Mounting racing seats in a street / fun car

Okay I sold and traded the last of my Porsche 996 parts and in trade I got two Recaro poke positions (I think) in red.  
 

I'm building a 4th gen Camaro to use as a CAM and HPDE car.  The seats in it are 90s Camaro laughable for performance driving.  Heck my rallycross Subaru has terrible seats too.

These seats are side mount.  So can I mount these on a slider?  I know I need a floor plate.  I see Planted, Corbeau, and Sparco for this car and lots of flea bay cheap is too.  NRG has some too.  I need side plates to attach the seat to the floor plate or sliders.

I also need a 4 pt bar to go with harnesses or the dreaded harness bar.  
 

So I need floor plate, sliders, side plates and then I can mount these?  Or just floor and side plates for a fixed seat?  
 

For five point harnesses does the submarine belt tab get bolted to the floor pan or welded to the pan?  Does it go on the seat track?

Looking for all good advice and suggestions here.  
 

Any brands of brackets good quality and value?  Or just go all in and get the best regardless of cost?  
 

Thanks.

My .02 cents is, 1) mount the brackets or whatever you get to the roll bar/cage, or 2) utilize all the factory mounting holes as much as possible.

How's the headroom situation? For most of the cars I've dealt with the off the shelf seat bases are not very space efficient in the vertical direction and I've ended up DIYing it to get the seat as low as possible. But yes the general process is seat->side mounts->some kind of base that preferably uses the stock mounts.

On the one that got a harness we put the sub straps to the seat base. I'm not sure that's the best choice, but I think it's fine as long as you trust the seat mounts.

Make sure to use a proper anti-sub strap mounting location. In my car it's mounted to a 16in^2 plate of 1/8" steel under the seat. You'll want more than just welding/bolting the tab straight to the sheetmetal of the floor.

Pro-tip:  don't build your own floor mount bracket. Even having one to copy for my E30 I found it a horribly time consuming and fiddly experience.  "I ain't paying $130 for something I can make!" quickly turned into "I wish I had just bought one!".

ddavidv said:

Pro-tip:  don't build your own floor mount bracket. Even having one to copy for my E30 I found it a horribly time consuming and fiddly experience.  "I ain't paying $130 for something I can make!" quickly turned into "I wish I had just bought one!".

Yeah it is and if you can avoid it certainly do. In my case it's always ended up being "I'm not paying $150 for something that puts the seat 2" higher than stock, so I guess I have to make my own."

Race seats and harnesses are a bit of a pain in a street car. I've done it several times over the years and I have one now, so obviously it's something I'm willing to accept. Just be aware that it will affect use of the car, jumping in and out or giving people rides becomes higher effort and harnesses are not necessarily as comfortable as a three point, especially with varying types of clothing. Jeans are not as comfy with a sub belt as a racing suit :)