After 6 months of having my LE Coupe seat in the lowest position, I decided to give a try at adjusting the angle. I am 6' tall and 155#. I left the rearward position in the lowest point and the front in the middle position. The middle bolt wouldn't line up without drilling it oversize and since I wasn't certain I would like this position I left it out. It isn't needed. I did not move my steering wheel position so I could see what difference it would make.
First...after a week of driving the car I definitely prefer the new position as it supports the back of my thigh better and seems to support by rear end better. The other favorable change is that it seems to give me significantly more view of the instrument cluster. Before the time at the top of the display was barely hidden by the steering wheel. Now I have about 1/2" more visibility. I think with the tilt it may gain maybe another inch of clearance for longer leg drivers since your leg is at a bit more of an angle rather than straighter.
It wasn't that bad of a job to do the adjustment although you need a Torq #40 wrench which you may need to get from your local hardware store (ACE carries them). I used both a socket as well as a "L" wrench with the torq 40 spline. The bolts into the monocoque are longer and the socket makes the job a lot faster than trying to use that L wrench...but you may find the L wrench is better for breaking the screw free and doing the final tightening. My seat screws were pretty tight so I used a short piece of tubing to make the handle of the L wrench longer. I have a couple of breaker bars but they were too long for the limited working space.
WARNING...the screws (fine thread) go into aluminum in the floor so make sure that the screws are not cross threaded when you put them in.
It works so well I am going to do the same thing for the passenger side. By the way...I considered putting the front at the highest point and the rear at lowest....I did a mockup of that and was too extreme for me. Also....make sure you use some towels and pads around the seat so you don't scratch the sills, carbon fiber etc. as you do the work. There are two connectors under the seat that don't have to be removed to do the work....one is for air bag and the other for seat belt I believe....not sure which but this might be a chance to disconnect the seat belt buzzer. IF YOU DO THOUGH MAKE SURE YOU DISCONNECT THE CAR BATTERY....YOU DON'T WANT TO ACCIDENTLY TRIGGER THE AIR BAG! That would definitely not make your day.
First...after a week of driving the car I definitely prefer the new position as it supports the back of my thigh better and seems to support by rear end better. The other favorable change is that it seems to give me significantly more view of the instrument cluster. Before the time at the top of the display was barely hidden by the steering wheel. Now I have about 1/2" more visibility. I think with the tilt it may gain maybe another inch of clearance for longer leg drivers since your leg is at a bit more of an angle rather than straighter.
It wasn't that bad of a job to do the adjustment although you need a Torq #40 wrench which you may need to get from your local hardware store (ACE carries them). I used both a socket as well as a "L" wrench with the torq 40 spline. The bolts into the monocoque are longer and the socket makes the job a lot faster than trying to use that L wrench...but you may find the L wrench is better for breaking the screw free and doing the final tightening. My seat screws were pretty tight so I used a short piece of tubing to make the handle of the L wrench longer. I have a couple of breaker bars but they were too long for the limited working space.
WARNING...the screws (fine thread) go into aluminum in the floor so make sure that the screws are not cross threaded when you put them in.
It works so well I am going to do the same thing for the passenger side. By the way...I considered putting the front at the highest point and the rear at lowest....I did a mockup of that and was too extreme for me. Also....make sure you use some towels and pads around the seat so you don't scratch the sills, carbon fiber etc. as you do the work. There are two connectors under the seat that don't have to be removed to do the work....one is for air bag and the other for seat belt I believe....not sure which but this might be a chance to disconnect the seat belt buzzer. IF YOU DO THOUGH MAKE SURE YOU DISCONNECT THE CAR BATTERY....YOU DON'T WANT TO ACCIDENTLY TRIGGER THE AIR BAG! That would definitely not make your day.