Having seen some 944 wreck pics, I would like to weld some reinforcement bars from the sill to the tunnel to mount my seat to at some point. The floor pan can fail with some types of impacts, which doesn't look pretty. Hanksville (cage builder, RM sponsor) did this type of reinforcement in Whit's Acura, and it looks like money well spent. That is common practice in rally car preparation too. Just my $.02

cullenwinter wrote:


Fine with me and ok in the rules as this is for safety not any competitive advantage.

Jeremy,
This can be repaired by welding. The was done on the #95 25 hours car, my #89 car and I believe Steve's #106 car.
TCDesign said this was more common than you might think.
I like to drill through the floor and use big fender washers, larger bolts rated M8 or higher and a nylock nut per bolt.

Joe,
Were the metal pieces just scraps you had laying around or were they specifically shaped?
I just use big fender washers because they were readily available at any hardware store.

Cullen or Chuck,
Can you get some pictures of the reinforcement Hanksville did for the Acura?
I'm interested in this.

pixrken wrote:


They were some scraps I had laying around that seemed quite large. I figure the larger the better. As you can see the inboard side needed smaller backing plates due to where the lines run under the chassis. If you note the two goldish ones the are the sub belt mounts using hardware from the Schroth harness kit. I don't have a picture of the passenger's seat mounting, but for that I used a large plate about 2" by 12 or 14" long to back up the front and rear holes. Again this was stock I had on had and since my car was underweight (need ballast anyway) saving a few ounces was not an issue.

pixrken wrote:


I'll check to see if there are build pics, and will post here....

Thanks guys. I think I'll get some burly washers and bolts (how long?) and tackle it this weekend.

J