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08-15-2019, 06:46 PM | #1 |
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Hey guys, I'm gonna get a rear wing for the car for track days, something in the 66"-67" range APR or Bimmerworld
I have adaptive suspension and want to keep the shocks for now Looking for ground control springs/top plates kit Thinking of 450F/750r What's your guys experience on track with rear wing? What rear spring rate would you recommend? I want to get springs which are in the range which the shocks can handle Getting CS coding soon if that matters I mainly use the car for lapping, not a daily, confort is not a priority My Platform: F82 M4 2018 Base Tires - CUP2 or Supercar 3R Thx
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08-16-2019, 08:02 AM | #2 |
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How does the car currently feel cornering over 100mph? If it's a little on the loose side I'd say don't worry about changing spring rates. You aren't adding much aero with any of the single element stuff (maybe 100-200lbs depending an AoA and wing choice) and with the adjustments available you can dial it in as you see fit. The biggest thing for me (on my STI w GTC300) was the reduction in rear lift which I'm guessing will help the M3/M4 as well.
I still have that wing sitting in my basement and it looks like it will fit on the M3... |
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08-16-2019, 08:10 AM | #3 | ||
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I was thinking of getting the 450/700 or 750 and testing from there, either way eibach springs are cheap and as I do all the work myself I can always order some 800-900 extra rears and mess around But this car can benefit from rear aero properly at speed I have a front splitter and rear diffuser already
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08-16-2019, 08:18 AM | #5 | |
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Yes certainly I will test the setup for at least 200-500 track Kms before messing around with things
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08-16-2019, 06:42 PM | #8 |
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It's a rather personalized response based on my needs but I would strongly suggest anyone who has serious questions to call ground control and discuss with them. Very knowledgeable and lots of R&D behind their products and answers.
I'll be going with ~400f&~750 but it would apply to my setup
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08-16-2019, 08:56 PM | #9 |
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In my experience, you'd really need to significantly upgrade the dampers to fully appreciate the benefits of increased spring rates and aero, especially on higher speed tracks.
However, I think you might be fine with the stock dampers since those spring rates aren't that high. Keep us posted as how it feels.
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08-16-2019, 08:57 PM | #10 | |
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