Well you got a good sales pitch and all,but unless you have measured bearing clearances on the crank on high mileage 1nz-fe's and then compared it to normal wear on a engine with the same amount of miles with the pulley,its all speculation and crossing fingers. Road race cars are not expected to live long lives and typicaly don't if they are taken far from stock. So saying the thing lives though road racing is not the type of thing I'm talking about. I'm Talking about spinning a bearing at 120k and being out a motor,loss of oil pressure etc. I'm not claiming to be an "expert",I do however work on engines and know their function.