Cajundaddy wrote:Thanks to all for a very well run AX at the Q. PCA-SDR events always manage to run smoothly even when a bit short handed in leadership positions. Extra thanks to Kim Crosser for tightening the loose nut behind the steering wheel in my car. I shaved 2 secs in the timed runs by applying the patented "Crosser AX formula".
BRI question: I noticed my BRI took a big hit from 2009 to 2010 with no significant BSX class rule changes and was just curious why? Last year I was rated the same as 944spec which seemed like a pretty close performance comparison. In 2010 my little 2.5L pea shooter is nearly stock with full interior and 100 DOTR tires but is now BRI rated faster than a Cayman S 3.4L which has 50% more power, better brakes, wider tires, better suspension and nearly the same weight. I have driven a Cay S and it feels like a rocket ship compared to my car. How does this all get calculated?
I'm not sure how the BRI gets calculated but I was wondering what the BSX (Boxster Spec X) class was all day yesterday, and after reading your post I decided to look it up. From my understanding a Spec X car can run bone stock, and run with the Boxster Spec cars. As long you meet all the safety requirements for this, you're good. I'm not sure if i'll be answering your question or stating the obvious, but it seems like in BSX you have a free rain as to how much you want to modify your car upto, but not quite to that of the Spec class cars, and then only take some of the BRI hit that they do. If that is the case, then that is a bonus deal, because the BRI hit is only 1.057, the same as an LS car. The Boxster Spec cars take 1.082! Carl Vanderschuit and Russell Shon ran their boxsters in LS and MS and were always placing high in the BRI, but they utilized their points for their class well with sticky tires, suspension mods, sway bars, camber plates etc. I didn't read the BSX rules in depth, but I got the impression you could run more modifications in BSX than in LS and take the same BRI hit? If all you're running is sticky tires in that class, then it could be you're not utilizing what that class has to offer enough to make the difference the BRI factor that is associated with it.
Last year I had a Cayman S with PASM (factory installed option) and I had to run in NS even though it was on street tires and had no mods to it. I was hit hard with a 1.071 BRI factor, and running against other guys who had tuned their cars to suit the class. Had I been able to run in NSS I would have placed higher in the BRI, but that is how the class rules worked at that time. Kim Crosser pushes his Boxster amazingly well in LSS on street tires and usually lands up there in the top 10 BRI so the BRI factors do seem fair.
You also reminded me of an interesting experience I witnessed last year at an AX. At El Toro with the OCR club, some of the top gun drivers ran on street tires during practice sessions in a stock Cayman S putting in 70-71s lap times, and then switched to new sticky slick tires and put in 67.5s during timed runs running in NS. They cleaned up in the BRI because the tires alone made so much of a difference.
I realize i've gone off on a tangent here and not really answered your question, so I apologize for that, but at least I know what a BSX classified car is now
Great AX guys. That left hander kink that you approached before the down hill section was a real challenge.. but very very cool!!
Keep up the good work!!
Carl Scraag keeps the key to unlocking its truths deep in the recesses of his mind. See his BRI-ness for your answer.
. Carl V. can pretty much drive anything to a high BRI placing (provided he can keep his wheels on 
).
