Eccentric Housing... 5 Fixed Centre Housing... 5 Housing Extensions... 6 Steering Speed... 6 End Joints... 7 Adaptors Clamps Gaiters...

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2 CONTE NTS Foreword... 3 Bespoke Standard Manual Steering Rack... 4 Eccentric Housing... 5 Fixed Centre Housing... 5 Housing Extensions... 6 Steering Speed... 6 End Joints... 7 Adaptors Clamps Gaiters OEM Replacement Standard Racks Lotus Elise/ Vauxhall Vx220 / Opel Speedster Alternative Manual Steering Solutions Manual Steering Racks Bevel Box T-Type Steering Rack Case Study - The 1000MPH Steering Rack FAQ Page 2 of 18

3 FOREWORD With more than 30 years experience in the design and supply of bespoke steering solutions Titan Motorsport are market leaders in manual steering solutions. A wide range of solutions are possible and each design is unique to the customer. Titan representatives will work with the customer to create a unique drawing and specification. Once the specification is agreed then machining of the cast housing, rack bar and other detail can start. In addition to manual steering solutions Titan also off electronic power assistance in various configurations column power assistance and rack assistance. Titan will work with the customer to design a bespoke steering solution to suit the customer requirement. OEM steering solutions are supported through to aftermarket with rebuild and service options. Spare parts are stocked to allow rebuild shops to utilise the wide range of spares Titan carry for steering solutions. Page 3 of 18

4 CUSTOMISABLE MANUAL STEERING RACK Using standard components, we can create bespoke solutions to suit your application. Other material can be used on request, for example magnesium, for the housing. In selecting a steering solution the customer needs to make some of the following key decisions; 1. Eccentric or fixed pinion (ratio interchangeable or not) 2. Pinion location centred or offset (single seater or clubman s style) 3. Housing Extensions 4. Steering speed/ratio (mm of rack bar per column rev) 5. End joint options (clevis, compact or dauphine) 6. Gaiters 7. Clamps As every steering rack, is either completely bespoke or using standard components, the price heavily depends on design requirement. Please contact our sales team for more information. Care should be taken to understand orientation for steering systems where the steering rack is in front of the king pin or behind the king pin of the uprights this will affect whether the pinion is above or below the rack bar. Page 4 of 18

5 ECCENTRI C HOUS ING In this design the pinion is held in an eccentric housing which is adjustable. This means the pinion could be changed for a different type in the future for example if the customer wants to change the ratio (speed) of the rack using the pinion only (the rack bar will carry over). This makes the eccentric housing perfect for car development or a change in driving style or application. Titan Motorsport have 2 casting types to allow different pinion locations centred and offset, so deciding how far to one side your pinion needs to be will affect the original casting selection. FIXED CENTRE HO USING A more cost effective option is to select a fixed centre housing which is machined to accept one pinion. The downside of a fixed centre housing is the pinion and rack cannot be exchanged for a different combination. Titan Motorsport have 2 casting types to allow different pinion locations centred and offset, so deciding how far to one side your pinion needs to be will affect the original casting selection. Page 5 of 18

6 HOUSING EXTENSIONS If you require a longer housing on one side for example then extensions of 250mm, 350mm or 400mm can be included in the design. STEERIN G SPEED The following range of standard pinions and matching steering bars are available: Steering Bar Diametrical Pitch Description Pinion Teeth Travel (mm/rev) Special order Special order Special order Special order Special order Special order Some combinations are shown as special order please contact Titan Motorsport for more details and suitability. To measure you existing solution it will be necessary to measure how far the end joint will move for exactly one revolution of the pinion. How fast the wheels turn will then depend on geometry at the outboard end and how far from the king pin pivot the arm is. Page 6 of 18

7 END JOINTS COM PACT JOI NT They are generally recommended for use on lightweight vehicles such as single seaters and are available with different threads. If not specified, the thread is right handed. Description Part n MF8 x 1.0 MF8 x 1.0 LH M8 x 1.25 MF10 x 1.25 MF10 x 1.25 LH A A3 A A3 A A3 A A3 A A3 5/16-24 UNF A A3 5/16-24 UNF LH A A3 3/8-24 UNF A A3 3/8 24 UNF LH A A3 Page 7 of 18

8 DAUPHI NE JOINT Dauphine end joint are the all-purpose end type and are used on all vehicle. If required, an extension can be fitted to increase the pivot length. Different thread are available as standard; if not specified, the thread is right handed. Description Part n MF8 x 1.0 MF10 x 1.25 MF12 x 1.5 MF12 x 1.5 LH A A3 A A3 A A3 A A3 5/16-24 UNF A A3 3/8-24 UNF A A3 7/16-24 UNF A A3 Page 8 of 18

9 TITAN TYPE JOINT It is the most robust end joint produced by Titan and so make it suitable for road cars, saloon racing and off road vehicle. Description Part n 5/16-24 UNF A A3 3/8-24 UNF A A3 7/16-24 UNF A A3 Page 9 of 18

10 CLE VI S If needed, clevises can be added to the steering rack bar. Our standard clevis is: C AT If these dimensions don t suit your application, we can manufacture clevises to your specifications. FLAT E ND S In addition to end joints, the rack bar itself can be machined to you specifications. A common end is flatted ends. Page 10 of 18

11 ADAPTORS Adaptors to suit the spline supplied on the pinion, which is 9/16 with 36 serrations. Description Part n Ø3/4 / 18.30mm to 19.05mm Ø5/8 / 15.1mm to 15.9mm Ø3/4 No bolt Ø5/8 No bolt A A3 A A3 A AT A AT Page 11 of 18

12 CLAM PS Along our standard steering rack, we manufacture clamps to bolt the steering rack to the chassis of the car. Description Part n 36mm Clamp 38mm Clamp A A2 A A2 Page 12 of 18

13 GAITERS In order to protect you steering, gaiters can be added to it. It will ensure a longer operation while keeping its performance. OEM REPLACEMENT STANDARD RACKS LOTUS ELISE/ VAUXHA LL VX220 / OPE L SPEEDST ER Titan Motorsport manufactured and supplied steering racks for Lotus of superior quality. These racks are available through Titan Motorsport directly and fit directly into the OEM car with no modifications. The standard rack is 2.75 turns lock to lock but a quicker 2.5 turns lock to lock is also available. A rebuild service is offered for these racks and a wide range of spare parts are stocked to allow customer rebuilds. Description Part n 2.75 Turns RHD A A Turns LHD A A1 2.5 Turns Quick RHD A A1 2.5 Turns Quick LHD A A1 Page 13 of 18

14 ALTERNATIVE MANUAL STEERING SOLUTIONS MANUAL STEERING RA CK S A complete bespoke steering rack can be designed and manufactured if your needs don t fit into our customisable range, for example the pinion can be angled to the housing if needed. Housings can be machined from billet aluminium but other material such as magnesium can be used. Single ended steering racks, internal components only and other special constructions are always considered and undertaken. BEVE L BOX Available as part of a steering solution or individually. Page 14 of 18

15 T-TYPE STEERING RA CK The T-type steering rack is designed specifically for single seater race car and can be made either from casting or using billet material. Here a bevel gear and component form extension housings allow different packaging installations. Page 15 of 18

16 CASE STUDY - THE 1000MPH STEERING RACK Titan was approached in April 2012 by the Bloodhound project to design and manufacture a steering system for their land speed record vehicle, with which they aim to achieve 1,000 mph. Titan manufacture steering racks for a wide range of vehicles but the load requirements, environmental conditions and space constraints meant that for Bloodhound, a more unconventional system was required. The steering requirements for the Bloodhound land speed record car are unusual as we have a 30:1 steering ratio and a steering lock of 5 degrees, which required us to have a bespoke steering rack commented Brian Coombs, Engineering Lead Mechanical Design of Bloodhound. As co-operating closely with the project engineers was a necessity, Titan utilised the latest 3D CAD technology to share and develop design concepts in a collaborative environment. One of the most crucial aspects in the design of the steering rack for this vehicle is the extreme loads the system will be subjected to. Detailed finite element analysis was utilised to design the housing, rack bar and bracket to ensure all components within the steering system are able to endure the high loads required. The environmental conditions Bloodhound will experience are vastly different than those encountered by a car used in race or road scenarios. Therefore, considerable design consideration was given to ensuring that the rack is sealed off to avoid its operation being affected by any environmental elements. The third important design consideration involved the vehicle s highly aerodynamic nature. The steering rack design was complicated significantly by the lack of available space. The Titan designers managed to overcome this issue by devising an innovative system which allowed the pickup points for the track rods to be inboard of the ends of the rack bar and forward of one of the bulkheads whilst keeping the rack behind the bulkhead. Having successfully designed the system, Titan was then relied upon to ensure that all components were manufactured and assembled within the required time frame. Titan was the perfect company to help us with this design challenge, which they then manufactured and supplied to us very quickly said Brian. Bloodhound recently took the on-schedule delivery of the system for testing, ahead of a possible land speed world record attempt in Page 16 of 18

17 FAQ Question 1 Approximately how much will a custom steering rack cost? Custom racks start at about 500 and can exceed 1000 with some expensive options and machining details. Question 2 How quickly can a custom steering rack be made? The target is 3 weeks from point of order and sign off of the engineering drawing. Question 3 What is the drawing charge? This is charge Titan collect before any design drawings are made, and that drawing and spec for the steering is then owned by the customer Question 4 My rack needs servicing is this possible? Titan stock a full set of spare parts for steering racks, including service items. Titan also offer a rebuild service for racks if you would like to send the rack to Titan. Question 5 I like the sound of power steering - can you help? Titan offer a bolt on column assist electric power assist unit that is compatible with virtually all the manual racks supplied. Alternatively Titan can design a solution for you. Page 17 of 18

18 Titan Motorsport & Automotive Engineering Ltd Unit 3 Harley Industrial Park Paxton Hill St. Neots, Cambridgeshire PE19 6TA Page 18 of 18