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  1. #1
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    Cobb AP - Recommended map for 535 with DCI?

    Hey Everyone! I've been having a really difficult time getting information on modding the 535 as the overwhleming majority of posts are pertaining to 135 & 335's. Anyway, I got by DMS DCI's in last night and installed them and my Cobb AP is on its way to the house as I speak.

    So I'm curious if any of you would be willing to share your experiences (535 preferred but I'd love to hear everyone's) with the different maps loaded with DCI's.

    Thanks!

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    Most everyone here with a 5er is running the JB4. You need to let us know about the Cobb Click here to enlarge
    JB4, R1 slotted and drilled, AR meth elbow, BMS/CM FSB meth, Scuba-Steveo intake scoop

    Sell me your 535i/xi AR kitless downpipes!

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    I will do that. I'm trying to locate a good dyno in my area where I can do 3 runs. One stock, one stock & Cobb the one with DCI & Cobb. I will be happy to post those #'s up once I can actually get out to one. I'm pretty new to FI cars so i've been reading like crazy on all the different aspects. Because the car is CPO, the cobb makes more sense (to me) then the JB4 and meth is definitely out for now.

    Will follow up once I can get some #'s for everyone.

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    Keep us posted!
    Burger Motorsports
    Home of the Worlds fastest N20s, N54s, N55s, S55s, N63s, and S63s!

    It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways. Please click here for more information on legal requirements related to use of BMS parts.

  5. #5
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    just run the official maps of stage 1 for the right octane.
    07 335i AT - MOTIV 750 - MHD BMS E85 - BMS PI - JB4G5 - Okada Coils - NGK 5992 Plugs - Helix IC - Stett CP - Custom midpipes with 100 HJS Cats - Bastuck Quad - PSS10 - QUAIFE LSD - BMS OCC - Forge DVs - AR OC - ALCON BBK - M3 Chassi - Dinan CP - Velocity M rear Toe arms - Advan RZ-DF - LUX H8 - Level 10 AT upgrade
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    1 out of 1 members liked this post. Yes Reputation No
    Take the dci off and run a dropin filter on the stock box. DCIs hurt performance on stg1 93 octane. Been demonstrated at the track. Try to make a Mr. 5 style intake on the 5er. That'd be a first.

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    Click here to enlarge Originally Posted by boom Click here to enlarge
    Take the dci off and run a dropin filter on the stock box. DCIs hurt performance on stg1 93 octane. Been demonstrated at the track. Try to make a Mr. 5 style intake on the 5er. That'd be a first.
    Why do DCI's hurt performance on only 93 octane Stage I? Not moving enough air for a benefit?

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    On stg1 93 the boost is not high enough for the stock intake to become a restriction. At higher boost levels the dci are needed. The hot air that the dci pull reduces they're effectiveness compared to the stock box on stg1. At higher boost the reduced flow of the stock box outweighs the reduced air density of the dci.

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    Hey boom. Ya, there are two totally different schools of thought on the DCI's. Of course, they are very, very highly biased depending on the forum and person you are talking to. Personally I think the best route to go would be a Mr. 5 intake but until I can find out if that would void CPO, I probably won't go that route. I agree that the DCI will suck in hot air and, performance aside, that simply jsu cannot be good for the longevity of the turbos. I'm going to run the DCI's for a couple more days then switch back to stock and see the difference.

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    1 out of 1 members liked this post. Yes Reputation No
    Tested at the track. The stock box with stock filter outperformed newly cleaned dci.
    http://www.e90post.com/forums/showthread.php?t=491005

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    Click here to enlarge Originally Posted by boom Click here to enlarge
    Tested at the track. The stock box with stock filter outperformed newly cleaned dci.
    http://www.e90post.com/forums/showthread.php?t=491005
    Boom - that is an awesome writeup! Seriously! Wish I would of found that before doing my own testing, would of saved me some time! Thank you so much for posting that in here!

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    Thanks. Glad you liked it. The dci result surprised me.

  13. #13
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    Click here to enlarge Originally Posted by boom Click here to enlarge
    On stg1 93 the boost is not high enough for the stock intake to become a restriction. At higher boost levels the dci are needed. The hot air that the dci pull reduces they're effectiveness compared to the stock box on stg1. At higher boost the reduced flow of the stock box outweighs the reduced air density of the dci.
    That makes a bit of sense but has this been documented? I have seen DCI dyno gains on 91 octane with low boost maps.

  14. #14
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    Click here to enlarge Originally Posted by boom Click here to enlarge
    Tested at the track. The stock box with stock filter outperformed newly cleaned dci.
    http://www.e90post.com/forums/showthread.php?t=491005
    Disregard my previous post.

  15. #15
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    Click here to enlarge Originally Posted by boom Click here to enlarge
    Tested at the track. The stock box with stock filter outperformed newly cleaned dci.
    http://www.e90post.com/forums/showthread.php?t=491005
    Why didn't you post that here? Amazing work and well documented, seriously, I would have loved to make that an article.

  16. #16
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    1 out of 1 members liked this post. Yes Reputation No
    Sorry. Thought I did. Fixed. Thanks.

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