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Tracking / Autocross / HPDE / Drifting What these cars were built for! |
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07-25-2017, 10:37 AM | #1 |
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APR GTC200 Setting
Anyone running the GTC-200 wing? Installed mine and have it at the lowest setting, the base plate is obviously tilted (due to trunk design) and am wondering if the wing angle needs to be adjusted and if so how much. On my previous cars, I'd get baseline from the known race company (Bimmerworld) taking the guesswork out but would appreciate if folks running it can chime in on the height they have tested and their findings.
TIA Lutfy
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07-25-2017, 11:14 AM | #2 |
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I'm no aero pro and have no first-hand experience with it. That said, you probably want to share more information like other aero modifications, suspension setup, tires, etc. I see from your signature you're competing in time trials, so that is helpful.
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07-25-2017, 11:17 AM | #3 | |
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Cheers, Lutfy
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07-25-2017, 12:09 PM | #4 | |
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I have played with 3 settings on the wing. Full angle, minimum angle, and middle. I found my car understeered like a pig at full angle, understeered like a smaller pig at medium and had a small understeer at minimum angle. I added hood vents to the car and the aero balance changed, now its slighly loose at minimum angle (very very small, its almost all neutral) with the dampers being set softer in front than rear, and its about neutral with a hint of understeer if dampers set harder on front. Regarding speed traps (from videos and just eyeballing the speedo before braking on straights), my top speed drops by around 5-8mph on a 100+mph straight from maximum angle, to minimum angle. Regarding lap times, Im around 1sec per minute faster with the wing at minimum angle vs maximum angle. Middle angle was like maximum, but less. Meaning less drop in lap times, less drop in speed, less understeer, but still worse than at minimum angle. Hope this helps. |
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07-25-2017, 12:16 PM | #5 | |
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Cheers, Lutfy
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07-25-2017, 12:20 PM | #6 | |
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07-25-2017, 12:56 PM | #7 | |
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Amazing info thanks mate!! The wing angle is one less worry. Got all the baseline I need to hit the ground running!! Lutfy Sent from my iPhone using Tapatalk
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08-31-2018, 10:04 AM | #8 | |
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Am losing a LOT of speeds in the straight and seriously contemplating going with the 2d GT250 wing. Lutfy
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08-31-2018, 10:20 AM | #9 | |
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08-31-2018, 11:40 AM | #10 | |
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Before moving on to a GT250 I want to exhaust all options first. Lutfy PS: @Icecreamtruk perhaps you can also get the shorter links overnighted to you and do the same prior to your tuesday run?
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08-31-2018, 12:13 PM | #11 | |
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The Following User Says Thank You to Icecreamtruk For This Useful Post: | Pat (08-31-2018) |
08-31-2018, 12:59 PM | #12 | |
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Lutfy
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09-01-2018, 12:42 PM | #13 |
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What do you expect to be different with the 250 wing?
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09-01-2018, 07:35 PM | #14 |
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[QUOTE=Sleepless;3128564]What do you expect to be different with the 250 wing?[/QUOTE
Less drag especially at higher speeds. More efficient wing. Ordered a set of shorter rods and will go down to as low as -4 degree to balance and also gain some mph at VIR. Lutfy
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