Ohlins S2000 Owners Guide
Owners Manual
Öhlins car shock absorber for Honda S2000
Including:
Safety
How the
shocks works
Setting up
the car
Making
adjustment
Trouble
shooting
Inspection and
maintenance
1
Safety signals
Important information concerning safety is
distinguished in this manual by the
following notations:
The Safety alert symbol means:
Caution! Your safety is involved.
WARNING!
Failure to follow warning instructions
could result in severe or fatal injury
to anyone working with, inspecting or
using the suspension, or to bystanders.
CAUTION!
Caution indicates that special precautions must be taken to avoid damage to the suspension.
NOTE!
This indicates information that is of
importance with regard to procedures.
© Öhlins Racing AB.
All rights reserved.
Any reprinting or unauthorized use
without the written permission of
Öhlins Racing AB is prohibited.
Printed in Sweden.
Introduction
All of Öhlins advanced suspension products are
adapted to the brand and model. This means that
length, travel springaction and damping characteristics, are tested individually just for the
motorcycle that you have decided to fit with
Öhlins suspension.
Before installation
Öhlins Racing AB can not be held responsible for
any damage whatsoever to shock absorber or
vehicle, or injury to persons, if the instructions for
fitting and maintenance are not followed exactly.
Similarly, the warranty will become null and void
if the instructions are not adhered to.
Contents
Safety signals ................................................ 2
Introduction ................................................... 3
Design ........................................................... 3
When you are driving ..................................... 4
External adjusters .......................................... 6
Recommended settings ................................ 6
Setting up your car ........................................ 6
Making adjustments ...................................... 7
Maintenance, inspection. ............................... 7
Trouble shooting ............................................ 7
WARNING!
1. Installing a shock absorber, that is not
approved by the vehicle manufacturer, may
affect the stability of your vehicle. Öhlins
Racing AB cannot be held responsible for
any personal injury or damage whatsoever
that may occur after fitting the shock
absorber. Contact an Öhlins dealer or other
qualified person for advice.
2. Please study and make certain that you
fully understand all the mounting instructions
and the owners manuals before handling this
shock absorber kit. If you have any questions
regarding proper installation procedures,
contact an Öhlins dealer or other qualified
person.
3. The vehicle service manual must be
referred to when installing the Öhlins shock
absorber
NOTE
Öhlins products are subject to continual improvement and development. Consequently, although
these instructions include the most up-to-date
information available at the time of printing, there
may be minor differences between your suspension and this manual. Please consult your Öhlins
dealer if you have any questions with regard to
the contents of the manual.
2
Introduction
Öhlins Racing congratulates you on your choice
of shock absorbers for your vehicle.
Your new Öhlins high performance shock
absorbers are developed from experience gained
during years of successful co-operation with the
World Championship winning teams.
Total shock absorber length, spring travel and
damping forces are developed just for your car.
The design and the settings are consequently the
results of extensive testing and no guesswork!
All Öhlins shock absorbers are designed with just
one aim; to win races.
To design a winner you need a concept starting
with a unique know-how. You add engineering
skill, precision and the best materials available.
The result is quality, endurance and winning
performance.
Our shock absorbers are used by the winning
teams in World Rallying, Touring Cars, CART and
by several top teams in Formula Atlantic, Formula
3, Formula Ford, NASCAR, Late Model and in
Truck Racing, etc.
Öhlins suspensions have dominated the motorcycle and the car racing scene for several years
and have captured over 80 World Championship
titles!
A network of authorised Öhlins service centres
around the world, with specially trained mechanics,
can help you with personally tuned settings, service,
repairs and spare parts.
Design
Öhlins car shock absorbers are based on Öhlins
successful application of the ”de Carbon”
concept. In short, that means that the damping
oil is put under gas pressure, and separated from
the gas by a floating piston.
The de Carbon concept has many advantages.
It prevents the risk of cavitation, that can wear
out internal components and cause inconsistent
damping. It eliminates aeration of the damping
oil, which also causes inconsistent damping.
It improves the cooling, because the oil is in direct
contact with the outer tubing. It gives more
consistent damping, regardless of the shock
absorber’s working temperature, and it makes the
shock absorber last longer.
The shock absorber reservoir, connected directly
to the shock absorber body is in fact an ”extension” of the main body which contributes to the
improved cooling. The reservoir contains the
floating piston and the gas that pressurises the
damping oil. The oil is forced through a base plate
reinforcing the damping.
At low shaft speeds the damping oil is forced
through an adjustable bleed valve in the main
piston. The valve affects mainly rebound damping
and has only a small effect on compression
damping.
The adjuster is connected to the valve via an
aluminium shaft, that runs inside the piston shaft.
When the temperature in the shock increases the
aluminium shaft extends, thereby closing the
bleed valve gradually.
This diminishes the influence of the oil viscosity
changes due to temperature, keeping the flow
through the valve virtually the same, regardless
of temperature.
At higher shaft speeds the damping forces are
primarily controlled by the main piston and its
compression- and rebound shim stacks. By
changing the numbers, diameter, and thickness
of the shims in the stack and by using different
jets in the valves, your Öhlins shock absorbers
are tailor-made for just your car.
3
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