance. can cause premature wear.
NOTE: YOKES CANNOT BE INSTALLED INTO THE RACING BRACKET, utv parts catalog, THE YOKE MUST BE THREADED INTO THE STEERING RODS.
Racing rack and pinion for Turbo S and RS1, This support cannot be used with original tie rods. You need to run a .replacement set that uses 5/8 rod ends on each end. This racing rack is designed for RACING. Racing parts will eventually wear out and need to be rebuilt from time to time. Racing parts have no warranty.
VEHICLE INSTALLATIONPolaris RZR Turbo S
INSTALLATION Make_Polaris, Model_RZR Turbo S Vehicle Model:RZR Turbo S - 2 Seat Fox,RZR Turbo S - 4 Seat Fox,RZR Turbo S - 2 Seat Velocity,RZR Turbo S - 4 Seat Velocity|Style:Race Rack Only,Race Rack with 5/8 Threaded Clevis,Race Rack with Weld on Clevis4.65 (453 reviews)
