Mark, Kelly, and Myself are planning on attending the BMW CCA Autocross at Bandimere Speedway on October 20th. Thanks to Kelly for looking into this.

October 20th BMW CCA AutoX

NOTE: Kelly and I will both be attending this as out 1st autocross so please feel welcome to join us. :smile:

 

Just an update: Mark, Kelly, and I are all registered for the BMW CCA autocross.

For anyone else, let me know if you're planning on attending. It would be nice to have a couple more MINI's show up.

 

sunday... Sunday... SUNDAY

Sounds like there will be more than a few people dropping by at various points during the day to watch. :smile:

The MINI's are in the "Non-BMW" Class. Another way of looking at that of course is that the BMW's are in the "Non-MINI" class.

 

>>The MINI's are in the "Non-BMW" Class.

Actually that has changed since registration first opened. Both the COOPER and COOPER S are now considered to be a BMW classification and the point system applies. In the case of DaveInDenver's MCS the point total is 95 classification points and will classify in CS.

Mark

 

I pulled out my BMWCCA Rocky Mountain Chapter Motorsports Report to see what other car ran in CS.

From the August 17th, autocross

Class: "CS" Total Entries 5
1998 M3 4dr
1991 M3
1991 M3
1998 323 is
2000 Z3

 

See you guys there!

By the way 1991 M3 = 2.3 liter (192hp). No problem...we'll make it up in the turns.

 

Pictures of the event have been uploaded to the MCO Autocross Gallery and the MCO Rocky Mountain Gallery

 

Congrats on the excellent runs - the MINIs seemed to dominate their class. After seeing them in person in action, I am now converted and will be finding one of my own.

Brian Green
3rd place in ES class

 

Brian,

Welcome to MINI Cooper Online. If there are any questions you have about the car, Schomp MINI, or buying a MINI out of state, feel free to let us know and we'll try to help you out.

Personally I had a fantastic time at the autocross and as a newcomer, I was really impressed with the top notch event put on by BMW CCA. Very cool to see so many people out there on Sunday with their cars.

 

Brian,
Get the S!!!! We have to get enough out there to start our own class at BMWCCA

 

I like both the COOPER and COOPER S but given the altitude here in Colorado the S, due to supercharging, looses much less HP than the COOPER (due to its non-forced induction). While I don't have dyno results the rule of thumb is that normally aspirated cars will generally pick up 15-20% HP going from our altitude to something closer to sea level.

Mark

 

Mark,

I recall an article that I wish I could find, but it enlightened me about turbo vs. supercharging at altitude. The absolute altitude, or the altitude at which a turbo no longer produces rated horsepower, is higher than sea level - up to the point at which the wastegate - and this part I'm fuzzy on - no longer retains peak boost. Superchargers have no wastegate, and while they produce more power due to the supercharger, they begin to lose horsepower at the beginning of a gain in altitude. In other words, depending on the wastegate, a turbo may retain sea level horsepower up to an absolute altitude that may be up to, say, our altitude and will then linearly lose power as if it were normally aspirated. A supercharged engine acts just like a normally aspirated motor except that it makes more power to start with.

Anyone that can explain better - feel free.

Randy