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Thread: Turbo or Supercharger for E34 M-5?

  1. #1
    Join Date
    May 2006
    Location
    AZ.
    Posts
    20

    Default Turbo or Supercharger for E34 M-5?

    Does anyone know who can boost me? I`ve seen them for 92 on..but no 91?
    I found some company out of Germany called,Lenz Motorenchnik that makes a sick setup,twin Superchargers!! But I cant get anyone.?.
    I`ve got 2 faster rides,but none as nice as my M-5.
    My Evo gets to much attention,( from the police)and the M-5 just gets respect!I`m hooked on BMW, just need a boost.
    1991 M5 Black on black
    Dinan Chip 175mph
    Dinan Cam Gears
    Cold Air Intake-custom
    Exaust-collector to 3" Pipe
    Lowered n Level
    Coilovers n Sways
    Centerforce Clutch
    Lightened Flywheel
    18"s

  2. #2
    Join Date
    Jun 2005
    Posts
    1,706

    Default

    Seems like a nice car. How about some pictures since this is your first post?
    Dinan chip, Bilstein sports w H&R, RD sways, RD strut brace, 750 bushings, Zimmermans/MetalMasters, O.E. M Pars, Eisenmann muffler

  3. #3
    Join Date
    Apr 2006
    Location
    Seattle, Washington USA
    Posts
    297

    Default

    Yes pictures would be great...
    Josh



    1990 BMW 525iA
    2000 Toyota Corolla CE
    2007 Toyota Echo

  4. #4
    Join Date
    Jul 2005
    Location
    New York
    Posts
    1,750

    Default

    from what i understand it's a reaaaal bitch to blow an s38 engine, as it's so highly tuned from the factory.


    Quote Originally Posted by Alexlind123
    You're my hero.

  5. #5
    Join Date
    May 2006
    Location
    AZ.
    Posts
    20

    Default

    Im taking pictures in the morning. I`ll post them soon. Shes black on black,black wheels,trim and lower body. Thank you gentlemen.
    1991 M5 Black on black
    Dinan Chip 175mph
    Dinan Cam Gears
    Cold Air Intake-custom
    Exaust-collector to 3" Pipe
    Lowered n Level
    Coilovers n Sways
    Centerforce Clutch
    Lightened Flywheel
    18"s

  6. #6
    Join Date
    Jun 2005
    Posts
    1,706

    Default

    Quote Originally Posted by 91m5
    Thank you gentlemen.
    And lady.
    Dinan chip, Bilstein sports w H&R, RD sways, RD strut brace, 750 bushings, Zimmermans/MetalMasters, O.E. M Pars, Eisenmann muffler

  7. #7
    Join Date
    May 2006
    Location
    AZ.
    Posts
    20

    Default

    Sorry,Ladies n Gentlemen. I should of read that Gayle
    Quote Originally Posted by Gayle
    And lady.
    .
    1991 M5 Black on black
    Dinan Chip 175mph
    Dinan Cam Gears
    Cold Air Intake-custom
    Exaust-collector to 3" Pipe
    Lowered n Level
    Coilovers n Sways
    Centerforce Clutch
    Lightened Flywheel
    18"s

  8. #8
    Join Date
    May 2006
    Location
    AZ.
    Posts
    20

    Default

    i just read about some guy who has a Eaton supercharger on his 91M5.
    He ran an 11.3@137mph!! on pump gas! Anybody know of this setup??
    1991 M5 Black on black
    Dinan Chip 175mph
    Dinan Cam Gears
    Cold Air Intake-custom
    Exaust-collector to 3" Pipe
    Lowered n Level
    Coilovers n Sways
    Centerforce Clutch
    Lightened Flywheel
    18"s

  9. #9
    Join Date
    Dec 2003
    Location
    PA
    Posts
    5,403

    Default

    Quote Originally Posted by 91m5
    i just read about some guy who has a Eaton supercharger on his 91M5.
    He ran an 11.3@137mph!! on pump gas! Anybody know of this setup??
    Don't bother - its such a pain in the ass to put a roots blower on a car not designed for it and its kind of a cheap blower to go with - yeah the parts are cheap, but the rotors wear out relatively soon and lets be honest, are you going to be happy with it?

    My background info:

    I used to have an Alpina supercharger on my E34 525, I repullied it and had it around 9 psi. It was fun, but after about 6 months I was bored - I now have a huge holset turbo on my car that I just got done driving - - and I really cannot recommend anything else! The problem with a CF blower is that all the boost up REAL REAL high. A roots blower may bring the air down a little lower, but if you're serious about torque the only REAL answer is a twinscrew which simply does not exist for the S38.

    If you are serious about turboing an E34 M5, and only about 0.004% ever are, you need to go to http://pure-pf.com/ the owners name is Andreas and he has put seveal S38s into the 8 - 9 second range. He is also the one responsible for VS Motor E36 S38B36 twin turbo that ran I believe a 7.7

    Either way, BMW designed the S38 as a high output L6, so it's high compression. You need to do internals or a thick headgasket on it to bring the compression down to at least 9.0:1. This sort of work is not cheap, especially since your parts will be from Sweden and this is an S38.

  10. #10
    Join Date
    May 2006
    Location
    AZ.
    Posts
    20

    Default

    Thank you Jon K.I knew someone in here was a Turbo guru. I`m getting the feeling it cant be done ,without spending a ton of cash.I think I`m leaving it N.A. Thankx Jon
    1991 M5 Black on black
    Dinan Chip 175mph
    Dinan Cam Gears
    Cold Air Intake-custom
    Exaust-collector to 3" Pipe
    Lowered n Level
    Coilovers n Sways
    Centerforce Clutch
    Lightened Flywheel
    18"s

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