Minor improvements to under car turbulence, but probably only going 90+. Touring cars spend tons on wind tunnel development, and will probably have a fully flat underside to shave off a few fractions of a second per lap. They can make your car look more individual, but I wouldnt expect anything from performance.

The best ways to make a 6 faster are, expensive tyres, improved brakes, suspension refresh, and some track lessons.

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Spanner Monkeys Monkey Spanner
Forum Search Clicky

No point with nitrogen as every time you top up the tyres you'll be reducing the nitrogen % content. It's only the uber geeky too that use it.

A splitter will work better if it extends under the engine to a flat underbody and a diffuser. A simple corner splitter won't do much at all.

I'm looking at making a ¼" plywood one with a view to moulding it out of carbon when i get back into work, would cost more than i can afford at the minute. Also need to take engine bay ventilation into account too, needs to create low pressure under the subframe area to draw out the hot air. A closed splitter risks overheating as the engine bay air stalls and can't go anywhere. Bit of geekery but will be fun experimenting...

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Bye bye Sundance Kid

the nitrogen thing was a whim, heard about it on top gear, saw that quick fit do it for a pound a tyre. A bit pricey but as a refrigeration and ac engineer i can get nitrogen as well as many other gasses for free : D

sounds like a rather laborious process but like me if your hearts set on it go for it, out of interest i want a phase 1 carbon fibre bonnet, can you make one and how much?

Thanks, james

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the world is changed by people in sheds