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Related Manuals for Radical Sportscars SR5
Summary of Contents for Radical Sportscars SR5
- Page 1 SR5 Radical Owners Manual Radical Sportscars SR5 ...
- Page 2 Radical Motorsport Ltd 24 Ivatt Way Business Park Westwood Peterborough PE3 7PG info@RadicalSportscars.com www.RadicalSportscars.com Dear Radical Owner Many thanks for purchasing a Radical SR5 sportscar. Whether you intend running your car at trackdays, entering it in sprints and hillclimbs, or competing in the wide range of circuit racing available to you, one thing remains constant. A well‐maintained and prepared sportscar will ensure that you get the maximum performance and reliability that Radical is renowned for the world over. Radicals have covered hundreds of thousands of trackday, test day and racing miles. This manual highlights many of the lessons and tips we have learned. Do not start your car until you have read it. Your Radical has been designed with one objective – to give you the ultimate driving pleasure! Happy driving Mick Hyde Mick Hyde For Radical Motorsport Ltd Sales T: +44 (0) 1733 331616 F: +44 (0) 1733 264959 sales@RadicalSportscars.com Technical Support / Parts T: +44 (0) 1733 331717 F: +44 (0) 1733 264959 technical@RadicalSportscars.com ...
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Page 3: Table Of Contents
ECAL ESIGN HEET ................................ 14 ACE EST ISTORY ‘L ’ – ............................ 15 OMPONENT IFING HART ............................ 16 NTRAX AMPER NFORMATION 3 way adjustable damper Information ........................ 16 Compression adjustment: ............................ 16 Rebound adjustment: .............................. 16 InTrax dampers ‐ spring chart ........................... 17 SR5 2007 Radical Owners Manual.docx – issue 1 ‐ 22/11/07 ‐ 3 ‐ Issued: 21/09/06 ... -
Page 4: Preparation For Shake -Down
Warning Do not rev the engine more than 3,000rpm (one yellow light on the dash) until the oil is warm. When cold the oil can run at 100psi, which may damage the oil cooler. In the brake and clutch master cylinders, use only high temperature racing brake fluid. The engine cooling system uses a 50:50 anti‐freeze / water mixture. The level should be to the top of the swirl pot. DRIVING POSITION The combined driver and passenger seat may be adjusted forward and backward to suit individual drivers. Please note: The seat belt crutch strap will also need adjusting. The position of the pedals can also be adjusted by a) adjusting the pedal face, b) adjusting the pedal angle and c) by moving the pedal pivot shaft. Please note that c) will require changing the master cylinder push‐ rods. If your SR5 is fitted with a Powertec PS2 pneumatic power shifter, please refer to the separate manufacturers operating instructions. SR5 2007 Radical Owners Manual.docx – issue 1 ‐ 22/11/07 ‐ 4 ‐ Issued: 21/09/06 ... -
Page 5: Check All Fluid Levels
1. Ideally, the engine is started 45 minutes prior to going on track. Turn off when the water temp. reaches 85°C and allow heat to soak into the engine. Restart 10 minutes before going on track and get the temperature to 75°C. 2. The oil level should be checked every hour of running and it should be topped up to the level indicated above. RUNNING THE ENGINE Do not run the engine under load if:‐ a) oil temperature is below 60°C b) oil temperature is above 120°C c) water temperature is below 60°C d) water temperature is above 100°C e) oil pressure when up to temperature at 4,000rpm is under 50psi. SR5 2007 Radical Owners Manual.docx – issue 1 ‐ 22/11/07 ‐ 5 ‐ Issued: 21/09/06 ... - Page 6 The oil pressure when the engine is started from cold should run at 90psi at 4,000rpm. When up to temperature the oil pressure should read 60psi at 4,000rpm. Maximum engine revs:‐ 8,600 rpm The rev limiter is set to 8,600 rpm. Persistent use of the rev limiter will damage the engine. The engine oil and filter should be changed every six (6) hours of running. Do not attempt to adjust slow running speed, or any other engine parameter without a laptop connected to the ECU running the customer version of LIFE Systems software (available from Powertec). It is important to log the number of hours the engine is run. The engine should run for no more than 30 racing hours before being returned to the factory for a rebuild. If the engine is stressed less (i.e. trackday or road use) the car should be returned to the factory every 30 hours for a rolling road dynamometer test. Engines which are not raced, regularly cover 90 hours without requiring attention (providing they are not over‐revved. Particular care and attention should be paid to the down‐shifts). Note: In the event that the engine stalls, the ignition master switch must be turned off and then on again (after a two second delay) to reset the ECU. Figure 2 Radical SR5 at Magny Cours SR5 2007 Radical Owners Manual.docx – issue 1 ‐ 22/11/07 ‐ 6 ‐ Issued: 21/09/06 ...
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Page 7: Gearbox
GEARING Ratios in the SR5 are not controlled, so can an may be changed to suit different circuits. The ‘short’ set listed below is an option for tighter tracks (i.e. Brands Hatch). A gear ratio chart for calculating suitable ... -
Page 8: Flat-Shift
SEQUENTIAL GEAR CHANGE – HEWLAND JFR The SR5 is supplied with the gear selection set to “pull lever back to shift up the box” and “push lever forward to shift down the box”. To engage neutral from 1st gear lift the lever gently on the right hand side of the seat and push the gear lever forward once, to find reverse push forward again with the small lever still lifted. The order is R, N, 1, 2, 3, 4, 5, 6. GEARBOX OIL With oil cooler: 2.2 litres Without oil cooler 1.7 litres FLAT‐SHIFT If your SR5 is fitted with a flat‐shift system, the clutch need not be operated going up the gearbox. PNEUMATIC POWER SHIFT If your SR5 is fitted with a Powertec pneumatic paddle‐actuated power shift system, please refer to the ... -
Page 9: Dashboard
DASHBOARD REV INDICATOR Yellow 3 ‐ 4 – 5, Green 6 ‐ 7 – 8, Red 8.2 – 8.5 * Temperatures are not displayed until the fluids reach 45°C. When ignition is switched on, the dash runs through a test display. High temperatures or low pressures will trigger a large warning light adjacent to the gauge it is indicating. With ignition on, press the data button to show maximum revs to date (last two digits not shown). The maximum recorded revs display may be reset by the factory, or by an approved Radical distributor. CENTRE‐LOCK HUB NUTS Anodised RED for left‐hand side, Anodised BLUE for right‐hand side. Torque Setting – 200 ft lbs AIR JACKS Cars fitted with air jacks are supplied with an air lance, which is inserted into a valve at the rear of the car. The lance requires connection to a bottled air supply, and the pressure should be regulated to 250‐300lb SR5 2007 Radical Owners Manual.docx – issue 1 ‐ 22/11/07 ‐ 9 ‐ Issued: 21/09/06 ... -
Page 10: General Setup Procedure - Flat Patch
Tyre pressure (Dunlop): Hot: 24‐28psi Spring rate: 7” × 350lb Cold: 16‐18psi Camber: ‐2° to ‐3° Spring rate: 7” × 300lb Toe in: 2mm ‐ 3mm Camber: ‐2½° to ‐3½° Nik‐link: medium 2mm ‐ 3mm Toe in: overall Nik‐link: Medium Note: Measure the ride height at front of the chassis and at the seat back bulkhead, (below rollover bar) with the driver seated and three gallons of fuel in the tank. SR5 2007 Radical Owners Manual.docx – issue 1 ‐ 22/11/07 ‐ 10 ‐ Issued: 21/09/06 ... -
Page 11: Steering Rack Setu Procedure
4. Tighten the top 16mm Allen screw until just tight and back off one Allen key flat, tighten the lock nut. 5. The rack in now set correctly and should move freely from side to side with no tight spots. RIDE HEIGHT The ride height may need increasing when carrying a passenger. CORNER WEIGHTS For maximum performance, the Radical should have the corner weights accurately set with the driver in situ. The procedure is as follows:‐ Position the car on a flat, horizontal surface. Equalise all tyre pressures to hot setting, say 28 psi. Take all readings with driver in car, or equivalent weight in the seat. Remove bolt from one end of the front and rear Nik‐Link, and adjust shocks to full soft. Set ride height front & rear, then camber front & rear and finally toe‐in front & rear. Put car on weight scales, and set corner weights by adjusting spring platforms*. It is usually difficult to achieve identical settings on each corner to within 10%. Ensure that the sum of the diagonal weights are as near as possible. * When using pre‐load, adjustable push rods are used to set ride height and corner weights Re‐check ride height and splitter height with the body on. Lock spring platforms. Refit Nik‐Links, rear anti‐roll bars, reset shocks, remove driver or similar weight, and reduce tyre pressures. You are now ready to “rock & roll”. SR5 2007 Radical Owners Manual.docx – issue 1 ‐ 22/11/07 ‐ 11 ‐ Issued: 21/09/06 ... -
Page 12: Brake Bias Settings
If you accidentally down‐change instead of an up‐change you are less likely to over‐rev the engine. If you do over‐rev the engine, make your way slowly back to the pits and check the yellow recall button on the dash. If you have revved the engine over 9,000rpm, switch off and return the engine to Powertec for inspection immediately. Ensure that the tyres and brakes are fully up to temperature before pushing hard. The Radical SR5 has phenomenal braking performance and will carry considerable speed into a corner. Practice braking hard, but come off the brakes smoothly and concentrate on carrying speed into a corner. On exiting the corner, the throttle should be fed in progressively. Driving smoothly is the secret to quick lap times. One final tip: ... -
Page 13: Sr5 Decal Design Sheet
SR5 DECAL DESIGN SHEET SR5 2007 Radical Owners Manual.docx – issue 1 ‐ 22/11/07 ‐ 13 ‐ Issued: 21/09/06 ... -
Page 14: Race / Test History
: : : : : SR5 2007 Radical Owners Manual.docx – issue 1 ‐ 22/11/07 ‐ 14 ‐ Issued: 21/09/06 ... -
Page 15: Component 'Lifing ' Chart
Inspect/replace Rear Upright 50 Replace Rear Hub 50 Replace Rear Wishbone 60 Inspect/replace Drive Shafts 30 Replace Calipers 60 Rebuild Brake Discs 10 Inspect/replace Shock Absorbers 60 Rebuild Steering Rack 50 Inspect/rebuild or replace Brake Master Cylinder 60 Inspect/replace Wing Support Stays 60 Inspect/replace Fuel Tank remove & inspect annually If you own and drive the car, but do not prepare or run it yourself, it is your responsibility to be sure that the engineer who does has a copy of this manual, and has read it. SR5 2007 Radical Owners Manual.docx – issue 1 ‐ 22/11/07 ‐ 15 ‐ Issued: 21/09/06 ... -
Page 16: Intrax Damper Information
(2) Small 4 mm screw:‐ Low speed compression, 18 clicks turn clockwise for more damping. (3) Black adjuster on spindle eye: Rebound, turn clockwise for more damping. (3) (1) (2) COMPRESSION ADJUSTMENT: HIGH SPEED: 1. It controls fast corners. When damping rate is increased the car feels like it has got stronger springs. 2. Increase step‐by‐step 5 clicks at the time, the fine‐tuning by one click. 3. Rain: open +/‐ 10 clicks from best dry setting. LOW SPEED: 4. It controls roll in the car and will help to make the tyres working when there is less grip. 5. Increase step‐by‐step 1‐2 clicks at the time. 6. Rain: open +/‐ 2 clicks from best dry setting. REBOUND ADJUSTMENT: REBOUND: Front: By finding the right set‐up you can dial out under steer, during testing 5 clicks at the time. Rear: For maximum traction, don’t go over the top, keep the rear moving. SR5 2007 Radical Owners Manual.docx – issue 1 ‐ 22/11/07 ‐ 16 ‐ Issued: 21/09/06 ... -
Page 17: Intrax Dampers - Spring Chart
SP002 80 140 799 SP003 80 150 857 SP004 100 110 628 SP005 100 120 685 P006 100 130 742 SP007 100 140 799 SP008 100 150 857 SP009 100 160 914 SP010 100 170 971 SR5 2007 Radical Owners Manual.docx – issue 1 ‐ 22/11/07 ‐ 17 ‐ Issued: 21/09/06 ...