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08-25-2014, 09:04 PM | #23 | ||
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Once again, thx for the reply. I tried to go over the same bump over and over under Normal and Sport+. Unfortunately, I really dont feel the different. Sport+ definitely makes my car sounds better, with tighter steering, and more responsive throttle, but not the damping. =( My question is, what springs are both of you using? My theory is that since I have the H&R springs which compress the dampers/shocks/struts for over 1.2" and maybe it is already at the level where the adaptive M suspension isnt able to do anything. correct me if I am wrong, but i shell continue testing maybe exiting ramps on the same speed under both Normal and Sport+. Thanks again guys, J LAU
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08-25-2014, 09:20 PM | #24 | |
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Hi Nkc, Really like your car and setup with 20" rims. Im surprise it is that much worse on wet surface with the 20". May I ask what tires were you using on the 20"s? and how are the sway bars? I find my car roll way too much >.< I dont have confidence driving fast on the canyons. THX, J LAU
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08-25-2014, 09:21 PM | #25 | |
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08-26-2014, 01:03 AM | #26 | |
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Yes, maybe the lowered ride height and different spring rate makes the difference in damper settings less noticeable. |
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09-21-2014, 01:09 PM | #27 |
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I am ready to pull the trigger on my set of H and R Lowering spings for my 09 base suspension Z'ed
The part number that come s up as the only spring set available from H and R for my Z , again base suspension is H and R part #- 28987-1 However I also found the below H and R comparison charts H&R Springs Comparison Chart Application Lowering Handling Ride Alignment Fitment Considerations OE Sport Springs Handling -Average Everyday Driving drop Drop -Subtle .025"-1.0" Drop Fitment-Similar to O.E. Considerations. Same as New O.E. Same as O.E. None Sport Springs Sporty Everyday Driving Lowering Average 1.25"-1.8" Benefit : Less Roll/Squat/Dive Ride Firmer than O.E. Fitment- May Require Alignment Kit Considerations-May Require Alignment Kit Race Springs Track Use, Limited Street Average 1.9" Drop Very Little Roll/Squat/Dive Very Firm Alignment Kit Recommended May Require Corresponding Suspension Modifications Super Sport Springs Sporty Everyday Driving, Occasional Track Use Average 1.75"-2.3" Moderate Roll/Squat/Dive Sporty Alignment Kit Recommended May Require Alignment Kit is the part # 28987-1 considered the Sport Springs? as this is the option I would prefer? Has anyone installed theses. I can easily rent the spring compresser for the front. Are any special tools required?
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2009 BMW Z4 35i/SMG/DCT/Premium,Cold, Sound PK/Com Acc/Ash/PDC/Wind Deflector/Smoked Reflectors/Red Calipers/Cl Mask/M Series Grill/6000K LED's/De-Badged/M Pedals/CF Mirrors-Engine Cover/Stubby/20% Tint/H8 LED's/LCI Side Markers/Sniper Sprint Spoiler/VMR V710/H&R Sport Springs/KN.
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09-23-2014, 11:47 AM | #28 |
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That's the SPORT version which is the only available H&R springs for the e89.
No special tools for installation. Just need an alignment after they settle (~1k).
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09-24-2014, 08:28 PM | #29 | |
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