And it is relatively simple to do. Begin by purhasing a cold air induction system from one of your local performance aftermarket shops. You need the type that is fed by a flexible pipe into an airbox containing the air filter which then supplies the carburettor via another flexible pipe. You may have to do a bit of adaption to make this work. Carefully lay out the new parts and see where they can best be fitted in bearing in mind that the pipe entering the 'carb' MUST be straight on a vertical plane to the carb for about 10cm for best resuls.
There are two ways to source your cold outside air; (1) cut a hole into the cold air box built into your beetle body. (This is the compartment with the louvres immediately above the engine
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which draws in air from the 'slots' just below the rear window) Ensure that the pipe is secured and you will have an effective VW PERFORMANCE modification. (2) You can either buy a set of engine cover spacers, or make up a set yourself. This is what you see in the magazines where the top of the engine lid is open. Place your inlet pipe immediately under this open portion and it will be quite effective. Believe it or not You can actualy feel the difference this makes, especialy in cool evenings and during winter!
Why does this help your VW PERFORMANCE? Because the colder air feeding into the carb results in a denser fuel/air charge, (this simple modification can add as much as 30hp to a stock 350ci V8 engine, and as much as 2-3 hp to your air cooled motor under the right conditions. Clearly, this is another cheap yet effective VW PERFORMANCE modification that will add horsepower and torque to your motor.
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