race harness

[Perfectlap]

that was my mistake, it was a four point harness. and it was a Boxster not a 996.
also, Don't forget that if you are under the broom stick point the windshield header and roll hoops provide more than adequate roll over protection with the mere use of a standard stock seat belt which isn't going to hold you in place nearly as well as a race harness.

[djomlas]

i found one guy that did it

there are more pics on his site as well.

and also, about the broomstick rule, does that also apply if you show up there w a hardtop?

[Perfectlap]

no the broomstick test is only on the track and in a convertible. I don't think I have ever heard of a car rolling over on an autocross. Most of the accidents involve someone not braking and ending up going into the crowd, fence, etc.
One year one of my clubs who have very open courses and not these mickey mouse courses where you aren't ever going straight for more than 30 feet, had it's President wreck his car crashing into a light pole in the Stadium lot.
however difficult, It's definitely possible to flip a Boxster at a low speed event like an autocross if the surface has undulations, and ruts/potholes etc.

[ChrisZang]

Hi,

I was going down that lane myself some time ago and did some research
there are very good instructions at http://boxsters.addr.com/hacks/harness.htm
I BELIEVE (it's not confirmed) that the Brey-Krause parts which you will need are R-9001 and R-9003

HOWEVER (and that's where I stopped) when I did driver education in preparation for DE/TT events I was told that running 5 or 6 point harnesses with a stock Boxster seat is actually quite dangerous. The stock seat is kind of shaped like an "A" which means that the shoulder harnesses will have the tendency to slip off your shoulders. And I was told that they will do that at the worst moments This means that you will be safer with your stock 3-point harness.

I live in CA and if I want to do TT in my PCA region I need to buy racing seats (the one's with the holes in the back for the shoulder harnesses) to install 5/6 points

Better check that with your chapter before you spend a lot of money on something they won't allow you to use.

Let me know how it goes
Christopher

[John V]

Originally Posted by ChrisZang

HOWEVER (and that's where I stopped) when I did driver education in preparation for DE/TT events I was told that running 5 or 6 point harnesses with a stock Boxster seat is actually quite dangerous. The stock seat is kind of shaped like an "A" which means that the shoulder harnesses will have the tendency to slip off your shoulders. And I was told that they will do that at the worst moments This means that you will be safer with your stock 3-point harness.

Christopher you are right on the money. The harnesses in that pic above show exactly what I was referring to. Very dangerous.

Furthermore, factory hardtops don't provide any additional rollover protection beyond the factory rollbars. A hardtop is not an acceptable substitute for a roll-bar extention at track events.

[djomlas]

i understand that part, but if you show up there in a boxster with a hardtop, will you have to take it off and have a broomstick test done?

[Perfectlap]

no you can run your car on just about any track with the hardtop. Presumably if you can fit in the car with your helmet on you are ok. Not everyone can do this though...like my friend who is 6'3 and simply can't fit in the car with a helmet on unless the top is removed. He would need a roll bar extension to run in my car on any track.

I don't think I have ever seen anyone administer a broom stick test at an autocross. THey probably should, I'm sure at least one big guy in an S2000 or Miata, Z4 etc has had the top of his helmet crest above the windshield header.

[John V]

I don't know about the Glen, but at Summit Point and VIR (my "local" tracks) a Boxster with a hardtop (and no additional rollover protection) would not be legal.

No such requirement for autocross UNLESS you have harnesses.

[Perfectlap]

so are open top Boxsters without a roll bar extension not legal at SP and VIR?