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928 Intake Manifold comments by Mark Anderson - 7/28/2003

Mark Anderson of 928 International Comments:

Just got back from a fantastic weekend at Sears Point(now Infinion). As some of you may know I recently rebuilt my car from the ground up over the winter and I also fitted the new 928 Development carbon intake system. I had been working on the car for weeks and we had dynoed the intake but never had a chance to actually test it so I was very excited.

Our initial test showed an improvement of 40 more rwhp (now 470 total rwhp) but I think there is more ahead since we are presently using the factory mass air sensor. I had sent SCCA a formal request to run the new manifold and got a 1 race provisional which was up for review after this weekend. I am happy to report that they are now adding it to the 928 vehicle technical sheet so it will be legal for all 928's to use.

The first practice session we were 14th out of 24 but I had a problem with a crank case breather and only got about 1/2 the session in. I also thought the car had to much over steer so I wanted to make a spring change before the next session later that day. Session 2 the car felt much better and I was convinced I picked up 1-2 seconds but the timing sheets show we lost .7 seconds and dropped back to 17th place.

http://www.world-challenge.com/2003/events/inf/results.html

Apparently my ass-o-meter is not functioning properly. Saturday we qualified 14th and picked up a full second over our best time and we were in the middle of a very tight group of 7 cars separated by less than 1 second. The start went well and I picked up 1 position in the first lap and another on lap 3. I was in the middle of this 6 car freight train with Randy Pobst leading in the factory Audi. By lap 15 I was up to 9th place but in the 20th lap Randy Pobst lost a tire in the middle of turn 7 and in the mayhem I lost a position and finished 10th which still paid $1000. This was by far the best Speed GT race I've been in with lots of action and very close racing. I can't wait to see the TV coverage next week.

http://www.speedvisionwc.com/2003/tv-schedule.html

A lengthy post race inspection revealed that I narrowly made my official weight of 2850 with driver. I weighed in at 2856. Had we not had a few laps under yellow I would not have made it. The SCCA officials also said that I was up for the "Hard Charger Award" of the race but they gave it to the guy who passed me at the end.

Thanks for all the 928 owners who came up and supported us. I let Kibort fill you in on his weekend but he had a good time as well.

> Mark

 

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