What we do
During the conversion the gearbox receives a spray-oil supply modelled on the works racing cars: oil is directed at the meshing zones of the gears and at the bearing seats instead of relying on splash lubrication alone. The conversion is best done during a rebuild — the gearbox is stripped anyway, and the fresh setup is part of the job.
What it gives you
Lubrication under load
at high revs and under sustained full throttle, splash lubrication breaks down — the spray-oil supply keeps the oil film where it is needed.Temperature under control
directed oil flow lowers peak temperatures at teeth and bearings — combined with gearbox oil cooling and filtration on request.A factory solution, not an improvisation
the conversion follows what Porsche itself ran in racing — proven in the 911 RSR, ST and 914/6 GT.
Typical problems this solves
- Overheated gearbox oil on circuits and hillclimbs
- Gear tooth wear after sustained full-load running
- Gearbox failures with uprated engines that overwhelm the standard lubrication
For which gearboxes
The conversion is possible for the gearboxes of all air-cooled Porsches — from the 901 through 915 and 930 to the G50. It makes sense wherever the car is used in motorsport or driven hard on the road.