New S85 V10 and E60 M5 horsepower record set by Gintani supercharged Stage I E60 M5 - 646 wheel horsepower on a Dynojet
Congratulations to Gintani for setting a new S85 V10 horsepower record with their E60 M5 Stage I supercharger kit. You may recall in December of last year the completed kit was announced
and a dynograph from a Dyno Dynamics was posted showing 530 wheel horsepower. BimmerBoost stated these numbers at around 6.5 psi of boost would be in the ~600 wheel horsepower range only for some fanboys running a competing kit to snicker.
Well, a new horsepower record has been set with 7.2 psi of boost on a Dynojet showing 646 wheel horsepower in STD correction. Very, very impressive results for a fairly mild Stage I kit. Additional modifications on the car are secondary cat delete and Eisenmann rear section. The headers are stock.
There is no Stage II kit being offered at the moment although it may come later.
Congratulations to Gintani. Dynographs, pictures, and video below.