The ultimate street/track turbo cams to suit 400-700hp SR16VE/SR20VE engines. Suits turbo sizing 54-67mm. 184-ST has the same primary lobes as the smaller 184-LT so maintains good street drivability off-VVL. VVL activates around 5.5k rpm pulling to around 9k rpm depending on engine. Great with E85. Kelford Cams recommend KVS10-BT valve spring kit. Primary lobe spec: Intake: 250°/10.2mm | Exhaust: 246°/8.3mm