Join Date: Mar 2010
Location: Grande Prairie, Alberta, Canada
Send your sheave off to mad mike from Grizz Central. He machines the bottom end of grizz ones, id assume its the same as the rhino (not the same as the machine job done for speed over here). With a 1mm shim, and the machined sheave from him the starting gear ratio is 30% lower. Pair that with an EPI white, and some 14/16g weight combos, and you will turn 31s no problem.
Id assume top end speed isnt a factor for you, but if it is, he can mod the cam plate aswell to make up for his bottom end machining, to not lose any top speed.
Just looked the 700s are the same part numbers for the cam plates. same with the 660s. But it seems the sheaves have a different part number. Not sure the difference. But Im sure mike could tell you, or he could get ahold of Coop45 to find out. Coop45 has been doing low end sheave mods for years on yami, ac, and suzuki. So im sure he would know, aswell as how much to take out. He quit doing it as it was taking too much time away from his family, and passed the torch onto mad mike with all his specs.
07 Grizzly 700, 11:1 Stock Bore, G axles up front, 27" 589s, powermadd handguards, heated grips, One off dual 2" intake snorkels, 2" CVT snorkels, and a can-do attitude.
Last edited by N49ATV; 06-02-2010 at 10:09 AM.