OK, Folks ... finally got my seats in. I've had them since last July but "chit" got in the way of my plans to install before now.
These are Arizen custom sets, based on a Sparco Roadster frame, with custom rails prefitted for the car (C5 fitment)
Seats are leather with suede inserts.
Fit is tight ... no extra room anywhere ... but everything works.
These are not the cheapest seats/mounts around ... but they meet my requirements. These are a compromise seat - because I wanted a seat that I could still use my 3-points on the road - so the sides are lower and the lap belts go over the sides as well.
Pass seat base - note that the left (inner) rail clears the sensor module just behind the front rail mount. Also see that the 3-point belt catch is installed on the (rear of two mounting points) on the inside rail.
Note that the crotch belts are supposed to be attached rear of the chest line - these are.
Here's the belts installed. These are Crow 6-point, Cam lock. I ordered them thru Arizen.
The front belts go thru a hole in the seat base.
Here's the driver seat base. Note the pigtail from the power seat module ... When I started the car after install I got no warning lights at all.
Here's the driver seat. You can see the 4-pt bar that I had welded in three years ago ... in anticipation of installing seats & harnesses.
Here's a close-up of the lap belt - they clip in to the eye bolts.
Here's me in the seat, showing the lap belt angles (need to be 45-60 degrees from horizontal) and the shoulder belt angles (should be 10 - 20 degrees from horizontal - these are.
I chose the manual sliders to be able to drop the seats lower. These give me ~ 2" more headroom. - that's with the rear mounted on the second hole from the bottom (4 holes rear) and the front mounted in the middle of three holes.
I plan to go to the track Friday and will do my final adjustments of belts, seat position, etc. based on that experience. I also will be using my H&NR for the first time. It's an R3 Rage - uses a chest belt - and unlike the HANS, is not bound by the harness straps ... so it can be used with a three-point (in case one is doing a right seat ride in a non-harness equipped car.)