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Moton Motorsports Shocks / Struts

You can have the same winning advantage that so many sportscar and GT Pro racing teams have Many Championships and Races were won on Moton products the last several years. Ready to bolt on sets are available for many applications and most of them are in stock. We are able to develop and manufacture dampers for any application in a short period of time without compromises. All we require is some basic information about the car you are developing and some input about required physical dimensions etc. Order forms with required data are downloadable in our customer support section on the main menu.

Moton is specialized in Custom built dampers and struts; general delivery time for custom built coil-overs is 2-3 weeks and for McPherson struts 3-4 weeks. Even on our ready to bolt on applications it is still possible to personalize them to your specific requirements, like changing hose lengths, droop, valving or adding quick disconnects for easy install of the remote canisters. Motorsport dampers are available as 2-way, 3-way or 4-way adjustable.


Moton Double-Adjustable Dampers

The Double Adjustable Moton Damper features 15 positions of bump adjustment on the remote reservoir and 15 positions in rebound on top of the piston rod. Each adjustment done to the damper (each click) is very noticeable to the driver. Our dampers are designed to perform at low speeds as well as high speed velocities which gives you total control regardless of the conditions. The reservoir is connected to the damper by a high pressure hose and is equipped with swivel banjo’s to easy for easy installation of the canisters in the car regardless of the position.

The damper bodies are produced from the highest quality steel or aluminium. The shafts are induction hardened and chrome plated, the material used is C45 or CrMo for strut applications. The canister pressure can be varied between 6-20 bar (100-350 PSI) to help support the car in high speed cornering with soft springs.

Complete double adjustable sets are available for many applications or we can custom build struts and dampers to suit your requirements.


Moton Triple-Adjustable Dampers

The Triple Adjustable Moton Damper features 15 positions of high speed bump adjustment and 15 positions in rebound on top of the piston rod. The triple adjustable damper features an additional 6 positions of low speed bump adjustment. The low speed bump adjuster is very effective in helping to control body roll while adding to turn in and is effective in controlling pitch and squat.

The reservoir is connected to the damper by a high pressure hose and is equipped with swivel banjo’s for easy installation of the canisters in the car regardless of the position. The damper bodies are produced from the highest quality steel or aluminium.

The shafts are induction hardened and chrome plated, the material used is C45 or CrMo for strut applications. The canister pressure can be varied between 6-20 bar (100-350 PSI) to help support the car in high speed cornering with soft springs.

Complete triple adjustable sets are available for many applications or we can custom build struts and dampers to suit your requirements.

Moton Motorsports triple-adjustable pricing sheet


Moton Four-Way Adjustable Dampers

The 4-way Adjustable Moton Damper features 15 positions of high speed bump adjustment, 6 positions of low speed bump adjustment, 15 positions of high speed rebound adjustment and 10 positions of low speed rebound adjustment. The low speed bump adjuster is very effective in helping to control body roll while adding to turn in and is effective in controlling pitch and squat.

The independent rebound adjusters give an even larger range of adjustment possibilities than the Triple Adjustable Moton Damper. The reservoir is connected to the damper by a high pressure hose and is equipped with swivel banjo’s for easy installation of the canisters in the car regardless of the position. The damper bodies are produced from the highest quality steel or aluminium.
 
The shafts are induction hardened and chrome plated, the material used is C45 or CrMo for strut applications. The canister pressure can be varied between 6-20 bar (100-350 PSI) to help support the car in high speed cornering with soft springs. Complete 4-Way adjustable sets are available for many applications or we can custom build struts and dampers to suit your requirements.

Moton Motorsports 4-way adjustable pricing sheet

Feature Advantage Benefit
Monotube design
with seperate reservoir

Better heat distribution, large main piston for quick response Easy to adjust, bump and rebound adjusters can be placed in same spot for quick adjustments without taking the wheels off car. Easy to change springs especially on McPherson struts.
Large piston rod diameter for more fluid displacement Much better low speed damper control Damper responds to the slightest movement of the suspension. Each single click on the adjusters is noticeable to the driver
Adjustable Gas Pressure Added lifting force, able to run softer springs without bump stops or packers Stabilizes platform when cornering, pitch and squat control without the use of stiff springs. Smoother over bumps and more traction due to softer springs Adjustable between (6-20 bar) (100 – 350 psi)
Blow off valve system Blows off at big impacts Very smooth over Curb stones, car is easy to control. Saves drive shafts, wheel bearings etc.
Rebound adjuster closing off Precise and repeatable Each change is noticeable to the driver when adjusting orifices the rebound adjuster
Non preloaded valve stack Smoother response without becoming harsh Better tyre wear, tyre temperatures and traction
General Design No revalves needed due to large adjustment range, proven reliability, easy to work with, very responsive to any adjustment change, no service and oil change needed during racing season Cost effective and more time for other issues during racing weekends

2-way adjustable

Separate Bump (15 positions) and Rebound adjustment range (16 pos.) Very easy to work with, each click noticeable to the driver, repeatable, revalvable, wide adjustment range
3-way adjustable Extra Low speed bump adjustable
HSB (15 pos.)
LSB (6 pos.) Rebound (16 pos.)
Separate control in Low speed bump for Turn-in, squat en pitch control
4-way adjustable Extra Low Speed rebound adj.
HSB (15 pos.) LSB (6 pos.)
HSR (15 pos.) LSR (10 pos.)
Separate control in Low speed rebound and High speed rebound settings



Design Philosophy

Most modern race cars rely on ground effects or downforce to generate higher cornering speeds. The suspension is expected to use very little travel in order to keep the aerodynamic changes to a minimum.

With the design of the MOTON damper using a 22 mm O.D. piston rod it provides maximum fluid displacement at small suspension travels, responding to the slightest movements of the suspension. More fluid displacement caused by the cross section of the 22 mm O.D. piston rod combined with the gas pressure in the reservoir, results in an added lifting force on each corner of the car to support the main spring without increasing the spring rate.

The gas pressure can be varied between 6 and 20 bar giving the track engineer an extra adjustable medium. 22 mm O.D. Piston rod for more fluid displacement Since suspension travels are so small on most modern race cars the MOTON damper compensates for less travel by increasing the diameter of the piston rod, and thus the displacement of fluid.

Most damper manufacturers are using a piston rod O.D. of 12 or 14 mm. Using the 22 mm O.D. rod results in about 300 % more fluid displacement then usually, making it much more responsive at low damping velocities. An other advantage of having more fluid displacement is the possibility to combine it with a valve stack which is non pre-loaded and still able to create enough low speed damping forces. Using a non pre-loaded valve stack results in better tyre wear, tyre temperatures and traction.

The MOTON piston rods are made from high carbon steel (Chrome Moly for McPherson struts) chrome plated and induction hardened. Gas Pressure for an added lifting force In other damper designs the function of gas pressure is to keep the fluid compressed and to prevent it from cavitations. In the MOTON damper it serves a different function. When the gas pressure (nitrogen) in the adjustable reservoir works against the cross section of the piston rod it results in an added lifting force on each corner of the car. This lifting force is offering a support to the main spring.

The MOTON damper is able to carry part of the weight of the car, permitting the use of softer main springs. The gas pressure in the reservoir can be varied between 6 and 20 bar. It is a very effective tool for pitch and squad control and for stabilizing the total platform of the car during cornering. The gas pressure makes it also possible to run the dampers without any bump stops or packers.


External Reservoir with blow off valve system

The external reservoir contains the gas volume and fluid reserve. Located on the top is the adjustable blow off valving system and non return valve. The blow off valve is designed to handle the large fluid displacement caused by the 22 mm O.D. Piston rod and responds to the smallest movements of the rod. The blow off valve is spring loaded with Belleville washers and by turning on the adjuster knob preload is forced on the blow off valve. Increasing the preload on the blow off valve creates higher compression damping. It can be adjusted into 15 positions. Using different sized Belleville washers varies the total adjustment range in compression.


Rebound Adjuster closing off precisely drilled orifices

The rebound adjuster is located on top of the piston rod. Turning on the brass nut closes or opens precisely drilled orifices one by one below the piston. Closing off pre-measured orifices is a secure way of keeping the adjustments equal between dampers on the right and left side of the car. The rebound can be adjusted into 16 positions. The bleed through the orifices will vary between 0 square mm (all orifices closed) and 7,85 square mm (all orifices open).


Rebound and compression double valve stack, non pre-loaded

The rebound and compression stack are non pre-loaded and build up in two phases. The primary stack consists of a main valve with a diameter of 34 mm (rebound) and 36 mm (compression), supported by valves decreasing in diameter according to the damper force requirements. This is the low velocity area of the damping, The secondary stack is separated from the primary stack by a small shim of 0,15 mm thickness and a diameter of 21 mm. The secondary stack limits the opening of the primary stack. So by changing the composition of the valves damping forces can be increased or decreased. The secondary stack is the mid- and high speed area of the damping.

Moton Motorsports triple-adjustable pricing sheet

Moton Motorsports 4-way adjustable pricing sheet

 
To order, or to discuss your specific requirements please call Racer's Edge at 865-862-5262.