 PCA track event at California Speedway, Recommended Gear Ratios? |
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| race914 |
  Jan 16 2006, 07:39 PM
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73 914-4  Group: Members Posts: 1,006 Joined: 31-October 05 From: Nipomo, California (Central Coast) Member No.: 5,027 Region Association: Central California  |
I just received an announcement on our local PCA email list regarding the PCA Speed Festival at California Speedway this March:
http://www.pca.org/zone8/Z8SFest.htm I've never run this track, and by the map http://www.californiaspeedway.com/uploads/..._coursemaps.pdf it looks like my 901 M-S-X setup, which works great at Laguna Seca, is going to top out pretty early. Can anyone share their 914 experience on this track, top speed, and a recommended gear setup? Thanks, Greg |
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| slivel |
Jan 17 2006, 09:38 AM
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Old car....... older driver Group: Members Posts: 532 Joined: 10-July 04 From: San Diego Member No.: 2,332 Region Association: Southern California |
race914,
In answer to your question about gear ratios at CMS, I also run a box with AFMSX ratio's and rear tires with a diameter of 25.6 inches (275/45/16). With this setup I found that I was at redline (7000 rpm) in top gear when I passed start/finish - which is shortly after entering the oval portion of the track. Therefore I had to feather the throttle all the way around the track until getting to turn 3 and the infield. Last time I ran CMS I lossened a flywheel - I think because of having to sit at redline allthe way around the oval. If you are running huge diameter tires or are going to spin your engine to 8000+ rpm, this is what you can expect. I am not going to run CMS anymore unless I get my spare transmission built with a Y 5th gear. Steve |
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Posts in this topic
race914 PCA track event at California Speedway Jan 16 2006, 07:39 PM
Aaron Cox john rogers runs cal speedway.... i think he also ... Jan 16 2006, 07:42 PM john rogers Since I put in the 2L six I went to K-Q-V and the ... Jan 16 2006, 08:00 PM race914 After I setup my first close ratio 901, I went to ... Jan 16 2006, 09:46 PM drew365 I have a 2.7 twin plug with a Ka,Q,V box. I don... Jan 16 2006, 09:50 PM john rogers There are a couple of things you can do to make th... Jan 16 2006, 09:55 PM race914 Here are my current alignment specs:
Corner Bala... Jan 16 2006, 10:16 PM john rogers Hi Steve, I thought you had the tranny all ready t... Jan 17 2006, 12:03 PM
race914 Jan 17 2006, 01:44 PM |
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