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Thread: My LQ4/T56 540i Sport conversion thread

  1. #101
    Join Date
    Jun 2011
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    Elizabethtown, PA
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    99 540i6
    I took it to a driveshaft shop and had it shortened, slip yoke installed and balanced + new center support bearing.

    I imagine there is a fixed transmission end out there that would work and it's probably the way I'll go if it ever needs replaced or if I have problems.

    You shouldn't have a problem with the factory exhaust, it just lookd too restrictive for me to let it go as-is
    '99 BMW 540i6 L33 5.3, PRC Heads, E-force supercharged
    http://forums.bimmerforums.com/forum....php?t=1674320

  2. #102
    Join Date
    Apr 2009
    Location
    san diego
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    169
    My Cars
    2003 530i
    James, can you elaborate on the wiring side of things?

  3. #103
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    Jun 2011
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    Elizabethtown, PA
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    99 540i6
    Is there anything specific you aren't sure about that's not covered in #46?

    Let me know!
    '99 BMW 540i6 L33 5.3, PRC Heads, E-force supercharged
    http://forums.bimmerforums.com/forum....php?t=1674320

  4. #104
    Join Date
    Apr 2009
    Location
    san diego
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    169
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    2003 530i
    I'm not 100% clear on what wires you tapped into. I have bmw wds and have been trying to figure out what needs too happen. I'm just trying to get the basics on the wiring part of this swap before I dive fully into it. any chance you made a wiring schematic?

  5. #105
    Join Date
    Aug 2011
    Location
    Salt Lake City
    Posts
    265
    My Cars
    '95 M3, 97' E39 540i-LS3
    Some E36 swaps successfully used the E36 clutch MC. James, what led you away from the stock E39 clutch MC?

    Quote Originally Posted by James39 View Post
    Yeah, I'm not very happy about the fitment of the Professional Products cross-over line that came with the rails. That's how long it was out of the box. Unless I can find a replacement in the exact size, I'll probably let it go since I'm not equipped to make up a new one. . . Hmmm... maybe I'll call/email them in the morning and show them the pic of how ungodly long it is.

    Definitely on the fence about it, but thinking I'll let it go for now anyway. I doubt that it's much more of a restriction than the 90 deg. turns leading into and out of it???

    Got the clutch MC just about how I want it. Going to try to retain the helper spring, clutch start and cruise release switches. I at least plan on trying out the spring anyway.




  6. #106
    Join Date
    Jun 2011
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    Elizabethtown, PA
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    99 540i6
    Quote Originally Posted by zr6sbc View Post
    Some E36 swaps successfully used the E36 clutch MC. James, what led you away from the stock E39 clutch MC?
    The stock F-body bore size is the same size as the MC in the BMW. I've heard numerous complaints about the stock F-body cylinder not pushing enough fluid to shift quickly at high RPM.

    Besides that, this car had 232,000 miles on it, so at the very least, the hoses were due to be replaced, and I already had custom lines made up from my previous swapped vehicle.
    '99 BMW 540i6 L33 5.3, PRC Heads, E-force supercharged
    http://forums.bimmerforums.com/forum....php?t=1674320

  7. #107
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    Jun 2011
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    Elizabethtown, PA
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    99 540i6
    Quote Originally Posted by smkocheran View Post
    I'm not 100% clear on what wires you tapped into. I have bmw wds and have been trying to figure out what needs too happen. I'm just trying to get the basics on the wiring part of this swap before I dive fully into it. any chance you made a wiring schematic?
    The schematic is all in my head

    The DME triggers a relay that enables at least 4 othe relays. The DME relay needs a ground to trigger itself though, so I used a second separate relay to convert KEY+ to ground. There... now whatever is being powered by the DME relay is on-line.

    The fuel pump is controlled by the DME, but also requires a ground to trigger it. So, I used yet another relay (connected to the GM PCM's + fuel pump relay signal) to convert that to a ground.

    At this point, I have the DME relay (and all associated relays triggered by the DME) getting power, and the BMW fuel pump (and relay) are being controlled by the GM PCM.

    The 6-circuit mini fuse holder in the e-box is what I used to power everything else.

    2 are 12v+ constant, the other 5 are 12v+ key+ and start.

    The last wire you need is on the 18-pin connector in the e-box (separate from the DME plugs) that provides 12v when key is in the "start" position.

    It's really that simple
    '99 BMW 540i6 L33 5.3, PRC Heads, E-force supercharged
    http://forums.bimmerforums.com/forum....php?t=1674320

  8. #108
    Join Date
    Mar 2004
    Location
    USA
    Posts
    3,241
    My Cars
    96 328is 6.0L
    BTW do any of e39 guys have a BMW ETM for 2000?
    - 96 328is 6.0L. (LS1 to LS2 build thread: http://forums.bimmerforums.com/forum...ad.php?2098938)
    - 96 328is 5.7L. (LS1 build thread: http://forums.bimmerforums.com/forum....php?t=1289987)
    - 95 ///M3 6.0L. (LS2 build thread: http://forums.bimmerforums.com/forum....php?t=1619249)

    - 97 ///M3. (e46 Fender Flares/track car build thread: http://forums.bimmerforums.com/forum....php?t=1727098)
    - 96 328is (Dual Fuel Pump to Surge Tank thread: http://www.bimmerforums.com/forum/sh...ad.php?1964025)

  9. #109
    Join Date
    Apr 2009
    Location
    san diego
    Posts
    169
    My Cars
    2003 530i
    Quote Originally Posted by James39 View Post
    The schematic is all in my head

    The DME triggers a relay that enables at least 4 othe relays. The DME relay needs a ground to trigger itself though, so I used a second separate relay to convert KEY+ to ground. There... now whatever is being powered by the DME relay is on-line.

    The fuel pump is controlled by the DME, but also requires a ground to trigger it. So, I used yet another relay (connected to the GM PCM's + fuel pump relay signal) to convert that to a ground.

    At this point, I have the DME relay (and all associated relays triggered by the DME) getting power, and the BMW fuel pump (and relay) are being controlled by the GM PCM.

    The 6-circuit mini fuse holder in the e-box is what I used to power everything else.

    2 are 12v+ constant, the other 5 are 12v+ key+ and start.

    The last wire you need is on the 18-pin connector in the e-box (separate from the DME plugs) that provides 12v when key is in the "start" position.

    It's really that simple
    Thank you soo much for this!!!

  10. #110
    Join Date
    Apr 2007
    Location
    Centerville, Utah
    Posts
    2
    My Cars
    2003 525it, 1991 Audi 200 20v

    Always wanted to give this a try

    Thanks for sharing the project and the tips. Great job and I always figured this was a better engine than the BMW.

  11. #111
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    Jun 2011
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    Elizabethtown, PA
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    99 540i6
    Here's a long overdue drive-by video:

    [ame]http://www.youtube.com/watch?v=Zp-MMSvNDOM[/ame]
    '99 BMW 540i6 L33 5.3, PRC Heads, E-force supercharged
    http://forums.bimmerforums.com/forum....php?t=1674320

  12. #112
    Join Date
    May 2001
    Location
    Plymouth, MI 48170
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    My Cars
    1999LSxSwapped 557i & X5
    I like the tone of the exhaust it isn't obnoxious at all. We need in car video's!

    E53 LSX Swap Coming Soon!

  13. #113
    Join Date
    Jun 2011
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    Elizabethtown, PA
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    99 540i6
    It has some drone issues from like 1000-2500. Most people usually don't have such a wide spectrum of cabin noise like I do...

    Up next is an M5 steering box, complete suspension rebuild, brakes and AC $$$$
    Last edited by James39; 11-28-2011 at 08:52 AM. Reason: Automerged Doublepost
    '99 BMW 540i6 L33 5.3, PRC Heads, E-force supercharged
    http://forums.bimmerforums.com/forum....php?t=1674320

  14. #114
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    Jul 2011
    Location
    San Jose Ca
    Posts
    7
    My Cars
    2002 Chevy Camaro Z28
    Did you convert to a cable driven throttle body or are you using the drive by wire setup? If you are using the drive by wire did you just put in a GM pedal?

  15. #115
    Join Date
    Jun 2011
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    Elizabethtown, PA
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    99 540i6
    I'm using a modified corvette DBW pedal assembly that's boted to the floor.

    I retained the e39 gas pedal, works great.
    Attached Images Attached Images
    '99 BMW 540i6 L33 5.3, PRC Heads, E-force supercharged
    http://forums.bimmerforums.com/forum....php?t=1674320

  16. #116
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    2002 Chevy Camaro Z28
    ^^Thank you

  17. #117
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    May 2011
    Location
    Florence, Colorado
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    103
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    95-840,02-M3, 00-A8L

    block lengths

    Terrific Job, can't wait for a drive-by!!

    If you still have the 540, how much longer is the block compaired to the LS

  18. #118
    Join Date
    May 2001
    Location
    Plymouth, MI 48170
    Posts
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    My Cars
    1999LSxSwapped 557i & X5
    How many miles have you logged on the swap now?

    E53 LSX Swap Coming Soon!

  19. #119
    Join Date
    Jun 2011
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    Elizabethtown, PA
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    99 540i6
    5,000 miles. Needs suspension overhaul and brakes 237xxx on the odometer now, and I'm guessing a lot of the suspension is original...
    '99 BMW 540i6 L33 5.3, PRC Heads, E-force supercharged
    http://forums.bimmerforums.com/forum....php?t=1674320

  20. #120
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    Jun 2004
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    PA
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    Too many to list...
    Boy that was quick!

    Doug


    '97 M3/4

  21. #121
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    Jun 2011
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    Elizabethtown, PA
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    99 540i6
    Quote Originally Posted by fredw1324 View Post
    Terrific Job, can't wait for a drive-by!!

    If you still have the 540, how much longer is the block compaired to the LS
    The m62 is 24" from front of the head to the bellhousing mating surface
    '99 BMW 540i6 L33 5.3, PRC Heads, E-force supercharged
    http://forums.bimmerforums.com/forum....php?t=1674320

  22. #122
    Join Date
    Oct 2009
    Location
    Austin, Texas
    Posts
    368
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    00 540i, 10 335i, 20 M3P
    This is extremely impressive. How has the fuel economy changed with the LS engine?

  23. #123
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    Jun 2011
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    Elizabethtown, PA
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    99 540i6
    Quote Originally Posted by Ferruccio View Post
    This is extremely impressive. How has the fuel economy changed with the LS engine?

    I bought the car for the purpose of swapping in the LS. I only put about 10 miles on the car before pulling the M62.

    I average 15-17 it's 25+ on highway trips.
    '99 BMW 540i6 L33 5.3, PRC Heads, E-force supercharged
    http://forums.bimmerforums.com/forum....php?t=1674320

  24. #124
    Join Date
    Jun 2011
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    Elizabethtown, PA
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    99 540i6
    Finally got around to a big front suspension overhaul

    Brakes
    Koni Struts and associated mounts, etc.
    M5 steering box
    tie rods and drag link
    thrust arms
    control arms
    end links
    wheel bearings

    The thrust arm bushings were definitely hosed, ball joints on the thrust arms weren't too bad.

    Control arm ball joints were sloppy, couldn't really tell if the bushings are bad or not.

    Pretty sure I burned up the power steering pump when I fired it up. I had it full and didn't prime by hand, now it's squealing every now and then. It must have sucked all the fluid down into the box like a toilet flush when I fired it up the first time Damn, I hate pulling off the PS pulley, and this will be about the 5th time I've had to do it...

    Anyone have any tips on how to flush fluid out of a power steering box so I don't contaminate the pump? I see tiny aluminum flakes in the fluid

    Can't wait to get the rear done, the front end improvement is amazing. I really want AC to get finished, but I'm leaning towards doing the rear suspension first... I need tires now.

    Next up: Finish AC mounting, rear suspension, more exhaust mods, Installing my 3.62 M5 diff.

    Then wheels and tires, leaning towards m-par reps square setup with 275/35 R18's all around.

    Car dropped about 1/2" with the koni sport struts installed.

    Got new hoses on the power steering to fix the small leak I had from the initial rigged hoses I used.



    Last edited by James39; 04-29-2012 at 12:50 PM. Reason: Automerged Doublepost
    '99 BMW 540i6 L33 5.3, PRC Heads, E-force supercharged
    http://forums.bimmerforums.com/forum....php?t=1674320

  25. #125
    Join Date
    May 2010
    Location
    Salem, OR
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    2,503
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    2000 BMW 528
    You could bleed it dry by unhooking the hoses and turning lock to lock. Or stick the hose off the pump in a bucket of powersteering fluid and the other in an empty bucket. In theory it should suck the fresh fluid in and spit it out the other hose... I've never done it that way or even tried it.

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