Camshaft BMW R80 R100 344° for models with contact ignition
With a spread of 105 ° and a stroke of 7.9 mm, the 344 is a balanced racing shaft with an uncompromising center of gravity for the upper speed range. Power and torque from the speed cellar are neglected in order to achieve a full center and a lot of power and torque in the upper third of the power band. The rotational capacity is enormous, the engine is formally yawning for higher speeds. For all Café Racers who don't want to compromise or for real racers on the circuit.
We use this cam in uncompromisingly designed motors with an increased rated speed up to 9,000 rpm. The idle speed can be somewhat more unstable.
This camshaft can best be combined with our high flow valves 45mm/39mm with light 7mm shafts and our cylinder head machining with flow bench test. Due to the conversion to 1070ccm, the weakness in the lower speed range can be partly compensated again.
- More torque "above"
- A lot of top achievement
- For speeds up to 9,000 rpm
- Racer shaft with greedy rotational power
- little more mitrange power compared with 336
- Uncompromising on peak performance
- The 100 hp shaft
| BMW R80 R100 | Öffnung | Spreizung | Aö | As | Eö | Es | Hub | Hub im OT |
| R0 267.7 | 296 | 107 | 75 | 41 | 41 | 75 N | 7,3 M | 2,1 |
| Ro 240.6 | 320 | 106 | 86 | 54 | 54 | 86 N | 7,18 M | 2,7 |
| Ro 270.6 | 324 | 106 | 88 | 56 | 56 | 88 N | 7,70 M | 3,1 |
| KA 508 | 332 | 100 | 86 | 66 | 66 | 86 N | 7,68 M | 3,7 |
| Ro 227.4 | 340 | 104 | 94 | 66 | 66 | 94 N | 8,87 M | 4,1 |
| Ro 214.5 | 344 | 105 | 97 | 67 | 67 | 97 N | 7,86 M | 3,6 |
| Ro 1145.10 | 336 | 110 | 104 | 52 | 64 | 92 N | 8,60 M | 3,6 |
On models up to 09/78 (contact ignition), the inner rotor of the oil pump must be replaced. (https://www.sport-evolution.de/en/Oil-pump-inner-rotor-for-BMW-2-valve-Boxer-models.html)
- SKU SE-20-13811-01-003
- 2-Valve Models