Schroth says the sub mounts must be 20 degrees back and 4" apart for the 6-point hybrid.

Here is mine in my 964.

Marc

 

timo944, thanks that's great information. Like I said, I don't *mind* drilling the floor, but I have so many other things I want to do with my time, I'd rather not re-do a job that is perfectly acceptable in it's current configuration.

Yes, Potomac is a well run group... sometimes people act/comment on old information. That's not limited to PCA either.

 

Neither am I... directly, at least. That's why I get my information from those who are.

 

The sub-belts on the third picture of the initial post appear to be installed incorrectly with the black Corbeau seats with red Gforce belts - looks like Corbeau Forza seats and if they are Forzas, there is a sub-slot under the removable pad in that seat. The sub-belts should be routed through the sub-slot and stick up between the seat pads, not over the front of the seat. Schroth instructs that the belts should be as straight as possible from the mounting point and not have any obstructions. Only drawback with routing the belts with the Forza is if you are using Corbeau brackets, sometimes the mounting bracket lines up directly under the hole in the seat and blocks the opening a little bit.

 

They are Forzas, I bought them from you guys (and the brackets)

To be clear, the subs are not routed around the front, they run through the lap holes and I sit on them. In the photo, they are hanging over the front in "rest"/paddock position.

 

Thanks for the clarification. I've never seen sub-belts routed through the side lap belt holes for this type of harness model.

According to Schroth's installation instructions (I think they are a great reference for most harness belt installations), their instructions read that the anti-sub strap routing (for their standard 6-point belts) should be vertical down from the groin preferably approx 20 degrees back. However, their Profi F-model belts show a similar setup to what you've done but the sub-straps wrap around the lap belts instead of clicking into the camlock.

If your current setup meets with your sanctioning body, I assume the setup should be fine.

 

I have my 6pt with a T-style anti-sub strap mounted in the same cradle fashion. Granted I have been contemplating a better solution but for now I see this as the least worst arrangement. I feel much better about having the sub straps mounted with the lap belts to the tunnel and stock seat belt holes with 8.8 hardware versus the flimsy floor plan (which was how it was set up when I bought the my 83' Callaway 944).

I have not had any problem to date other than one instructor (non PCA) refused to run with the sub straps mounted like that (I think it was because they did not come up through the seat provision for the sub straps) so he chose to run 4pt. Which IMHO is even more dangerous due to the lap belt can easily slip over the pelvic bone and into your stomach and squish the life out of yah! I know Brey Kraus makes a mount sub strap attachment rig for the Boxter. Wish they made one for the 944.

Good discussion guys!

 

Hey;

That is a perfectly acceptable compromise setup. Given the innefectiveness of the "conventional wisdom" of drilling the floor pan, and the understandable hesitance of some to hack up their cars, I feel it is a sound soluition. It essentially mimics the setup in an open wheel car where the driver is more or less hanging in the sub straps like a climbing harness.

It is NOT a good setup for roll over protection, as there is no belt directly countering vertical motion of the lap belt that holds the occupant down. It is also not a good setup in terms of multiple users (common to all subs to some degree) because it must be worn very tight to work at highest efficiency.

...But it does make sense for some people's needs.

 

LOL, that's what I have been trying to figure out!!

 

Steve, it sounds like you might have the wrong belts. You get an pass if the belt maker states in print that a mounting method is aproved by them for your type of app. things like seat type, angle and the like. This sounds like you might have a set that is not intended for this method. I will be around tonight and this weekend. Per the PM on the local board feel free to bring all that you ahve over and we can find a clean simple solution.

 

I called OG and yeah the guy that sold them to me told me wrong....the did need to be mounted to the floor. 2 hours in the garage last night (after consultation with the tech chair/944 expert) got me set up. Now if it looks like it's wrong at the tech session, we can address then. I'm pretty happy with it and will update the thread with photos (from underneath) if it passes muster.

FWIW, it takes 10 min to unbolt the seats, 10 sec to drill the holes (measured twice!) and 45 min to measure/align the harnesses and bolt it all back together.