Keywords: Roots Supercharger efficiency map.jpg I created this for the supercharger article ° ± × ÷ · § Motorhead 00 25 3 September 2006 UTC en wikipedia 2006-09-03 Motorhead wikipedia en graph Motorhead original upload log page en wikipedia Roots_Supercharger_efficiency_map jpg 2006-09-04 05 14 Motorhead 700×717×8 81667 bytes <nowiki>I created this for the supercharger article ~~~~ </nowiki> 2006-09-03 00 25 Motorhead 500×512×8 49762 bytes <nowiki>I created this for the supercharger article ° ± × ÷ · § ~~~~ </nowiki> Roots superchargers |