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Thread: Big Power Manual Transmission (S6-53) Swap

  1. #51
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    1997 BMW 328i
    Man those bolt holes look remarkably close to the OE ones

    Sent from my SM-N950U using Tapatalk

  2. #52
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    1993 325is
    That's purty!

  3. #53
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    Quote Originally Posted by Kame36sedan View Post
    Man those bolt holes look remarkably close to the OE ones

    Sent from my SM-N950U using Tapatalk
    Close, but it's not going to happen without some kind of adapter ring. The top bolts by the head are like 10mm further apart and the others are shifted a few millimeters here and there.

    I tried bolting up an N54 6-speed transmission to an S52 and it wasn't going to happen. I think 2 bolts was all that would line up and I just wouldn't feel comfortable with that.

    I also bought a ZHP 6-speed and it bolts right up but they are not as plentiful and are rated lower than the N54 transmissions (but still stronger than the E46 M3 6-speeds).

  4. #54
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    08 E90M3; 99 E36M3 Turbo
    GS6-37 from E46 330i (or maybe Z4 3.0) is rated at 370NM, less than Getrag 420G from E46 M3 that is rated at 420NM.

  5. #55
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    Minnesota eh?
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    86 325es
    M52's are rated at 190 hp.


    86 325es, 2.8L NV m50, S366, Megasquirt 2, e85, solid rear axle, 4 link, spool, T56 Magnum trans, 28x10.5w slicks, zip ties
    Best = 9.43 @ 149.15 mph, 1.30 60 foot 28 psi boost

  6. #56
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    Quote Originally Posted by pbonsalb View Post
    GS6-37 from E46 330i (or maybe Z4 3.0) is rated at 370NM, less than Getrag 420G from E46 M3 that is rated at 420NM.
    Regardless of what the rating is, Jim Blanton and others have said it's a stronger and more reliable transmission. Endurance race teams have pulled the 420G from their cars and installed the ZF GS6-37 because it's that much better of a transmission. ZF licensed Getrag to make the GS6-37 trans as well. The only downside is clutch availability and rarity compared to other 6-speeds.

    N54 trans whoops them all, so that's where I'll be headed one of these days.

  7. #57
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    Likewise, go find a 420g for under 1000$. They are insane right now and for good reason... it only came in the M3 pretty much. Now as long as that nice shiney chunk of billet machined on the local VMC does not cost us 1k$ or more like every other BMW taxxed part

  8. #58
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    Quote Originally Posted by Mklock View Post
    Likewise, go find a 420g for under 1000$. They are insane right now and for good reason... it only came in the M3 pretty much. Now as long as that nice shiney chunk of billet machined on the local VMC does not cost us 1k$ or more like every other BMW taxxed part
    This whole swap kit will cost less than a 420g and a 1000tq clutch. I really should post some pricing.. just want to make sure everything is 100% before I get anyone too excited.


    Sent from my iPhone using Tapatalk
    1989 535i - sold
    1999 Tiag/Dove M3 - sold
    1998 Turbo Arctic/black - current
    2004 TiAg/Black - Current

    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

  9. #59
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    To late, I'm over here wagging my tail...

  10. #60
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    easton pa
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    e36 m3, turbo e36
    So where do I send my money!


    -sold...replaced by turbo e36

  11. #61
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    Whats the length difference between the 420g and the ZF GS6-37?

    Looking to see if I can still use my DSS 420g DS

    98 Fern Green M3/2 - Precision 6870/AR Designs Twin Scroll/RK/E85
    2017 Toyota Tundra Crewmaxx - Family Whip
    2011 Pierce 75' Quint - Fire Apparatus West Islip FD

  12. #62
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    08 E90M3; 99 E36M3 Turbo
    Length difference with adapter ring.

  13. #63
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    Quote Originally Posted by beeasy View Post
    So where do I send my money!
    Soon so soon.


    Quote Originally Posted by NY98M3 View Post
    Whats the length difference between the 420g and the ZF GS6-37?

    Looking to see if I can still use my DSS 420g DS
    I think itís going to be really close, without measuring the 420 personally I cannot tell you exactly. Iíll get under the e46 later and take a measurement.




    Sent from my iPhone using Tapatalk
    1989 535i - sold
    1999 Tiag/Dove M3 - sold
    1998 Turbo Arctic/black - current
    2004 TiAg/Black - Current

    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

  14. #64
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    im sure ill be needing one!
    1998 CES Turbo M3 Nick G tuned 692.87 Whp 625.68 Wtq @20.78 Psi. 93 octane & 50/50 water Meth

  15. #65
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    This is going to sound lame for the FI section, but what about someone that wants a 6sp for stock power levels, with room to maybe going turbo in the future? Since you mentioned the ZHP trans isn't that easy to find, could different clutches be applied?

  16. #66
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    Quote Originally Posted by LSxDreamer View Post
    This is going to sound lame for the FI section, but what about someone that wants a 6sp for stock power levels, with room to maybe going turbo in the future? Since you mentioned the ZHP trans isn't that easy to find, could different clutches be applied?
    Yeah I can do an organic clutch pack for you.


    Sent from my iPhone using Tapatalk
    1989 535i - sold
    1999 Tiag/Dove M3 - sold
    1998 Turbo Arctic/black - current
    2004 TiAg/Black - Current

    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

  17. #67
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    Just out of curiousity you mentioned the autos in the E90 dont totally suck. I have never considered an auto before so I dont follow them normally. Are all the autos in the platform not that bad or is it only true of the ones that are the “sport” or behind the 335s. Not sure if there is any difference between them even.

    I figure others may be interested too so thought I would ask!
    -Nick
    91 E30 M42 on VEMS

    Turbo Camshaft Thread

  18. #68
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    Quote Originally Posted by wazzu70 View Post
    Just out of curiousity you mentioned the autos in the E90 dont totally suck. I have never considered an auto before so I dont follow them normally. Are all the autos in the platform not that bad or is it only true of the ones that are the ďsportĒ or behind the 335s. Not sure if there is any difference between them even.

    I figure others may be interested too so thought I would ask!
    Yeah the 6hp is pretty stout. Thereís a few capacities 19/21/26.

    I have a buddy thatís a transmission calibration engineer and we have discussed how to implement this transmission from an electronics perspective.

    Itís the next stage of this project. A cheap automatic trans swap that will cover 700whp. I think I have EMC convinced to buy one and be my guinea pig.

    On some other fun news the aluminum guibo from the F series and other 2011+ cars will work with this swap.



    Sent from my iPhone using Tapatalk
    1989 535i - sold
    1999 Tiag/Dove M3 - sold
    1998 Turbo Arctic/black - current
    2004 TiAg/Black - Current

    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

  19. #69
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    How does the aluminum guibo deal with flex?

  20. #70
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    Quote Originally Posted by chikinhed View Post
    How does the aluminum guibo deal with flex?
    IMG_0107.JPG

    Yeah these guys have rubber inserts, oem part.


    Sent from my iPhone using Tapatalk
    1989 535i - sold
    1999 Tiag/Dove M3 - sold
    1998 Turbo Arctic/black - current
    2004 TiAg/Black - Current

    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

  21. #71
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    Itís probably lighter as well. Is it the same bolt pattern as ours?

  22. #72
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    Quote Originally Posted by chikinhed View Post
    Itís probably lighter as well. Is it the same bolt pattern as ours?
    Its 105mm, our factory is 96mm. It will work with this 6s swap!

    Other fun news is the 335i driveshaft is the same diameter on the thick part.


    Sent from my iPhone using Tapatalk
    1989 535i - sold
    1999 Tiag/Dove M3 - sold
    1998 Turbo Arctic/black - current
    2004 TiAg/Black - Current

    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

  23. #73
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    Sorry if I missed it, but is there a certain DSS driveshaft that'll work perfectly with this?

  24. #74
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    08 E90M3; 99 E36M3 Turbo
    I have had 3 DSS. Hated them all. But never broken one.

  25. #75
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    Quote Originally Posted by pbonsalb View Post
    I have had 3 DSS. Hated them all. But never broken one.
    Vibrations?


    Sent from my iPhone using Tapatalk

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