Results 1 to 22 of 22

Thread: M50, M52, M54 cam adjustment blocks

  1. #1
    Join Date
    Apr 2006
    Location
    Minnesota eh?
    Posts
    6,155
    My Cars
    86 325es

    M50, M52, M54 cam adjustment blocks

    If your on facebook you've probably seen these already but I've started producing these 3D printed cam timing blocks.

    works on all M42, M50, M52, S50, S52, M54 engines.

    can order from the link below

    https://www.alien-engineering.com/pr...-timing-blocks

    Works just like the factory timing blocks but have built in angle for 0-15 degrees of advance or retard. They snap onto the back of the cams and will not fall off. They are reversible, one side advances the cam, flip it around to retard the cam.


    The non vanos blocks are for installing a non vanos intake cam into the exhaust side of the head for a cheap upgrade over M50 cams.

    Pricing

    $20 each
    $100 for set of 0,2,4,6,8,10,12, and 14 degree blocks
    .


    If you want a different color or a custom angle please send me a message, that is no problem. Anything from 0-40 degrees will be easy to make.

















    Last edited by someguy2800; 11-08-2022 at 12:52 PM.


    86 325es, 2.8L m50, S476sxe, ProEFI 128 ecu, e85, solid rear axle, TH400 trans, 28x10.5w slicks, zip ties, popsicle sticks, tape
    best time 9.06 @ 151.8 mph, best 60 foot 1.30

  2. #2
    Join Date
    Aug 2007
    Location
    Vancouver, B.C., Canada
    Posts
    8,162
    My Cars
    '97 M3
    What about the indicator style.

  3. #3
    Join Date
    Apr 2006
    Location
    Minnesota eh?
    Posts
    6,155
    My Cars
    86 325es
    Quote Originally Posted by chikinhed View Post
    What about the indicator style.
    I can make one of the dial adjustable ones if you want but it doesn't fit on an E36 due to the firewall.



    86 325es, 2.8L m50, S476sxe, ProEFI 128 ecu, e85, solid rear axle, TH400 trans, 28x10.5w slicks, zip ties, popsicle sticks, tape
    best time 9.06 @ 151.8 mph, best 60 foot 1.30

  4. #4
    Join Date
    Feb 2012
    Location
    Birmingham, Alabama, USA
    Posts
    8,369
    My Cars
    1995 BMW M3
    These are so cool.
    Question though, and forgive my ignorance.. What is the best way of determining what is best for a given set up? Is there an easier way than doing this on the dyno and making pulls after each adjustment?

  5. #5
    Join Date
    Apr 2006
    Location
    Minnesota eh?
    Posts
    6,155
    My Cars
    86 325es
    Quote Originally Posted by rajicase View Post
    These are so cool.
    Question though, and forgive my ignorance.. What is the best way of determining what is best for a given set up? Is there an easier way than doing this on the dyno and making pulls after each adjustment?
    An educated guess could be made depending on the setup and what cams are being run. Chickenhed shared some data from his experiments and I've done some playing with mine as well. If someone has a stanalone you can also see the changes reflected in the VE table.


    86 325es, 2.8L m50, S476sxe, ProEFI 128 ecu, e85, solid rear axle, TH400 trans, 28x10.5w slicks, zip ties, popsicle sticks, tape
    best time 9.06 @ 151.8 mph, best 60 foot 1.30

  6. #6
    Join Date
    Aug 2007
    Location
    Vancouver, B.C., Canada
    Posts
    8,162
    My Cars
    '97 M3
    These would be great for my retorquing of the 11 mm head studs in my near future.

  7. #7
    Join Date
    Jul 2005
    Location
    PEI, Canada
    Posts
    2,817
    My Cars
    2001 330i
    Very cool Perry.

    I'm going to get a few from you to play with the M54.

    The way to VANOS is setup on the M54, these would be great to put the cam in a non-standard position.

    On the exhaust side, the cam is wildly biased for what I think is emissions....because it doesn't make any sense to me what the range of adjustment is in the WRONG direction. (Hurts VE when you move the exhaust cam with VANOS) On closer evaluation, I found that my exhaust lobe position is nearly 20 degrees off from what works on other boost FI BMWs....

  8. #8
    Join Date
    Apr 2006
    Location
    Minnesota eh?
    Posts
    6,155
    My Cars
    86 325es
    Quote Originally Posted by PEI330Ci View Post
    Very cool Perry.

    I'm going to get a few from you to play with the M54.

    The way to VANOS is setup on the M54, these would be great to put the cam in a non-standard position.

    On the exhaust side, the cam is wildly biased for what I think is emissions....because it doesn't make any sense to me what the range of adjustment is in the WRONG direction. (Hurts VE when you move the exhaust cam with VANOS) On closer evaluation, I found that my exhaust lobe position is nearly 20 degrees off from what works on other boost FI BMWs....

    Just curious, what cam angles did you find to work well on your car at different RPM's?

    Just let me know what you need, if you need a different angle than what I have made I can draw it up.


    86 325es, 2.8L m50, S476sxe, ProEFI 128 ecu, e85, solid rear axle, TH400 trans, 28x10.5w slicks, zip ties, popsicle sticks, tape
    best time 9.06 @ 151.8 mph, best 60 foot 1.30

  9. #9
    Join Date
    Feb 2011
    Location
    Virginia
    Posts
    3,043
    My Cars
    97' m52 turbo
    @vollosso

    What set should I get for my car?

    m52/ s52 Cams

  10. #10
    Join Date
    Mar 2012
    Location
    Renton, Wa
    Posts
    5,429
    My Cars
    98 m3
    Quote Originally Posted by 328iFun View Post
    @vollosso

    What set should I get for my car?

    m52/ s52 Cams
    It’s going to be very related to back pressure.

    I would get a set of lower angles and play with the exhaust cam and look for spool changes.


    Sent from my iPhone using Tapatalk
    1989 535i - sold
    1999 M3 Tiag/Dove - sold
    1998 M3 Turbo Arctic/black - current
    2004 Built motor TiAg/Black - Sold
    2008 E61 19T Turbo-Wagon - current
    2011 E82 135i - S85 Swap - current
    1998 M3 Cosmos S54 swapped Sedan - current

    1998 Turbo: PTE6870 | 1.15 ar | Hp Cover, Custom Divided T4 bottom-mount, 3.5" SS exhaust, Dual Turbosmart Compgates, Turbosmart Raceport BOV, 3.5" Treadstone Intercooler, 3.5" Vibrant resonator and muffler, Arp 2k Headstuds | Arp 2k Main studs | 87mm Je pistons | Eagle rods | 9.2:1 static compression, Ces 87mm cutring, Custom solid rear subframe bushings, Akg 85d diff bushings, 4 clutch 3.15 diff, , Poly engine mounts, UUC trans mounts W/ enforcers, 22RPD OBD2 Stock ECU id1700 E85 tune, 22RPD Big power Transmission swap w/ GS6-53

  11. #11
    Join Date
    Jul 2005
    Location
    PEI, Canada
    Posts
    2,817
    My Cars
    2001 330i
    Quote Originally Posted by someguy2800 View Post
    Just curious, what cam angles did you find to work well on your car at different RPM's?

    Just let me know what you need, if you need a different angle than what I have made I can draw it up.
    I figured I would explain why the wacky cam timing works for anyone new to moving the timing around.

    The aim when trying to increase boost is that each cylinder filling event has more volume (mass) than the previous event. To do this, you want to increase valve overlap at TDC to maximize the amount of fresh charge volume vs burned charge volume in the cylinder. The key to this is that the inlet port pressure is higher than the exhaust port pressure. As the mass flow through the exhaust increases, the back pressure increases, and eventually you end up with a 1 to 1 ratio with the inlet charge. The engine wants completely different valve timing for the inlet biased pressure, vs equal pressure, vs exhaust biased pressure.

    When the engine has equal pressure seen at TDC in the exhaust and inlet ports, it behaves like a naturally aspirated engine.

    When the inlet pressure is higher than exhaust pressure at TDC, it behaves like a bigger engine.

    When the exhaust pressure is higher than inlet pressure at TDC, it behaves like a smaller engine.


    By moving the exhaust timing around, you are trying to "hide" the high pressure from when the inlet valve is open. (In addition to aiding in cylinder blow-down) If you have a "big" cam though, there will be a point where you loose engine power because the exhaust is open too soon, AND the inlet is seeing some exhaust pressure at TDC. This is where you would move the inlet valve timing away from being open at the same time as the exhaust valve, which hurts top end power (The inlet likes to be open earlier at higher RPM) but helps with midrange spool and torque production.

    And here are some variations on this strategy:






    Due to a mistake in how I interpreted my exhaust VANOS position, you can see with the Turbo M54 exhaust centreline that I was mirroring the shape of the S54 turbo centreline, but the cam off by a LOT. This is where I'm looking to move my exhaust cam splines by 30 degrees to get it lined up with the Turbo S54 exhaust centreline. BTW....I ran that exhaust timing curve (Blue) for a very short time before I locked the exhaust position at -103 Degrees. (The VE took a dive on data logs)

  12. #12
    Join Date
    Apr 2006
    Location
    Minnesota eh?
    Posts
    6,155
    My Cars
    86 325es
    Your 2nd picture doesn't work

  13. #13
    Join Date
    Feb 2018
    Location
    Bulgaria
    Posts
    1
    My Cars
    e92 335i; e36 m50b28
    HI, i want to place an order. How to do it.

  14. #14
    Join Date
    Apr 2006
    Location
    Minnesota eh?
    Posts
    6,155
    My Cars
    86 325es
    Quote Originally Posted by gixercho View Post
    HI, i want to place an order. How to do it.
    I sent you a private message.
    Last edited by someguy2800; 02-07-2019 at 01:21 PM.


    86 325es, 2.8L m50, S476sxe, ProEFI 128 ecu, e85, solid rear axle, TH400 trans, 28x10.5w slicks, zip ties, popsicle sticks, tape
    best time 9.06 @ 151.8 mph, best 60 foot 1.30

  15. #15
    Join Date
    Mar 2016
    Location
    Australia
    Posts
    160
    My Cars
    e30 318i, 135i
    id like to order a set, international order please.

  16. #16
    Join Date
    Jul 2018
    Location
    Norway
    Posts
    1
    My Cars
    E39 520i 1997 manual
    Do you still sell these? I would really like to buy a set. 0deg NV and 0deg normal. And also the piece you made to hold the camshaft in the 3-jaw chuck.
    Is it possible?

  17. #17
    Join Date
    Apr 2006
    Location
    Minnesota eh?
    Posts
    6,155
    My Cars
    86 325es
    PM sent


    86 325es, 2.8L m50, S476sxe, ProEFI 128 ecu, e85, solid rear axle, TH400 trans, 28x10.5w slicks, zip ties, popsicle sticks, tape
    best time 9.06 @ 151.8 mph, best 60 foot 1.30

  18. #18
    Join Date
    Sep 2019
    Location
    Turkey
    Posts
    19
    My Cars
    E34 520i
    Hello. I sent you an e-mail. I want to buy these adjustment apparatus. ContactHello. I sent you an e-mail. I want to buy these adjustment apparatus.

  19. #19
    Join Date
    Apr 2006
    Location
    Minnesota eh?
    Posts
    6,155
    My Cars
    86 325es
    Thanks, email returned.

    - - - Updated - - -

    For anyone else, you can order them on my website here

    https://www.alien-engineering.com/pr...-timing-blocks


    86 325es, 2.8L m50, S476sxe, ProEFI 128 ecu, e85, solid rear axle, TH400 trans, 28x10.5w slicks, zip ties, popsicle sticks, tape
    best time 9.06 @ 151.8 mph, best 60 foot 1.30

  20. #20
    Join Date
    Sep 2019
    Location
    Turkey
    Posts
    19
    My Cars
    E34 520i
    I think questions are not taken into account. I ask again. I have a combination of m54b30 camshaft and m50nv camshaft. What is your appropriate adjustment apparatus. There are many options but which one you need to take

  21. #21
    Join Date
    Mar 2019
    Location
    Silver Spring, Maryland
    Posts
    176
    My Cars
    1990 325i
    So if u look on his site he has recommendations for multiple displacement/ motor configurations…

  22. #22
    Join Date
    Sep 2019
    Location
    Turkey
    Posts
    19
    My Cars
    E34 520i
    I looked at the web page. There is something wrong with the advertising picture. Inlet camshaft has the letter A. So installed the Exhaust camshaft. Why not plug in the inlet camshaft. The inlet camshaft has the letter E. I want to buy it, but I doubt the faulty application

Similar Threads

  1. K&N Panel Filter for M50, M52, M54 engines.
    By TomPeters in forum Engines, Performance Parts & Software
    Replies: 13
    Last Post: 01-10-2011, 02:19 PM
  2. Differenece bet. M50, M52, M54 Shape? How to know?
    By The Buccaneer in forum General BMW and Automotive Discussion sponsored by Intercity Lines
    Replies: 0
    Last Post: 05-18-2010, 01:09 PM
  3. FS: ARP Head Stud Kit BNIB E36 M3 S50 S52 M50 M52 M54
    By WK446 in forum Race Cars & Track Parts
    Replies: 4
    Last Post: 03-14-2007, 08:19 PM
  4. Arp Head Studs Bmw 3 Series M3 E36 M50 M52 M54 158.00
    By Turbo ///M50 in forum Forced Induction
    Replies: 2
    Last Post: 02-15-2007, 09:30 PM
  5. Replies: 1
    Last Post: 11-12-2006, 07:41 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •