MPG BILLET STAND Systems

AFR, Brodix, Canfield, Dart, Edelbrock, RHS, TFS, World BRODIX TRACK 1 NHRA "August Special" Going Fast

 

This website is focused on dispelling the myths and rhetoric about rocker geometry. It's written by an engine builder for engine builders, and relies on results from you testing this "theory" yourself, rather than saturated advertising that tells you nothing. No matter who's rockers you use, if you study both the "Installed Geometry" and "Design Geometry" principles here, developed and Patented by Jim Miller, then at the very least you will get the most from whatever brand rocker you're using.

Precision Geometry was developed for roller rocker arms by Jim Miller in 1973 and Patented in 1982 to define MID-LIFT geometry as the standard for any serious high performance OHV engine. For over 20 years MID-LIFT geometry has been a closely held secret by competitors in the know, as well as a major point of contention for the well advertised "name brand" companies who offer less efficient designs. These well known companies spend lots of money on advertising, so when top name magazines finally get around to correcting their prior mistakes on rocker geometry, it's no surprise MID-LIFT is dismissed as “theory,” or as only one idea of many being used, implying there are equally good options. An example of this is by Circle Track magazine. (See: MEDIA & POLITICS)

E-Mail: MILLERROCKERS@AOL.COM

END THE CRUELTY INFLICTED BY THE HUMANE SOCIETY of the U.S. (HSUS):

93% of HSUS money YOU give goes to LAWYERS, LOBBYISTS and Washington Politicians; NOT animals.  GIVE NOTHING.

Jim Miller of MID-LIFT or Miller MID-LIFT, and MID-LIFT Geometry, is the principle behind Rocker Arms by Jim Miller, Jim Miller Rockers, Roller Rockers, Miller Rockers, the upcoming and soon to be released correct geometry Miller Harley Rockers, Miller Evo Rockers (MER) and Miller 4-Cam Rockers (M4C), as well as MID-LIFT Precision Geometry, and has been referred casually as Jim's Rockers, or simply Jims Rockers for more than 30 years. New products upcoming include the Chevrolet LS1, Chevrolet LS2 and Chevrolet LS3, as well as Harley-Davidson and S&S Evo and Four Cam engines. MID-LIFT.COM is the ultimate rocker arm and valve train tech for automotive, marine, motorcycle and off-road high performance engines. Jims rockers offered true precise MID-LIFT geometry not found anywhere else!