Seats

The seat is the primary sensory interface between the most of the driver and the car. It has to provide even support and over a wide contact area. The best way to achieve this in my view is with a hard surface, moulded to the drivers shape. Padding simple alleviates pressure points but muffles the feedback. Remove the pressure points and you don't need padding. A challenge when using a hard surface to the seat is to ensure it doesn't feel cold though.

I'm expecting to save more than 5Kg in weight with the seating, by using carbon-fibre seats that are directly floor mounted.

The choice of seat has a huge impact on the way a car feels and involves the driver.

Tillet W2 seat Having lived with a Tillet W1 seat for over ten years in my Fisher Fury R1, my view is that a solid shell seat with no or minimal padding is the best option. Contrary to what many people think, these are by far the most comfortable and supportive seats, if they are properly shaped to the driver. Despite being a hard surface to sit on, your weight is evenly distributed and thus it is very comfortable over long distances. Being a hard surface, you get full and undiluted feedback through the seat. The Tillet W1 is a half-height seat and this was a compromise to save money.

Tillet B2 seat The B2 - Ultra Lightweight Race Car Seat is the sort of thing I have in mind for this new car. Both the driver and passenger seat need to accommodate a full 6-point harness. These seats weighs just 3Kg uncovered and just 4Kg with suede insert panels.

The driver's seat in my Fisher Fury R1 is actually on runners and these added a little weight to the overall installation. Because of the tapering cockpit, the seats can only move about 3" in total. Despite being tiny, the Fury wastes a huge amount of interior space by having a large transmission tunnel and the deep side sills (to accommodate an exhaust on the passenger side). The bodywork also wraps in at the top to take up a lot of space. With this design, a lot more space will be available and the cockpit will feel much more spacious. This means a wider choice of seats and more room for them to move.

I'm not planning to have seat runners though because of the additional weight. Instead, I plan to have multiple mounting points so that the seats can be fixed in a number of positions. This will be achieved by having 'runners' moulded into the floor. This will also strengthen the floor and increase rigidity.

I'm currently designing and building my own bespoke seats, to get exactly what I want. It is a double skinned seat over a vented internal frame such that warm air can flow through it. This includes warm air exit vents around my neck. It also includes integral speakers, adjustable head rest (for with helmet and without helmet use).

Harnesses

Schroth Profi II harness buckle The Schroth Profi II 6-point harnesses in my Fisher Fury R1 are perfect and with the additional space in this car, will work even better.

Harness Mounting Points

My had the optional 6-point harness mounts welded into the chassis but, the location of these is far from perfect. In particular, the mounts for the front harnesses take an awkward route. My plan is to improve upon this significantly. This will also allow shorter (and thus lighter) harnesses.

Top • Last page update: 27 Sep 2017