I've seen a few people on here express concern about what to do for a harness setup when at the track. The factory Recaros are not built to accept a sub-strap, so any 6 point or 5 point is out of the question unless you want to trade out for some real race seats.

Schroth Racing, for those who are not familiar with them, are a very reputable company, and have developed a fantastic harness to use in cars that do not have a cage and are running stock seats, but want to stay a bit more "planted" around the track. I have purchased these harnesses for my CTS-V, and a buddy of mine who is an instructor with the same car as me is running this setup as well. The best part is that after the track event, they take about 20 minutes to un-install and the interior is back to normal.

Here are the 2 different 4 point harnesses they have:

http://www.schrothracing.com/store/C...m/profi-II-asm

http://www.schrothracing.com/store/T...allye/rallye-4

 

The first one you linked to, the Profi, seems like it could be a good option, but I wouldn't trust the Rallye series in a high-speed crash at a track event. I've had Schroth Rallye series belts in three cars over the years, including currently in my Mini Cooper, but only use them for autocrossing, I seldom even use them on the street.

 

I've used many of the schroth harnesses....most recently running the profi-II 6-point HANS version in my boxster. I'm a fan of being super safe...so HANS, for me, is a MUST for track events.

 

Just a warning, several sanctioning bodies are making 4 points illegal (some even for HPDE events) going forward for 2011. Be sure to check with your run groups.

Surprising that the recaro option doesn't have a spot for a sub belt, Might want to see about getting an upholstery shop to modify them to have one.

 

Yeah, I would talk to Recaro about that first... usually if the seat isn't designed for a sub-belt they recommend you dont try to modify the seat to make it work (at least that's what Schroth says, I would not trust cutting it to make one fit.

I think NASA is making 4 points illegal after April 2011, but I just dont understand why. I find them to be a VAST improvement over the stock 3 point belts, not to mention Schroth has a DOT approved 4 point ASM harness, so I dont see their reasoning or justification.

 

I believe they're just not happy with any of the antisubmarining features of the 4 points.

 

There is also the issue of running a race harness without a roll bar or roll cage on track. In some types of rollover crashes, a stock 3-point seat belt would be safer than a race harness (whether 4, 5 or 6 point) if you don't have a roll bar or cage in the car.

 

dont you want SOME submarining when there is no roll-bar present so you dont get crushed if the roof caves in?

see above quote.

 

Definitely. I wouldn't even consider these harness kits in a car if you didn't have at least a harness bar from corbeu and preferrably a 4 point rollbar (which is a no brainer for guys getting the LS model).

 

What kind of rollover protection does a harness bar provide?

 

0. Rollbar would be the recommendation

The bolt in harness-bars just provide the proper angle for the shoulder belts and adds a bit of protection versus having an incorrect angle that could pinch the spine in a heavy rollover. You want them heading back from your shoulder from 0-15* down. I don't care for them personally, but its better than nothing.

I've seen guys try to pass tech with 4 points that go through the seat then down to the floor/rear seat area.

 

I fully agree.

 

Big thread on this in the NASA RM region recently:

http://www.nasarockymountain.com/nas...ead.php?t=4362

 

Very useful. Thanks.

 

Looks like the Schroth Profi II ASM 4 point is one that made the exception list.

I definitely agree with using at least a 4 pt roll bar with an ASM harness though b/c when the roof caves in you dont want to be pinned upward in the seat. I know autopower makes some reasonable roll bars with a diagonal brace and harness bar.

 

This.