[W126 Coupe] Engine replacement for 1983 500 SEC

[Mike R.]

Andy,
The steering has been beating up on me for a long while now but I just might get it resolved this week. The LS6 block just touched the MB steering gearbox and I used that as the logic to go to a R&P. Probably should have left the MB stuff in there but I'm too stubborn.

There are a couple of M119 SECs running around and they turned out great. The good news is that the SEC is still all MB and has around 325 HP. The bad news is that at least one of them (Axel's) still is running a bit too hot and I understand that it's pretty tough to get over 325 HP.

I have a custom wiring harness for the LS6 that is *supposed* to be plug-n-play. That will hook up all the engine sensors to the ECM, then around seven wires need to be hooked into the SEC. Simple (sure, he says tongue in cheek!!). 

Later,
Mike 

  ----- Original Message ----- 
  From: Andrew Sporner 
  To: Mercedes Coupes Mailing Lists 
  Sent: Tuesday, August 12, 2008 8:46 AM
  Subject: Re: [W126 Coupe] Engine replacement for 1983 500 SEC


  Hi Mike,

  Don't get the wrong idea.  I am agnostic about this
  kind of thing.  I know what I would do, but it doesn't
  mean that that is what somebody else should do.

  In any case I looked up the motor and it looked 
  very intriquing.  I saw somebody made an upgrade
  to M119 and wondered with a non-MB motor how
  much more complicated it would be.

  I had a similar idea myself, but have decided instead
  to sell my '82 anyways.  There are too many new
  problems cropping up.


  Cheers



  Andy



  On Tue, Aug 12, 2008 at 4:29 PM, Mike R. <mramay at att.biz> wrote:

    Andy,
    There was nothing wrong with the M117 motor or the 722.3 tranny that I removed to start this project. 

    This is being done because:
    1. I want to.
    2. I'm tired of everything (!) MB in the engine compartment leaking something
    3. This is by far the easiest way to get LOTS of HP
    4. This is the easiest way to upgrade from an engine/tranny designed in the '70s
    5. This will, while doubling the HP available, increase the fuel mileage of the car.
    6. This will provide a cruise control that doesn't die/surge (FYI, $85 for the CC unit).
    7. No more concern about the MB Classic Center tripling the price of parts for the expensive lumps in the car.
    8. Once this is done, if the LS6 doesn't provide sufficient power, then the LS7 (427ci) is the exact same size, a bolt-in replacement.
    9. I get to enter MB car shows AND Corvette car shows
    10. It pisses off the purists to put a better engine and tranny in there than MB provided (remember, this is lighter, double the HP, and gets better fuel mileage)
    11. It likely costs half of any MB upgrade
    12. I get rack & pinion power steering

    Later,
    Blasphemous Mike 
      ----- Original Message ----- 
      From: Andrew Sporner 
      To: Mercedes Coupes Mailing Lists 
      Sent: Tuesday, August 12, 2008 7:07 AM
      Subject: Re: [W126 Coupe] Engine replacement for 1983 500 SEC


      General question.

      Is this something people are doing because they can -- or is it a case that
      Mercedes parts are impossible to get a hold of to make the original motor 
      work?

      Greetings


      Andy

    The MB Coupes Website!
    W126 SEC Mailing List
    Postings remain property of MB Coupes, L.L.C.





------------------------------------------------------------------------------


  The MB Coupes Website!
  W126 SEC Mailing List
  Postings remain property of MB Coupes, L.L.C.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.pairlist.net/pipermail/mbcoupes/attachments/20080812/d2cb2c4f/attachment.html>