Depressed after putting 17s on, brb less power, less handling, less braking Options

[Mycurse180]

performance in all categories has decreased.

What have you guys done to remedy this problem?

I can definitely tell I need lowered now more than ever because of the hightened center of gravity.
My tires currently are 215/50/17....hopefully some 215/45s will give me a bit more of my power back.


blah.

[bmj67]

1lbs of rotation mass(wheels) = 10 pounds dead weight

so if u go fron 15lbs rims to 20 lbs rims its like adding 200lbs of sand bags to your car.. or the average weight of one adult

That's not 100% true. It depends on where the weight is added from the center axis. You can take wheel A and put a 2lb weight near the center axis and wheel B with 1lb on the outside edge and wheel A will still accelerate faster than wheel B even though it has more weight. Yeah both will accelerate slower than a wheel with no added weight but it won't be like adding 10lbs to every 1lb. At most maybe 2-3lb to 1

[Galcobar]

1lbs of rotation mass(wheels) = 10 pounds dead weight

so if u go fron 15lbs rims to 20 lbs rims its like adding 200lbs of sand bags to your car.. or the average weight of one adult

That's not 100% true. It depends on where the weight is added from the center axis. You can take wheel A and put a 2lb weight near the center axis and wheel B with 1lb on the outside edge and wheel A will still accelerate faster than wheel B even though it has more weight. Yeah both will accelerate slower than a wheel with no added weight but it won't be like adding 10lbs to every 1lb. At most maybe 2-3lb to 1

However, for our purposes the additional mass is almost always at the outer edge. The wheel will have longer spokes, but the majority of the additional metal will be in the barrel, to which the tire mounts. The wider and stiffer tire (more rubber and a denser formulation) comes with a higher weight as well, and this is even further out towards the edge of the rotational mass than the wheel's added weight.

Plus-sizing isn't just a matter of putting on heavier wheel/tire combinations. It's also about moving the weight farther out from the centre of the rotating mass. It's a double-whammy: higher weight, higher leverage. It's the inverse of the same principles which make longer wrenches capable of multiplying the same force. Foot-pounds -- plus sizing increases both sides of that equation.

This post has been edited by Galcobar: Jul 29, 2011 - 1:41 AM