SR4 2006 Radical Owners Manual.docx
–
issue
2
‐
10
‐
Issued:
21/09/06
Driving Technique
If you are unfamiliar with a sequential shift car, it is recommended that you change gear using the clutch
when going both up and down the gearbox. Once you have become familiar with the technique,
changing gear going up the box can be achieved by lifting the throttle slightly and simultaneously
‘snicking’ the gear in, without depressing the clutch. On down-changes it is imperative the driver
depresses the clutch and raises the engine speed before engaging the gear. Smooth gear changes can
be best achieved by using the ‘heel and toe technique’. Only change down one gear at a time.
As with any dog-engagement gearbox, aggressive gearchanges will damage the gear dogs which will
result in gear engagement problems. Only use a maximum of 7,000–8,000rpm while getting used to
driving your SR4. 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 use the yellow data
recall button on the dash to check the maximum revs recorded. If you have revved the engine over
12,000rpm return the engine to Powertec for inspection immediately.
Ensure that the tyres and brakes are fully up to temperature before pushing hard.
The Radical SR4 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:
CHECK YOUR OIL LEVEL
!
The SR4 can pull over 2.5g when cornering. If you do not have the
correct oil level, even with a dry sump motor, you risk starving the engine of oil, with expensive
consequences.
