Hier mal ein ähnlicher Test im 2.Gang von einem anderen User:
"My first linear performance mod was to throw on some 17x7 wheels from Advanti Racing. They are the Storm S1 with ET35 offset and supposedly weigh in at 14 pounds per piece. I wrapped them with Toyo R888R in 215/45R17 size which is one above the factory size. I read that the stock Abarth wheels were extraordinarily heavy for their size so I decided this to be an important performance and aesthetic upgrade.
The stock wheels and tires with TPMS weighed in at 42.0 pounds per corner.
The Storm S1 combo with TPMS weighed in at 35.3 pounds per corner. That’s a weight savings of 6.7 pounds x 4 = 26.8 pounds. That’s a little more than I originally expected so that’s awesome.
As you may know, losing 26.8# may not sound like a whole lot, but reducing that much un-sprung weight is going to make an impact on the general performance of the car from braking, handling, ride, and acceleration. I’ve always been a fan of reducing weight in this area of the car, I just never actually got around to testing how much it affected.
However, there are two variables at play here. On one end, we have the reduced un-sprung rotational weight, but on the other end, the 215/45R17 tires are .4 inches tall (in overall diameter) when compared to stock. My understanding is that when you increase the height of the tires, this increases the gear ratio as well. Doing so in a car with such little power can usually result in slower acceleration but theoretically higher top end speed with all other variables being the same. I was surprised to find that the reduction in rotational weight was able to counter this notion in our case.
Despite the higher gearing, the fuel cut off now is 63.4MPH (taller tire) vs. 62.4MPH (stock), the performance increased.
- Stock @ 60F - 3/8 Tank of Fuel
o 5.60 seconds, 5.18 seconds, 5.21 seconds, 5.68 seconds
[/quote]- Lightwheel Wheels/Tires @ 60F - 3/8 Tank of Fuel
o 5.52 seconds, 5.02 seconds, 5.20 seconds, 5.30 seconds
[/quote]
The biggest downside to this particular wheel/tire combo is that for some reason, you need a very thin socket to get the lug nuts on and the stock lug nuts are too short since the offset has pushed the stud length out. Tire Rack provided me with the appropriate lugs but they weighed in at 53g vs. 31g (stock) each. Overall, that’s 352g or 12.4 oz of increased weight. It’s not as significant because the weight is closer to the hub, but I will rectify this issue by upgrading to 949 Racing lugs which are supposedly 24g each and are 19mm socket size so you won’t need an extraordinarily thin walled socket to get to it.
Closing thoughts (TLDR). Reducing un-sprung weight in this car is a must, especially given the weight of the stock wheels. The average change in 25-62MPH was an improvement of 0.2 seconds in our test. I suspect that if I stayed with the stock 205/45R17 size tire, the acceleration difference would’ve been even more, but I prefer the wider contact patch and the way the beefier tires fill up the wheel wells."
Quelle