mercredi 25 mars 2015

Unsprung weight saved going from 19" to 19"

Hello



Just wanted to share this. I thought that my euro 325i with M Sport suspension felt a bit heavy when driving around, handled well and so forth but missed something. Almost like the struts/shocks couldn't handle the weight of the car. Thought about down-sizing the wheels to 18" but when I ordered the wheels from a dealer they ran out of stock on the 18"s so I got a set of 19"s for the price of the 18" (hey, can't complain). Thought this would mess with my weight-savings plan though.. but as it turns out I saved a total of 13,72kg ~30,2lbs switching from AC Schnitzer Type IV Racing (probably made in Taiwan) 8,5x19" ET 33replicas with staggered tires (!) 235/35 & 265/30 Kumho Ecsta SPT to 8,5x19" ET35 Ocean Caribien (aka Alufelgen SF-71) with 235/35R19 Michelin Pilot Super Sports. I knew that the wheels weighed 10,7kg/23,6lbs and the tires a little bit less but the weight of the old wheel set was unknown. Must say that the car felt lighter (in a good way) after the change, handles speed bumps better (less sluggish behavior) etc.. the butt-dyno says F YEAH but it might be placebo.. I'm happy nonetheless. :happyanim:

The next step must be Apex ARC-8's .. :D



Anyone else got a unexpectedly high weight savings when changing wheel sets?







Here's some pictures of the weighing for reference:



AC Schnitzer Type IV Racing replicas 8,5x19" ET33 & Kumho Ecsta SPT 235/35ZR19 91Y. 23,58kg ~52lbs







AC Schnitzer Type IV Racing replicas 8,5x19" ET33 & Kumho Ecsta SPT 265/30ZR19 93Y XL. 25,22kg ~55,6lbs





Michelin Pilot Super Sport 235/35R19 91Y XL + Ocean Caribien [aka Alufelgen SF-71] 8,5x19" ET35. 20,97kg ~46,2lbs





A positive suprise is a good surprise. :thumbsup:





..btw a set of the old Alufelgen SF-71 (sold as Ocean Caribien in Scandinavia) 8,5x19" cost around $820 in Sweden and equivalent VMR's (V710?) around $1650... :scared0016:




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