Leonard recently unearthed a Porsche press release from 1972, talking about the transmission changes for that year: the arrival of four speeds as standard and five speeds as optional, and the replacement of the dog-leg pattern on previous 911s. This release heralds the arrival of the Porsche 915 transmission and is interesting stuff, though I wonder if its really about countering objections on why five speeds now cost extra.
To match the increased power, a new, stronger gearbox has been developed by the engineers. Due to the greater flexibility of the engines, and the associated wider power range, the standard unit could be reduced from five to four gears thanks to the better torque. For all those who do not want to forego the fifth gear, a likewise newly designed five-speed gearbox is available as optional equipment.
[...]- April 24, 2012
- Historic Racing 911, Hot Rod Porsche Parts, R Gruppe Europe, TwinSpark Porsche Parts, More Categories...
- Posted by Rick Bruins
- 3 Comments
I came across some confusion on a Porsche forum the other day, where one user was telling another that WEVO do not make a transmission mount for the Porsche 915 gearbox, only the G50.
This is incorrect: WEVO does make transmission mounts for the Porsche 915 gearbox. Users can chose from blue and black pillows for Porsche transmission mounts: semi solid and a bit softer. I have blue in my 1976 Carrera 3.0 and would not change them, but lots of our customers use black quite happily in more road-biased cars.
WEVO originally got into Porsche tuning parts as an engineering challenge. Australian Hayden Burvill is a trained design and vehicle performance engineer who has worked on Formula 1 cars, Group C racers and the most successful Indy cars. Indy cars brought Hayden to the USA and he bought a 911. [...]
I drove an interesting car the other day. It was a Porsche 911 – Type 964 – backdated to give some early-style looks with modern day creature comforts. In some ways, the 964 was a bit of a mismatch of style and shapes but one area where it did itself proud was the engine.
964 engines have a good name among specialists. The bottom end of a 964 engine is said to be more robust than the 993 motor – especially when boost is introduced – and the one I drove felt as strong as an ox. That might have had something to do with the new Porsche Motorsport pistons and barrels fitted from a 3.8-litre 993 RS engine, along with camshafts from a 993 Cup car.
The other thing this car had was a lightweight flywheel: something [...]
