Category: TwinSpark Porsche Parts

TwinSpark friend and GT3 enthusiast Ivo van Riet has organized a Porsche only track day on June 23 2012 at the venerable racing venue of Zandvoort. Registration fees are Euro 450 per car for the day. It’s a two class event, where we expect to see a gaggle of 911’s from all generations between race-experienced rivers and Club drivers. Although the sound constraints seem severe, they are on a drive by basis in only one spot of the track, coming out of the corner into the straightaway. A rapid short shift to the next gear will keep you out of trouble!

Ivo has offered a free pit box to groups which bring 4-5 cars to the event, an offer worth Euro 150 a day. We like the date, as it is on a Saturday, normally a feature which comes at a premium. Grab this outstanding opportunity to discover the undulations and technical corners of this [...]

Having your classic 911 sit on its wheels in a well-balanced manner makes an incredible difference in its road behavior. Sounds like it makes perfect sense, right? You’d be surprised what we find has been done to guests at the TwinSpark Racing Lair!

To be able to fit short, RSR or Turbo trailing arms (no, they are not the same…), a modification to the non-RSR (who owns a real one these days?) non-Turbo tub needs to be performed. The pick up points for the rear trailing arms need to be raised and moved sideways. This allows the short trailing arms to provide a sturdier stance to your car.

Sounds easy, but to get this cut and weld job done accurately, a special rig is needed to simulate the set up of the rear suspension. A few year ago we found out that we couldn’t drop our 1973 RSR (originally a 1973 [...]

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.