Hurricane 6255-900 A/R 0.83 Turbo Hurricane 6255-900 A/R 0.83 ball-bearing top-of-the-line Turbocharger is perfect for Street use and Track racing up to 900hp with the fastest possible spool times. Hurricane 6255-900 A/R 0.83 Turbo suits 2,0 to 3,5-liter engines and produces 550-900hp on Gasoline, -990hp on Ethanol or -600hp on Diesel. Smaller engines (2,0-2,8L) will get fast spool times with the 55mm turbine, while bigger engines (2,8-3,5L) will get even faster spool times. The A/R 0.83 turbine housing gets you the fastest possible spool times. Compressor A/R 0.72 61.75/76.6mm Speed sensor outlet. Clamp type : 6-Bolt clamp kit (included) Anti-surge : Yes Speed sensor port : Yes Vacuum port : 1/8 -27 NPT Inlet hose diameter: 4 " / 102mm Outlet hose diameter:  2" / 51mm CHRA Bearing: Dual ceramic ball bearings Oil inlet : Special thread for ball bearing turbochargers to not get mixed with journal bearing oil inlets. Adapter with 1mm restrictor hole. Oil outlet : 38mm CC Bolt thread : M8