Radical Sportscars SR5 Owner'S Manual Download Page 8

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

 

manufacturers

 

operating

 

instructions.

 

BEDDING

IN

 

BRAKES

 

The

 

car

 

comes

 

fitted

 

with

 

carbon

 

metallic

 

brake

 

pads.

  

To

 

bed

 

in

 

the

 

brakes

 

and

 

achieve

 

maximum

 

stopping

 

power,

 

a

 

film

 

of

 

carbon

 

must

 

be

 

transferred

 

to

 

the

 

discs

  

Gently

 

apply

 

brakes

 

6

 

to

 

8

 

times

 

at

 

medium

 

speed.

  

Increase

 

speed

 

to

 

simulate

 

race

 

conditions,

 

and

 

apply

 

brakes

 

hard

 

a

 

further

 

6

 

to

 

8

 

times.

 

Allow

 

brakes

 

to

 

cool

 

for

 

15

 

minutes.

  

Do

 

not

 

apply

 

brakes

 

whilst

 

stationary

 

during

 

cooling

 

down

 

period.

 

Use

 

only

 

Radical

 

recommended

 

brake

 

pads.

 

FUEL

 

Tuned

 

engines

 

in

 

the

 

USA

 

should

 

only

 

be

 

run

 

on

 

racing

 

fuel

 

such

 

as

 

cam2,

 

or

 

a

 

minimum

 

of

 

108

 

octane.

  

We

 

do

 

NOT

 

recommend

 

mixing

 

octane

 

boosters

 

with

 

pump

 

fuel.

 

WARNING

 

The

 

fuel

 

filter

 

will

 

require

 

changing

 

after

 

the

 

initial

 

run.

  

It

 

is

 

located

 

to

 

the

 

left

 

of

 

the

 

engine.

  

Summary of Contents for SR5

Page 1: ...SR5 Radical Sportscars SR5 Radical Owners Manual...

Page 2: ...ackday 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 g...

Page 3: ...L 8 DASHBOARD 9 REV INDICATOR 9 CENTRE LOCK HUB NUTS 9 AIR JACKS 9 GENERAL SETUP PROCEDURE FLAT PATCH 10 SUSPENSION GUIDE DRY SETUP 10 STEERING RACK SET UP PROCEDURE 11 RIDE HEIGHT 11 CORNER WEIGHTS 1...

Page 4: ...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 flui...

Page 5: ...t 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...

Page 6: ...s 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 tr...

Page 7: ...l or website www hewland com for changing gear ratios STANDARD SR5 GEAR RATIOS FOR CARS BUILT BEFORE 16 11 2007 Gear Part no Ratio 1 st CS 1608 12 35 2 917 2 nd FTR 15 33 HUB 2 200 3 rd FTR 17 31 STD...

Page 8: ...c pneumatic paddle actuated power shift system please refer to the manufacturers operating instructions BEDDING IN BRAKES The car comes fitted with carbon metallic brake pads To bed in the brakes and...

Page 9: ...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 Anodise...

Page 10: ...TUP The car is set up at the factory but the final settings should be arrived at by testing for the particular driver s preference and the particular circuit Try to check the tyre temperatures for bal...

Page 11: ...ight 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...

Page 12: ...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...

Page 13: ...SR5 DECAL DESIGN SHEET SR5 2007 Radical Owners Manual docx issue 1 22 11 07 13 Issued 21 09 06...

Page 14: ...SR5 2007 Radical Owners Manual docx issue 1 22 11 07 14 Issued 21 09 06 RACE TEST HISTORY Date Circuit Conditions Qual Posn Fastest Lap Time Result Time on Circuit...

Page 15: ...if the wing is used to push and particularly pull the car around in the pit lane garages and trucks It works perfectly to support the wing and the downforce generated in the direction intended and not...

Page 16: ...en 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 SP...

Page 17: ...sued 21 09 06 INTRAX DAMPERS SPRING CHART Part No Length mm Rate N mm Rate lbf in SP001 80 120 685 SP002 80 140 799 SP003 80 150 857 SP004 100 110 628 SP005 100 120 685 P006 100 130 742 SP007 100 140...

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