The 24 Hours of Lemons Forums → Lemons Tech → bolt size for locking sliding seat
Our seat has to be adjustable due to different size drivers. The rails and sliding members came from the roll bar company so i know they are good. Would 2 - 3/8 dia, grade 8 bolts be okay for tech as our method for locking the seat in position?
You mean in lieu of using a spring loaded latch?
Those 2 bolts, if through holes in the slide would be many times stronger and more safe in a collision than a latch.
I can't see them failing them.
Use nylocks or mechanical locking nuts so they can't work loose during the race.
Make sure you have a method of insuring the seat is no more than 6" from a back support even with your shortest driver.
I also feel more comfortable with the simple but robust sliding pipes with bolts in holes than the sliding latches.
I have an adjustable seat back support that attaches to the roll cage. The distance from the back of the seat to the roll cage is greater than 6 inches. But I thought that was okay as long as I have the support. Will I have a problem?
For the seat mount, it sounds like you're (effectively) bolting the seat to the floor with some fancypants DIY seat rails. So I'd think the normal restraint bolt requirements would be enough - grade 8 and not shitty looking.
If you plan on adjusting it a lot, make sure your WHOLE crew is practiced at doing it, and maybe mark off the appropriate settings for each driver. You'll eat time LIKE CRAZY at driver changes otherwise, and it's a safety item so it totally needs to be done right every time.
For the seat support, you're in the clear with that support bar.
The 24 Hours of Lemons Forums → Lemons Tech → bolt size for locking sliding seat