|Being a front-engined car, the Fisher Fury R1 requires a complex 4-2-1 tuned stainless-steel manifold that leads out of the engine bay and over the chassis, then along the side of the car, through the left-hand-side sidepod. The space is severely constrained and care has to be taken to avoid burning the surrounding fibreglass bodywork. Their is also a lot of heat soak into the passenger side of the car. I had a bespoke 4-2-1 manifold fabricated, which liberates the maximum power from a bike engine. The packaging in a mid-engined car would mean I could do this using a lot less metal, thus saving weight. There will also be more space for the exhaust system and much greater free space around it.|
The exhaust silencer on my Fisher Fury R1 was and is one of the most problematic aspects of the car. Firstly, a 2003 fuel-injected engine is loud and requires a large silencer, which adds weight. Secondly, it also needs a catalyst to pass the IVA test.
My plan is to have an exhaust silencer and catalyst which is easily swappable. I envisage a range of exhausts for road and track use, much like I have for my Fisher Fury R1.
With a rear engined car, it is possible to use a simpler exhaust system and to also route the exhaust outlet down into the ground. This makes the car quieter.