Performance Evaluation of VCR CI Engine Using C-D Intake Manifold With Internal Grooving Journal title: International Journal of Mechanical and Production Engineering Research and Development (IJMPERD ) Authors: T. N. RAVI KANTH, SUDHAKARA REDDY KALAVAPALLI, B. PHANI KUMAR, VIJESH RAJ MATHUR, M VISHNU VARDHAN Subject(s):