Hi, just saw that the max rpm of Trail Gear pump is 7000 rpm. My Suzuki 1.6 16v makes my TG pump reaching over 8000 rpm. I need a bigger pulley on the pump. Ever occured to someone here? Does a bigger pulley exists? I know TG have many pulleys on their web site but none are over 4.5 with 4 ribs. I need at least 5.5 outside diameter.