Mussl Kar

This should be really interesting. I'm not taking my RS today though. Today I am going to punish the Pzeros on the SL55 K2 beast. With 628 tq under my foot something has to happen. Also a lot easier to left foot brake. Hope to get vids up later this eve. Spent time last night gaffing a camera mount. Hope it makes it past tech inspection.

Mussl Kar

Very long course and easy to read. Better to use my brain on car control instead of just trying to find my way around. Nowhere near the fastest but certainly the best sounding. 1st gear all the way.

http://s19.photobucket.com/albums/b1...=AUTOXRUN4.flv

Slantnose!

Did sound nice.
Great site you all have!

Conekiller

Was that at devens?

Dr. Car

Wow, I can just hear the weight of that Mercedes on those poor tires. I wonder if with all that weight and horsepower if it could complete that tight autocross course any faster than a previous gen SL500?
That's brave of you to autocross that car -- certainly you could take it to the dragstrip and play hero. What times/speeds have you run in the 1/4 or 1/8?

Mussl Kar

Conekiller
Yes at Devens. First and last time with that beast.

Dr. Car
Never dragged it so I don't know. From 40 mph roll it keeps up with a 997TT and just looses maybe a car length around 140(before I sold the TT).
That was a clean run and the tires were fairly quiet compared to my earlier runs.

toddk911

Devens as in Ft. Devens???

I spent 9 lovely months there about 10 years ago.

So now there is an autox track on base?

Mussl Kar

Moore Army Airfield(Fort Devins) was decommisioned some years ago. It is now used by the State Police for car control training, and by many car clubs on weekends for autox. I'm new to autox but I am sure it is in use almost every Sat and Sun during the driving season. Drive your **** off and spin out of control with nothing to hit. Gotta love it.

New Autox addict with no recovery options in sight.
Scruffy
AKA Mussel Kar

N_Halbert

Yes. The base is closed and we use the runway and taxiways. Done right and you can get a 1.6 mile autoX course out of it. (Note: Lime Rock is 1.3 miles)

Dr. Car

That's too long of an autocross course, IMO. 40-60 seconds is ideal - anything over 80 seconds uses up too much tire, gets the tires too hot on a hot day, and requires lower intensity driving to avoid a cone hit over such a long course. Plus, at 2+ minutes, I'd be concerned about having adequate worker coverage, and having lots of reruns from faster cars catching slower cars, and the longer waits between cars that would be necessary in order to avoid such problems.

- Ted

Mussl Kar

I can only speak for this year but none of those problems seem to exist. The starters generally know who is fast and who is not, and the serious runners cool their tires down before each run.

N_Halbert

Not a problem. At 40-60 sec you are just getting into it and it's all over. We usually have 30 to 40 people to cover the course. If you use autoX compound tires it may be necessay to water down your tires but streets or R compounds are fine. We usually run 3 cars at a time and space them accordingly. Run groups are split into two sub groups to keep wait times down. It also allows for two driver cars to run one driver in each half.

Tires were getting a little toasty yesterday but then again they got in 10 runs.

Slantnose!

I wish we would have a 80+ second autocross.
Sometimes we have a car take that long, but usually they are new & lost, heh.

Mussl Kar

Don't be picking on me.
Got ten runs in, yeah, thats good

Mussl Kar

Anybody else from here going this Saturday?