Rennsport Factory Mercedes bespoke lightened flywheel and road going clutch system
Rennsport Factory uprated Sachs Performance and Helix, 200mm, 215mm, 228mm and 240mm fast road and light competition clutch system with dual to single mass flywheel kit to suit Mercedes W201/W124/W202 – M102 M103 M104, M111, M112, M113, M113K, M117, M119, OM605, OM606 flywheel with OEM or 60-2 timing markers
£845.00 – £1,775.00
Rennsport Factory bespoke billet flywheel conversion
- Bespoke billet single or dual to single mass conversion flywheel for most Mercedes models
- Forged chromoly steel flywheel
- Usually lightened to around 7KG. OEM and diesel weights available.
- Dynamically balanced
- Various diameter road and fast road clutch options
- M102, M103, M104, M111, M112, M113, M113k, M117, M119 OEM and 60-2 timing markers available
Rennsport Factory’s single and dual to lightened single mass flywheel conversion kit is available for nearly any Mercedes engine and gearbox combination. The flywheel is CNC machined from a billet of chromoly steel bespoke to each order. These are dynamically balanced and as the timing and starter gear are machined into the flywheel the end product doesn’t require any bolts or ring gears pressed on to the flywheel. The unit comes all one piece for optimum high rpm safety. Our lightened units allow the engine to rev and respond faster when compared to OEM.
The single mass gearboxes were generally in cars up to around 1990, there after most will need our dual to single mass conversion. This is the unit needed to convert any older Mercedes to the later 716 6 speed gearboxes from slightly more modern cars as an example. A small example gearbox list can be found at the bottom of the page. Any doubts please send us your car details and we can confirm fitment.
The flywheel is available with M102, M103, M104, M111, M112, M113, M117 and M119 timing markers for early 2/3/4 prong and the later 60-2. All timing markers are left in the OEM position where possible. Each flywheel will weigh in at around 6.5-7kg and is machined to order, due to this, for an we can customise or make the flywheel to almost any specification required. If there is an engine not on our list, please contact us, we’d be interested to develop it.
The issue with converting from a dual mass to single mass flywheel is the OEM dual mass setup is designed to offer a vibration damping function in the flywheel rather than the friction disc like the older single mass setups. The clutches available for most dual mass gearboxes come with a solid hub friction which when combined with a single mass flywheel lose the damping function which makes for an easier drive and helps prolong the life of the gearbox.
Each of our clutch systems are made bespoke to our specification retaining the damping function of a friction disc from a single mass clutch set without any sacrifice in performance or longevity in the clutch or gearbox but carefully rated for the torque we have specified. We’ve seen many cheaper units prematurely fail due to the springs not being up to the stated specified torque, once compressed the hub rides on the rivets and the clutch acts as a solid unsprung unit which as it isn’t designed for this cannot hold the torque for long. For this reason, we only offer our dual to single mass flywheels as a kit with a properly specified clutch.
To get the best from any clutch system, it needs to be specified correctly for its application and within the torque rating. We have 3 categories, road, fast road, and light competition clutches. Full competition clutches are found on another listing. A smaller or lighter clutch will have a lower inertia and will therefore respond faster.
If you occasionally drive hard on the road or the car sees the odd track day we’d recommend stepping over to our fast road clutch system. This system retains a heavy duty organic or kevlar lining, both of which are less agressive on the transmission and retains a lighter engagement when compared to the cerametallic linings found in the light and full competition clutches. Our Kelvar lining will be slightly more aggressive but will hold more heat when compared to the organic.
If your vehicle is mainly a track or drift car, but you still drive it on the road occasionally, we’d recommend our light competition system. This system includes a 6 paddle clutch with cerametallic lining. 4 and 8 paddle are available on request. This lining will engage quicker and is considered better to drive hard with the main advantage being it will withstand the extra thermal input of track and competition use prolonging the life of the clutch in these situations. The downside is the quicker engagement and response can be considered more aggressive and could take some getting used to in normal road situations.
The unsprung hub options may have increased judder and is only recommended if the sprung hubs cannot withstand the torque you require.
1) 228mm OEM – 350NM.
2) 240mm OEM Sachs Cover plate with Rennsport Factory heavy duty sprung organic friction disc with increased metallic particles – 500NM.
3) 240mm OEM Sachs Cover plate and a Sachs heavy duty sprung organic friction disc with increased metallic particles – 500NM.
Fast Road – Heavy duty organic and Kevlar
1) 228mm Sachs Performance cover with Rennsport Factory sprung Kevlar lined friction disc – 450NM.
2) 228mm Sachs Performance unit and a Sachs heavy duty sprung organic friction disc with increased metallic particles – 450NM.
3) 240mm Sachs Performance cover with Rennsport Factory sprung Kevlar lined friction disc – 600NM.
4) 240mm Sachs Performance cover plate and a Sachs heavy duty sprung organic friction disc with increased metallic particles – 600NM.
5) 215mm Helix lightweight aluminium sprung hub clutch with organic lining – 500NM.
6) 240mm Sachs Performance cover with Rennsport Factory unsprung kevlar lined friction disc – 750NM.
7) 200mm Sachs Racing Aluminium unsprung twin plate organic clutch – 1122NM.
Light competition – 6 paddle cerametallic
1) 228mm Sachs Performance cover with Rennsport Factory sprung cerametallic friction disc – 550NM
2) 228mm Sachs Performance cover with Sachs sprung cerametallic friction disc – 550NM
3) 240mm Sachs Performance cover with Rennsport Factory sprung cerametallic friction disc – 650NM.
4) 240mm Sachs Performance cover plate and a sprung Sachs cerametallic friction disc – 650NM.
5) 215mm Lightweight Aluminium sprung hub clutch by Helix with cerametallic lining – 600NM.
6) 240mm Sachs performance Cover plate with Rennsport Factory unsprung friction disc and cerametallic lining – 800NM.
7) 200mm Sachs Racing Aluminium unsprung twin plate cerametallic clutch – 1665NM.
Some of the commonly sold flywheels are in stock, but due to the large range we offer the kit is usually made bespoke to order and will be 4-8 weeks to get it through the machine shop. Please send us an email if you need an ETA before ordering.
Note for the cars with the M117 or M119 engines, these have a different bell housing pattern to the standard pattern found on most other earlier models, be aware there isn’t a standard combination to suit these engines and a Mercedes gearbox without adaptation. If you select these timing markers with this flywheel we assume you’ve made your adapter plate to suit the offset you chose at ordering.
Single mass gearbox examples:
717.404 (Getrag dogleg from 190e 2.3/2.5-16)
717.435 (Early 190e 2.6/w124 300E/300CE)
Dual mass gearbox examples:
717.450 (Getrag dogleg from 300CE-24 and R129 300SL-24 M104.980)
716.XXX (all 6 speed Mercedes gearboxes 220/270CDI 180/200/230 Kompressor, and M112 V6)
Lightened Petrol 6-7KG (recommended), OEM Petrol/lightened diesel 9-10KG, OEM Diesel 14KG
Single mass flywheel, Dual to single mass conversion flywheel
OEM 2 prong M102 inc 2.3 and 2.5 16v, OEM 3 prong M103 inc 2.6 and 3.0, OEM 3 prong with magnet M104 2.8, 3.0, 3.2 and 3.6, 60-2 for aftermarket management, OM605 250D 250TD/OM606 300D 300TD 11KG, OEM 60-2 M111 200 230 Kompressor, OEM 60-2 M112 240 320 C32 AMG, OEM 60-2 M113 E430 C43 E500 E55 AMG, OEM 60-2 M113 E55 S55 Kompreessor, M117 4 prong, M119 4 prong, OEM M119 60-2
Road 228mm Sachs OEM 350NM, Road 240mm Sachs OEM/Rennsport Factory friction disc 500NM, Road 240mm Sachs OEM cover/ Sachs uprated organic friction disc 500NM, Fast Road 228mm Sachs Racing Cover/Rennsport Factory Kevlar friction disc 450NM, Fast Road 228mm Sachs Racing Cover/Sachs uprated organic friction disc 450NM, Fast Road 240mm Sachs Racing Cover/Rennsport Factory Kevlar friction disc 600NM, Fast Road 240mm Sachs Racing Cover/Sachs uprated organic friction disc 600NM, Fast Road 215mm Aluminium Helix 600NM, UNSPRUNG Fast Road 240mm Sachs Racing Cover/Rennsport Factory Kevlar friction disc 750NM, UNSPRUNG Fast road 200mm Aluminium Sachs Racing twin organic discs 1122NM, Light competition 228mm Sachs Racing Cover/Rennsport Factory cerametallic paddle friction disc 550NM, Light competition 228mm Sachs Racing Cover/uprated Sachs cerametallic paddle friction disc 550NM, Light competition 240mm Sachs Racing/Rennsport Factory cerametallic paddle friction disc 600NM, Light competition 240mm Sachs Racing Cover/Sachs cerametallic paddle friction disc 650NM, Light competition 215mm Aluminium Helix with cerametallic paddle friction disc 600NM, UNSPRUNG Light competition 240mm Sachs Racing/Rennsport Factory Cerametallic friction disc 750NM, UNSPRUNG Light competition 200mm Aluminium Sachs Racing twin Cerametallic discs 1665NM
|Mercedes||C208/A208 CLK Class 96-02|
|Mercedes||C209/A209 CLK Class 03-09|
|Mercedes||R107 SL Class 71-89|
|Mercedes||R129 SL Class 89-01|
|Mercedes||R170 SLK Class 96-04|
|Mercedes||R171 SLK Class 04-11|
|Mercedes||R230 SL Class 01-11|
|Mercedes||W116 S Class 72-80|
|Mercedes||W124/S124/C124/A124 E Class 83-95|
|Mercedes||W126/C126 S Class 80-91|
|Mercedes||W140/C140 S Class 91-99|
|Mercedes||W201 190e 83-93|
|Mercedes||W202 C Class 94-00|
|Mercedes||W203/S203 C Class 00-07|
|Mercedes||W204/S204 C Class 08-13|
|Mercedes||W210/S210 E Class 95-03|
|Mercedes||W211/S211 E Class 03-09|
|Mercedes||W218 CLS Class 04-10|
|Mercedes||W219 CLS Class 04-10|
|Mercedes||W220 S Class 99-05|
|Mercedes||W221 S Class 05-13|