Quote:
Originally Posted by alscks0414
FF04 and FF01 around the same weighs;
19': 22.4 lbs Front/ 22.6 lbs Rear
20': 23.8 lbs Front/ 24.6 lbs Rear
437M
19': 23 lbs front/ 23.37 lbs rear
If you are considering 19' they are lighter than stock 437M.
Weight should be considered along with tire weight.
If you are considering fitting the same tires, then mind only wheel weight.
Rotational force and inertia becomes very huge even there is 2 lbs different in front (both right and left) when you are comparing heavier and lighter tires.
I dont want to go too deep into physics class and you can find those on youtube easily.
Here is the one example of weight of front (7.5 lbs per a wheel+tire set) and the rear (7 lbs per a wheel+tire set) bringing huge difference in acceleration high MPH pull + breaking distance.
Attachment 1803306
We are not talking about 7.5 lbs difference (unless you are looking at changing 20' wheels with wider aggressive setup). But 1~2 lbs still will contribute to difference that your buttdyno will be able to tell such difference.
Edit*: Picture only shows the straight line figures but cornering will be affected as much as straight dragstrip. |
Many thanks for the input/info
Interesting maybe I had the wrong information, i had the OEM weights as :
Front 19x9 21.1lbs
Back 19x10 22.7lbs
Corrected/ Checked - Front 21.9lbs, Rear 22.5lbs
Plus i then had the HRS coming in at:
Front 19x9 23.8lbs
Corrected/ Checked - 23.4lbs
Back 19x10 24.40lbs
Corrected/ Checked - 24.5lbs
Hence i thought slightly more weight to them
Will double check the figures
Thanks