Well, nothing really – they’re certainly not perfect, but they can make your car make lots and lots of power. On the negative side, they can reduce the response of the throttle and make more heat, but even if you really, really don’t lke turbos, you gotta admit that all of the fastest cars have turbos (that is, they’re turbo charged) and most cars that come off the production line are now fitted with turbochargers as well. There’s a very good reason for this – having a turbocharger means that your car will perform that much better. And a turbo won’t cost as much in the build stage, have less stresses on the engine, and there’s going to be more torque produced on a much, much wider powerband.
Compared to a supercharged engine, a turbo will give more overall power for any given boost pressure, often more midrange punch, and is still usually cheaper to build too. And finally, compared to nitrous, while a turbo setup will cost more money initially, nitrous gives no performance advantage aside from at full throttle, it’s much harder on the engine, and unless you’re just using your power very occasional mishimoto radiators, it will soon cost you a fortune in nitrous refills; especially if you’re adding the massive amounts of power a turbo can give you. But best of all for all of us completely addicted to tuning and modifying, nothing comes close to a turbo for upgradability, so if you’re bored of your current power level, or just can’t help tweaking things, there’s almost no limit to the upgrades and power levels you can achieve with a turbo.For further info, try www.nrgperformance.co.uk