550 Dyno Run

As we're prepping our '99 550 for winter storage and possible sale next year (my wife wants a Lusso) we decided to have it put on a dyno to see if 50K miles had degraded the horsepower. The answer is an absolute no. The car makes as much, if not slightly more horsepower than when new from the factory 22 years ago. It's putting out 430 brake horsepower which converts to almost 500HP at the crank. So it's still at the as factory new horsepower of 495HP which really says something about Ferrari engines at higher mileages. This explains why it still pulls like a plutonium powered freight train to ultra naughty speeds. The extra horsepower may be coming from the Tubi exhaust system. I recommend having a dyno run. You will hear your car in a way you never do as the driver. It's a thrilling sound you will never forget.

Link to video (crank up your speakers...):



This is on the dyno at Ultima Race Works in Crystal Lake, Illinois (great folks).

https://lh3.googleusercontent.com/qEVSFtxBAGpDJTnFx7dRA4EFzwWHGFMg03lmWTVUiWYx2bgSxUHGx3yvDSgjmZfDgbxBAzBf-kuzG039fDzwJw2DAQMAYgYdxCVsaTnHVGvPGROJoPQuOm02n1Yc65J4ZlVB-5XGUOjz8J5wBEwX2ojo8M5upDuT5EWpievvNyq5LRobbuxP8Emy4_yf9Dh633G2Pl2LsIWVz0Kq8wCsnLFrzt5Z3jr4n7gi1UZF9v6b8zvIgnu06yBoaixIZds5ngsadEOkzhPC8XLIMFONPNPxjyGh9q9cWrE9oIKtRZSRXje_SdpZgJBgC8KP7lX1iB3lolLpxGI0v9_YYZMgE9V5NvhE37Zgslwg-pdy1RFy6XjoWUQHlYEZSSDoVWdTItBa_k88c_7U_CeZ2uw9IfFGBOD4WnhJybp4BJaz-n7HbQDXfln9xYLv8cBnME-CuLoOI4_LlyHOGw_FRGGOiKY9d2mfnQsoEW4Jm-Od2JeBu-oYjupuajzAUiyzCVoCeHg37Oy2Sx8oIwXl-uiBzYZvQDqFDItONkp6EZAz-skcwdviDXHSwN7eopEMO0TOwzt4B3vyRjyISmZYyLT3UWhITemBd7ZxGaAn4fJW2I7l3eX8vNbmxtZ4wNRnhv_IWVKp4mXPW5nVz75dRePk7H4R266xKqqvtjyIfCn4Ct7oKWQtIfYcyel9N6nMQb4kmIj0UEIG2-WT3Uw=w2886-h1300-no?authuser=1

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Wowza. "100K miles"? This makes you and your car legends! Any major issues? The only non-service thing of note we've done to our 550 at a 'mere' 50K miles is have the steering rack rebuilt as Continental AutoSports (Chicago) had found a small fluid weep during a periodic inspection last fall. We sent the rack out to Advantage Steering near Palm Springs to be rebuilt (they do high-lines like Bugattis, Ferraris, etc.). They did a *fantastic* job. The steering is subtly sharper and feels more dialed in than before.