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05-10-2016, 11:20 AM | #1 |
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1/4 Mile Launch Suggestions
Hey all, considering heading down to the track this weekend and I'm curious what everyone's "strategy" is for launching. I'm hearing a lot of people say second gear but I'm not sure if that's auto's only or with a clutch drop?
My car is a 2013 135 6-speed man with an axle back, JB4 on Map 5 (auto tune), and a charge pipe. Anyone have some numbers to share with a similar setup?
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"Tobias" 2013 135i ///M-Sport 6MT • Pure Stage 1 • XDI 35 HPFP • 404whp/440wtq Last edited by Matticus91; 05-10-2016 at 11:53 AM.. |
05-10-2016, 11:37 AM | #2 |
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2nd gear is for auto only
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05-10-2016, 12:03 PM | #4 |
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Well depends on how much you value your clutch and how sticky of tires you have out back.
Decent start? 3k and rapidly let out clutch (no drop). Better start? 4-5k and drop the clutch. Reduce revs if you get wheelspin or DSC intervention on your first run.
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05-10-2016, 12:16 PM | #5 |
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steptronic i believe
yep stock clutch isnt going to last long with those mods with hard drag racing |
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05-16-2016, 03:42 PM | #7 |
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Pretty sure it's about the shorter gearing. With the auto trans 1st gear spools out too fast, so you can get better traction as well as 60' times by starting in second and not needing to shift as soon.
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"Tobias" 2013 135i ///M-Sport 6MT • Pure Stage 1 • XDI 35 HPFP • 404whp/440wtq |
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