Preparation for Shake-Down
Before taking to the track, it is important that you carry out a thorough spanner check, paying
particular attention to all hoses, connections and suspension fixings, brake bias etc..
Check all fluid levels
The oil level on cars fitted with the standard wet sump should be
no lower
than three quarters up the
sight-glass, with the car on level ground and the
motor warm and running
. The sump is baffled and
the oil takes some time to settle.
NB: Some wet sump engines are fitted with a dip stick to aid checking oil levels.
For cars fitted with a dry sump system the oil level must be
maintained just above the top baffle in the oil tank (100mm down
from the top of the tank). This measurement should be taken
when the engine is warm and running. The sight glass in the side
of the engine should be ignored. NB – a dip stick is available to
aid checking the oil level.
Only use Radical recommended oil, i.e. Silkolene Pro 4 synthetic-
based racing oil, which is formulated to run in the integral
gearbox, and clutch as well as the engine (see running in).
Warning
Do not rev the engine more than 4,000rpm (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.
Manual Sequential Gear Change
The SR4 is usually supplied with the gear selection set to “
pull back on the gear lever to shift up the
box
” and “
push forward to shift down the box
”. By moving the gear linkage rose joint from the lower
fulcrum to the upper fulcrum in the engine bay, the gearshift direction will be reversed.
If your SR4 is fitted with a Powertec PS1 pneumatic power shifter, please refer to the separate
manufacturers operating instructions.
SR4 2006 Radical Owners Manual.docx
–
issue
2
‐
4
‐
Issued:
21/09/06
