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Complexities of Replacing Components on Your Car

Complexities of Replacing Components on Your Car

Tech Notes from Tony Callas & Tom Prine A customer recently came in slightly perplexed at some work he performed on his own 2006 997 Carrera S. The initial problem was that the passenger side electric window began to slow and strain when closing the window. Finally the motor stopped working completely. The customer purchased a new factory window motor, installed it and, to his surprise, discovered that the motor would not operate at all. By the time he came to see us he was more than a little frustrated. His demeanor changed when he found out that there was nothing wrong with the new motor, or even the way it was installed — it just had to be coded to the car. In today’s world of increasingly complex automotive electronic systems, one of the realities is that components on the car must be recognized by its intended control system in order to communicate and function normally. This is simply known as a “handshake” between controllers. Another interesting f ... read more

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News and Updates

LeMans in car Porsche GT2 Callas Rennsport 1996

This is an official in car video of our qualifying from LeMans in 1996. The race team was based in England

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970

Callas – 24 Hour LeMans 1998 Technical Assistance

Have you ever wondered what it’s like to be behind the scenes at LeMans, behind closed garage doors? See what goes into the preparation, running and accident correction of a Porsche GT2 for the 24 hour world famous endurance race known as LeMans

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Racing

Porsche 986-996-987-997 Fuel Trim Information

Hey Tony, Can you shed some light on a fuel trim fault on my 996. It is reoccurring and I am having a tough time finding the problem. Anytime you have a ME 5.2.2 (1997-1999 986-996), ME 7.2 (E-Gas 986-996) or 7.8 (Roughly 2002-on) 986 and 996 with running issues, check the fuel trim numbers: TRA-RKAT (Idle range which is around 1700 and below) FRA-FRAU-FRAO (cruise range which is around 1700 and above) fuel trim numbers. The Oxygen sensing AKA Lambda or on the later models they call it “fuel trim mean value” is “STFT” short term fuel trim. The TRA or RKAT and FRA or FRAU-FRAO are the “LTFT” long term fuel trim. For TRA and RKAT you want around them “0”. If it is below “0”, the car is running rich at idle and it is taking away fuel in the Idle range. If it is above “0” the car is running lean and it is adding fuel at the idle range. The FRA or FRAU-FRAO should be around “1”. If it is below, the car is running rich in the cruise ... read more

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970

The Crew Chiefs Notes: The Daytona 24 hours

The Crew Chiefs Notes: The Daytona 24 hours By Tony Callas and Tom Prine The history of sports car racing at Daytona International Speedway started in 1962 with the Daytona Continental, a 3 hour sprint race and was first won by Dan Gurney in a Lotus 19. This race expanded to a 2,000 Kilometer event in 1964 and then two years later in 1966, Daytona hosted the second 24 hour race in the USA; there will be a little trivia at the end of the article. The 24 Hours of Daytona is the first race of the season. Preparation for the race must start months before the event, even if you’ve purchased a brand new racecar from Porsche Motorsport in Weissach, Germany. Hotel rooms must be booked 3 to 5 months in advance, it is always better to have all crew members of the team staying at the same place, both to keep track of everyone and the ease of shuttling members to and from the hotel and track. The number of crew members is dependent mainly on the ... read more

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Racing