let say there are two sets of 19" wheels, and one weight 28 pounds each and the other weight 18 pounds each, so there is a 40 pounds different on 4 wheels not including tires, now would that make any different when shifting and accelating?

 

yes, absolutely. unsprung weight is bad, and heavy rims will make the car accelerate slower, stop slower, less responsive in turns, and kill your mpg.

 

Of course it makes a difference. The heavier wheel and tire combo will accelerate a little slower, will take a little more power to get up to speed and make the car a little slower and a little less fuel efficient. It is physics nothing you can do about it. Will the difference be noticable? Likely not.

 

well I was going to order a set of TRD 19" or 5AD SF:5 19x8.5 and 19x9.5, not sure if they weight a lot though.

 

Both will lower your acceleration, turn-in responsiveness and mpg, but get the 5AD wheels... they look incredible.

 

x2, 5AD looks better

 

How many pounds are they anyway?

 

Never seen any published weights, send them an email & ask:

info@fiveaxis.net

 

I will say you will notice a difference in those weights, but it depends out you drive the car. I'm from more of a racing background, and we buy "bigs and skinnies" other words, skinny light wheels tires in front and light wheels fat but light in rear, and the quarter mile times will be significant. If you pay attention to your car, and especially if you race it around. This goes for other performance issues to, turning, braking. It is physics, wheel weight/rotaional weight I think I remember some where around 9x the effect of static weight, so 1lb rotational weight turns into 9lbs. That adds up really fast, before you know it its like having a large friend maybe 2 in your car with you at all times. This goes for brakes too, anything rotational/unsprung.