6 point sub belt routing help

Hi all, back with more harness mounting questions. I've got a corbeau forza that says it's 6 point compatible, but when routing through the sub belt hole in the seat it's forward of my center line (I'm pretty skinny). Can I route it around the edges of the seat?

This is it routed through the center hole, that (as far as I can tell) is supposed to handle 5/6 point harnesses. It's both forward of my center line (since the 6 points are 0-20* behind centerline according to every doc I can find) and it binds the two substraps together.

Here's when I route it under my leg and out to the sides. It doesn't crush my nether-regions and seems like a better option, but it has to fight with all that's going on under the seat, which seems odd. This might be a completely inappropriate "solution" though.

Thanks!

I remember looking into this a while back and I either setup is supposed to be OK with a 6 point. Either Schroth or G-Force have good instructions with diagrams on their website (don't remember which I used).

In either case, it's important that the belts can run more or less straight to their mounting point without running over the edges of the seat.

Huh, I'm re-reading the schroth one and I think I'll go with the "side slots" for the mounting less someone tell me that I'm going to die a horrible death for it.

In reply to accordionfolder:

First question. What do the installation instructions for the harnesses say? Does your model permit you to sit on the sub straps?

Second. What do the tech inspectors where you race accept or require? They will seldom require anything counter to the manufacturers written instructions, but they may have particular issues or preferences with some mounting schemes.

The key to safe installation of sub straps is that these straps when adjusted prevent the buckle from riding up in an impact. You need to keep the waist straps low and over your hip bones at all times to prevent abdomen injuries and the location of the buckle during impact is key to this. The shoulder straps will try to pull the buckle up in a forward impact so the sub straps must pull down at the same time under similar loads. Sitting on the sub straps and having them properly adjusted can accomplish this as can having them directed straight down thru the seat near your groin and slightly back (or continue straight down if the seat is very low) to mounting points. Directing them down and forward is bad because the initial effect during an impact of this geometry is to permit the buckle to ride up as the belts effectively get longer as you move forward. Generally it is advised to avoid having any of the belts mounted so they change direction significantly when passing thru seat openings as this can act to chafe in use or suddenly cut the belt in an impact. I would avoid this at all costs for shoulder and waist belts, but it is often hard to accomplish with sub belts so be sure any edges it has to ride over are well protected. Assuming the seat is the Forza and not Forza Sport it is not FIA certified and therefore you should be able to alter the seat bottom opening without worrying about voiding any certification.