BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > All-Wheel-Drive (Xi / xDrive) Talk > suspension / tires rough enough?

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      12-30-2013, 11:15 PM   #1
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suspension / tires rough enough?

Running 17" ssr runflats at recommended 33/36 cold psi, cannot find any worn suspension... minor bumps jar the car like I jumped a hill on a dirt bike. I know runflats add some stiffness but they're on my vette and nowhere near this harsh. You guys running lower pressures?
-2008 e90 335xi, 6AT
-2008 Corvette coupe MN6
-2012 Cruze LTZ 6AT, gf's rig
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      12-31-2013, 12:42 AM   #2
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The recommended inflation pressure is on the inside of the driver door and i just go by that. Im on lowering springs and shocks and its a bit rough during the winter when i still have my runflats on (non RFTs in the summer).. It might be the cold weather is changing the viscosity of the oil in the shocks and making it harsher. I totally understand as the roads where I am are probably just as bad as michigan's. i guess its just something we have to deal with
2007 328xi - Sport Package - Cold Weather Package - 6MT - AA Stage 2 Tune - BMW PE - Secondary Cats Removed - 3 Stage Intake Manifold - AFe Stage 2 SI Intake - Cyba Scoops - CDV Delete - H&R Sport Springs & RSB - Bilstein Sport Shocks - 335xi Brakes, Black Kidneys - CF Mirror Caps - Custom Gunmetal Powder Coated M-Parallels
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