Making a harness bar.
Thread Starter
Race Director
Joined: Jun 2004
Posts: 13,974
Likes: 710
From: WI
The bar worked well at my last event. Paul sent me a picture of the frame area under the targa studs. That is the frame that I tapped threads into. If I were to make another one I think I'd just remove a square of metal there and sit the bar down onto the frame. Like how a roll cage is made. Then use all large bolts. With the gas welding all of the bar comes out to something like 65,000 PSI in strength. It's just making a good solid mount.
I installed the harness connectors under the stock belts so both can be used. That turned out to be a clean install. T50 torx on the belt bolts. The stock belts retract better now after 20 years of fuzz, hair, etc, was cleaned out. I only found 1 penny.
I installed the harness connectors under the stock belts so both can be used. That turned out to be a clean install. T50 torx on the belt bolts. The stock belts retract better now after 20 years of fuzz, hair, etc, was cleaned out. I only found 1 penny.
Team Owner
Joined: Mar 2001
Posts: 30,863
Likes: 293
From: Boston, Dallas, Detroit, SoCal, back to Boston MA
It looks to me that your bar is mounted too low. If that's the case, your spin will be compressed in an accident! 
If you look up the SCCA specification, you'll see what I mean.
For comparison, here's my Hardbar. It mounts to the stock seat belt holes which are much higher in the car, and they go right into the b-pillar halo.
If you look up the SCCA specification, you'll see what I mean.
For comparison, here's my Hardbar. It mounts to the stock seat belt holes which are much higher in the car, and they go right into the b-pillar halo.
Thread Starter
Race Director
Joined: Jun 2004
Posts: 13,974
Likes: 710
From: WI
There is a set amount of inches up and down the bar should be, I'm in that spec. There was a huge PDF posted a while back in the race section that is much more detailed then the harness instructions.
I'm thinking about removing a section of metal and making a spacer or just making a new bar so it can be on the frame. Anyone had the above AS&M bar in a crash? It uses the targa studs.
I'm thinking about removing a section of metal and making a spacer or just making a new bar so it can be on the frame. Anyone had the above AS&M bar in a crash? It uses the targa studs.
Thread Starter
Race Director
Joined: Jun 2004
Posts: 13,974
Likes: 710
From: WI
I probably won't have time to make anything else for a while as we are moving! It took almost one year to sell in this market. Only 14 days to buy though! 
I read about the spinal compression and we checked my height in the seat against the specs before we made the bar.
I read about the spinal compression and we checked my height in the seat against the specs before we made the bar.
Thread Starter
Race Director
Joined: Jun 2004
Posts: 13,974
Likes: 710
From: WI
My conclusion to this was to put a large bolt (same as the stock seat belt size) and a plate through the shock opening into the frame. The plate will help spread out the load and prevent the bolt from tearing through the frame. The plate and bolt sit under the top frame steel, I drilled a hole for the bolt to stick up and mount the bar down. I also stuck a strengthening bar into the front of the frame where the frame could get pushed down through. I don't think all years have a hole in the frame for the shock mount.
