Region: NWR / Oregon
Car #: 88
Year : 95 Posts: 2000
A 16" USRP seat mounted on 3/16" steel attached to the stock seat mounts takes a bit of "massaging" to fit. My door bars go out about as far as you can put them without them being nerf bars so you can't get the seat much further from the tunnel.
A 17" will take about an inch more massaging. Depends how tall you are I suppose. I worked with my cage builder a fair bit to make the most clearance. If you're shorter than 6' you can go higher and get more clearance. If not, grab the welder or...
-------------------- Keith Novak (Will work for tires)
Car #: #26
Year : 1991 Posts: 334
Make sure a 17 is what you really need. I am 5'10 and WAS 243 and fit comfortably in a Ultra Shield 16 mounted on steel runners mounted to stock seat mounts. I would have found a 17 to be too large and also ditto for a Kirkey 17.
-------------------- William Bonsell SCCA/ICSCC #26 SM/ITA
Car #: 86sm
Year : 1995 Posts: 67
I have a 17" Kirkey. Instead of re-shaping the floor of the car, I cut part of the seat bottom to fit the floor. Part of the seat cover sits directly against the tunnel and the rocker panel. It's an Intermediate, so it has plenty of padding over the floor.