Installing a Sparco Sprint - Which floor mount?

[steved0x]

Originally Posted by Highrise

Here you can see the seat belt mount placed between the seat and side mount. The only real modification needed was drilling out the hole to 1/2" for the factory 7/16 bolt to clear.

I like it! No shimming between the side mount and floor mount!

When you go to install the seat, this tool will be your friend:

http://www.amazon.com/GearWrench-9221-Double-Ratcheting-Wrench/dp/B000HBF5LQ?ie=UTF8&psc=1&redirect=true&ref_=oh_aui_search_detailpage

Since you are floor mounting without sliders you will have to wriggle your hands around the back and under the seat to get the floor mount bolts in. Once you get it going you can use this to ratchet it down.

For final tightening I used the smallest wrench from this set (since I was afraid I would ruin the ratchet mechanism on the other one)

7 Pc Metric Universal Combination Wrench Set

What worked for me was to start all the 2 back seat mounting floor bolts very loosely, then the front 2, and once all 4 were started, go back and tighten them up the rest of the way.

Your seat belt receptacle mounting hole may be a fair amount bigger than the bolt, if a sleeve/bushing didn't come with your Omix-ada seat belt receptacle adapter you would want to get something like SR s65 from here:

https://www.schrothracing.com/competition/hardware/bolt-in-hardware

This will allow your seat belt receptacle to pivot and will spread the load around, instead of concentrating it onto one contact point on the threads of your 7/16 bolt.

[Highrise]

Originally Posted by steved0x

Your seat belt receptacle mounting hole may be a fair amount bigger than the bolt, if a sleeve/bushing didn't come with your Omix-ada seat belt receptacle adapter you would want to get something like SR s65 from here:

https://www.schrothracing.com/competition/hardware/bolt-in-hardware

This will allow your seat belt receptacle to pivot and will spread the load around, instead of concentrating it onto one contact point on the threads of your 7/16 bolt.

Since I'm using the factory bolt (7/16-20) to attach the buckle directly to the side mount/Omix-Ada backing plate (also 7/16-20), I'm hoping it should go together without any issues. That way I'm keeping it as close to the factory design as possible.

But I do see what you're saying about the belt being able to pivot as a way to spread out the load. Since the seat wont be changing positions, I'm planning on setting it and leaving it since that seems to be how the oem bracket is designed. Well, at least I've never really noticed any back-and-forth movement with the buckle attached to the factory seat frame.

I'll post updated pictures as soon as I dig into this a little more.