Radical Sportscars SR5, Owner'S Manual, Page: 5 / 17

SR5 2007 Radical Owners Manual.docx – issue 1 ‐ 22/11/07 ‐ 5 ‐ Issued: 21/09/06
CHECK ALL FLUID LEVELS
•
Check that oil is visible in the oil tank. (The exact level can only be checked once the engine is warm –
see starting procedure.)
•
Check the brake and clutch reservoir.
•
Check that coolant level is to the top of the swirl pot.
RECOMMENDED LUBRICANTS & FLUIDS
Engine oil: Silkolene Pro R 15/50 (or similar)
Gearbox: use Silkolene BOA 90LS limited ‐ slip gear oil
Master Cylinders: Silkolene Prorace 2000 brake fluid (DOT 4 or similar)
Fuel: 98 octane unleaded or 100 octane race fuel (CAM 2 or 108 octane in the US)
Coolant: 50/50 mixture of water/anti ‐ freeze
STARTING THE ENGINE
1. Always start the engine with a laptop connected to the ECU so that all engine parameters can be
monitored during warm ‐ up.
2. Check oil is visible in oil tank. Check water level in swirl pot. The actual oil level does not matter at this
point, because an amount of oil has drained back into the engine – this returns to the tank when the
engine is started.
3. Crank engine to get oil pressure with ignition coils disconnected.
4. Connect coils and turn ignition on. Start engine with no throttle, let engine idle at approximately 2,000 ‐
3,000rpm. Check oil pressure is at 60psi minimum.
5. When engine water temperature reaches 50°C, rev engine several times to over 3,000rpm and turn off.
6. Immediately check oil level with dip stick.
RESTARTING PROCEDURE
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.