So all of you say that a bit of tuning is ok but not too much. What about ECU and TCU remapping. Lot's of owners have said/written that they would better stay away from that while those who did it said that the engine runs smoother,she has more low end torque and with the TCU remap the clutch wear has decreased,gear changes became smoother in normal driving and a bit faster in Race mode,but the mojority tells they did it in order to be able to give a bit more last to their clutches,so any opinions on that?
Ferrari, like any one else, must seek the best balance of emissions compliance, reliability, longevity, performance and be as user friendly as possible. With the Drive By Wire throttle cars like your F360, the throttle plate response rate from the throttle pedal is usually progressive. That ensure nice smooth starts and reduced emissions as the engine is throttle up more gradually.
Manipulating that action makes the car more responsive, the clutch engage more positively, more quickly and gives you the sense of a big boost in performance. Some tuners go so far as to over drive the throttle response so when you request 25% throttle, 35% may be applied. This make the car feel very quick, when really it's the same. It's just a change in perception.
If you're going to make changes like this or the power add on systems, you need to remain aware of the importance of engineering. There are a lot of tuners out there that can produce big numbers and put together great advertising campaigns, but they haven't necessarily taken the time to make sure the entire package is tuned together and that reasonable measures are taken to allow room for error and safety. The biggest advertised numbers or bets priced package isn't always the best or smartest option. Many time there is a lot of important R&D left out of the product which is very important.
A company like Novitec takes the time to make sure their system aren't outputting power beyond the torque holding capacity of the transaxle, for example. They aren't tuning the air/fuel ratios right to the very edge, they are leaving some safety margin. Their systems may be the most expensive and may not put out the most advertised power, but they have the most care and effort invested into the development to reduce failures, headaches and disappointment.
A lot of these kits are designed to just rocket the car down a straight road too. If you're tracking the car a lot or frequently making runs through the hills and canyons, the power curves of some of these systems may not prove to make the car more exciting, jut more difficult to drive. Also keep in mind that few of these companies really advertise how reliable the cars are afterwards. They just advertise power and price. Is it worth it to you to turn the car into an unreliable headache?
The good builds I have seen have been custom builds and costs start around $100k USD. If you're doing a lower end off the shelf bolt on package, find some guys that have done it already and aren't getting hand outs from the builder to talk good about their products.