Quote:
Originally Posted by TahoeM3
Now think about this...I talked to one of the forged wheel companies to get a weight on 1-piece forged wheels in stock sizes. The fronts would be around 26 lbs and the rears 29 lbs...so each front is 15 lbs lighter than stock and each rear is 13.5 lbs lighter than stock. Adding it up, that's a whopping 57 lbs of rotating unsprung mass being dropped. Add in the tires (using Michelin Diamaris as an example), and that's an almost unbelievable 93 lbs of rotating mass that can be dropped. I've never heard of anything like that. In most cars, the only way to drop 93 lbs of rotating mass is to remove the wheels completely. But then the car wouldn't exactly be faster. :-)
I can't imagine what this thing can do with chip AND lightweight wheels/tires. Mid 11s? The only caveat is its probably best not to go with race lightening or anything along those lines for any aftermarket wheels as that may make the wheel too weak to handle the X5's weight. But those numbers I got for weight were for standard 1- piece forged.
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I agree. Keep in mind this is a 5500lb tank. there is probably a reason the factory wheels are so heavy duty. I had very lightweight wheels on my drag car. But those wheels were not able to be driven on the street. Potholes would have taken them out on the first hit. A set of aftermarket lightweight wheels on this truck would probably not live very long. It hits potholes very hard as is.
I think I am going to leave the factory wheel(maybe powdercoat them) and get a set of Conti all seasons and just leave it like that.
I do think i will pick up a set of K&N drop ins. They cost very little and it can't hurt.