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Thread: Cylinder head flow data S54 vs S52 vs M52

  1. #1
    Join Date
    Aug 2013
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    Jupiter
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    m3

    Cylinder head flow data S54 vs S52 vs M52

    Any flow data of S54 head, S52 head, M52 head?
    Stock vs. Ported

  2. #2
    Join Date
    Oct 2009
    Location
    Nanaimo, B.C., Canada
    Posts
    1,511
    My Cars
    EuroS50B30,e83,Frontier
    I believe the m52 head and s52 head share the same casting, should be the same flow
    "There are bold drivers and there are old drivers, but there are no bold, old drivers."

  3. #3
    Join Date
    Jan 2007
    Location
    A house
    Posts
    2,251
    My Cars
    '86 325e, '14 VW EPA
    M5x head (S52 specifically but same thing)

    Stock:


    Ported:

  4. #4
    Join Date
    Mar 2012
    Location
    Renton, Wa
    Posts
    5,429
    My Cars
    98 m3
    ^ nice numbers? Whos port?
    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

  5. #5
    Join Date
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    A house
    Posts
    2,251
    My Cars
    '86 325e, '14 VW EPA
    Quote Originally Posted by vollosso View Post
    ^ nice numbers? Whos port?
    No one e-famous, a local engine builder.

  6. #6
    Join Date
    Mar 2012
    Location
    Renton, Wa
    Posts
    5,429
    My Cars
    98 m3
    Port pics?
    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

  7. #7
    Join Date
    Jan 2007
    Location
    A house
    Posts
    2,251
    My Cars
    '86 325e, '14 VW EPA
    Quote Originally Posted by vollosso View Post
    Port pics?
    The only one I have handy:


  8. #8
    Join Date
    Oct 2004
    Location
    Australia
    Posts
    2,663
    My Cars
    1994 M3
    S50B32 euro head
    Intake flow:
    Lift - stock - stk valve ported - .65mm over valve (with TB) - without TB
    .1 - 89.6 - 92.0 - 111.5 - 113.5
    .2 - 173.6 - 175.2 - 189 - 193
    .3 - 228.6 - 240.0 - 245 - 254
    .4 - 253.8 - 264.6 - 281 - 287
    .5 - 262.2 - 280.5 - 293 - 303
    .55 - 267 - 285 - 299 - 308
    .6 - 268.8 - 287 - 303 - 311
    .65 - 270.0 - 289 - 306 - 315
    cheers, Alan



    1/4 mile-12.92 @ 108.64mph-NA 3.0L m3 daily driver

  9. #9
    Join Date
    Jun 2011
    Location
    Scotland U.K.
    Posts
    7
    My Cars
    95 M3
    Hi Alan did you get your engine reworked what numbers did you end up with?

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