Miata Turbo Forum - Boost cars, acquire cats.

I've heard two pounds. Of course, it matters the distance out. Weight close to the hug hardly rotates. Engine weight would count for more, since you have to accelerate it 5 times in a 1/4 mile (4 times?).

Quote:

Originally Posted by Savington (Post 261171)

Uhhh no it's not. It's 2lbs for every pound of unsprung weight, not 10.

Remember, it's rotational weight. There's no acceleration gain by having hub/ caliper, or control arm reductions (at least no gains over 1:1), but you will gain a lot in handling, so it's still very worth doing.

I know when I shaved 10 lb/wheel I definately felt the gains in acceleration, and the tires stuck to the ground in handlig. It's the best thing you can do.

Quote:

Originally Posted by Dark Wanderer (Post 261174)

As for the jack and spare tire, it's sure pretty heavy but i make 90% of my driving on a highway and I have not portable phone so it's not a pretty good idea to remove them...

I've got a pump, patch kit in my car. Weighs very little, plus helps me top off the tires when they are low or before a twisty road. And now I have kept the jack and lost the tire.

Or, think about this: If you'd spent $300 to lighten your car, spend the $300 on a year of cell service, and lose the tire. :-)