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2010 2011 BMW 5 Series Forum F10 2011 BMW 550I X M-Sport JB4 Stage 2 Only 12.25 ¼ Mile Looking to Break into 11’s |
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07-02-2015, 05:54 PM | #1 |
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2011 BMW 550I X M-Sport JB4 Stage 2 Only 12.25 ¼ Mile Looking to Break into 11’s
Hello everyone, I have a 2011 BMW 550I X M-Sport JB4 Stage 2 Only. I recently ran a 12.25 ¼ Mile at 113mph in aggressive mode at my local drag strip. Im looking to break into the high 11’s for around $1000 or so. I was looking into intakes but Im most certainly am not paying $2700 for a Dinan. Did anyone see any improvements in the 1/4mile with the air scoops and K&N filters offered by BadBlack550xi and how much did it cost? I was also looking at the intake he offers does anyone have any time slips with this yet? Any other suggestions would be great. Thanks
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07-03-2015, 03:33 PM | #3 | |
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I would suggest to get catless downpipes this way you can crank up more boost and get close to 11.9... See where you end up and if you need the filters ill be happy to make them for you. Arch has the 2014 N63 Tu his record is 11.5 @ 119 Mods: Filters, Scoops, Catless Down Pipes, Custom Exhaust piping with mastechaft mufflers. Me 2013 N63 My record is 11.8 @ 119 Filters, Scoops, Catted Down pipes, Custom exhaust with M5 mufflers.
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07-05-2015, 09:26 AM | #6 | |
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07-05-2015, 09:41 PM | #7 |
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It's all about the filters and scoops brah.
Wait.. Did you even remove your charcoal filters? What has you running? Race gas on the 2011-2013 is like crack! Castles downpipes with Scoops and filters and a bit of race gas I have no doubt you are in 11s. Post your time slip!!! |
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07-07-2015, 11:29 AM | #8 |
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If you are looking to improve your 1/4 mile, start with catless downpipes. Evolution Racewerks is the most popular option .
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https://x-ph.com/sale/ Phone number 702-494-9435 |
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07-07-2015, 04:28 PM | #10 |
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07-08-2015, 01:38 AM | #11 |
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The only mods on my 2011 550IX M Sport AT are JB4 stage 2 with charcoal filters removed. It was a 68 degree night at Empire Drag Strip in Leicester NY. The 12.25 ¼ mile pass was made with JB4 set to aggressive mode default wastegate position 1 with Boost Failsafe PSI set to 4 other setting left at default stage 2. I had about half a tank of 93 octane and 2 bottles of NOS Octane booster with MMT. I turned the DTC off and launched as hard as the car could at 3k rpm brake boosted launch obtaining a 1.67 60ft. I let the car shift itself and was wondering if shifting manually at a different rpm could be faster? I had a few extra items in the car like cooler, girlfriends overnight bag 20lbs at least, some extra oil, 1 gallon of water, my loaded heavy laptop bag and a few other items. I believe I could take 100lbs out of the car including running around ¼ tank of fuel instead of ½ tank. I had the CCP service already done at the time of the pass. I just had the high pressure fuel pump replaced under recent service bulletin and hope that this will help my time. I’ll be going to the drag strip this Friday and hope to run a new best time. I’ll be reducing the weight by 100lbs, new high pressure fuel pump, ¼ tank of 100 octane unleaded race fuel, and trying slightly different JB4 settings. I’m going to place an order for the scoops and filters with BadBlack550XI but unfortunately they will not arrive in time for Friday’s event. If anyone has any pointers, suggestions, JB4 settings, or any other info that will help me go a little faster this weekend at the track please let me know. Thanks for all the input guys.
Im the Right Lane # 68. I was racing a GT500 that gave up after a bad launch. |
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07-08-2015, 11:38 AM | #12 |
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I've noticed the 550i tends to die close to the redline, I think if you shift earlier it will make a difference.
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07-08-2015, 03:57 PM | #13 |
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correct i place a sticky note blocking my RPM gauge after 5800 and always shift there car got much faster in 1/4
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