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Thread: MPX Plenum

  1. #1
    Join Date
    Nov 2003
    Location
    Ohio
    Posts
    50

    MPX Plenum

    Been working on this for about a month, but here are pictures of my updated MPX plenum. It will use an accufab mono blade Lightning throttle body. That throttle body will flow 1696 cfm@ 28" of mercury. If I can get 850cfm through the supercharger I will be very happy. To help get as much flow before the throttle body I am using a 90mm Lightning MAF with 4" tubing.
    Attached Images Attached Images    

  2. #2
    Join Date
    Mar 2006
    Location
    San Jose, Ca
    Posts
    1,806
    just need to smooth her out

  3. #3
    Join Date
    Jul 2003
    Location
    Ottawa, Ohio
    Posts
    5,232
    You would be better off just using stock Ford slot maf instead of that Lightning one to free up the airflow, they can be bought on ebay for $15 and no need to ever upgrade again.
    SCCoA Member#: 2515
    1990 SC AOD 2.1L Kenne Bell
    11.676 @ 121.35 mph
    506hp/478tq
    My Garage

  4. #4
    Join Date
    Dec 2009
    Location
    Toronto
    Posts
    1,963
    Nice job looking for more air.

    I love home built innovation.

    Paul

  5. #5
    Join Date
    Jul 2003
    Location
    Eastern (nee Western) PA
    Posts
    4,817
    It's pig ugly, but looks effective.

    Don't smooth it out, just clearcoat over the rust!
    God bless!!!

    1990 SC auto ... red outside, gray cloth inside ... ~180,000 miles (and climbing) ... driven daily!

  6. #6
    Join Date
    Dec 2002
    Location
    Wintersville, OH
    Posts
    3,863
    How much does that thing weigh!
    Makin some power!

  7. #7
    Join Date
    Apr 2002
    Location
    St. Charles, MO
    Posts
    20,142
    Quote Originally Posted by RadBird View Post
    Been working on this for about a month, but here are pictures of my updated MPX plenum. It will use an accufab mono blade Lightning throttle body. That throttle body will flow 1696 cfm@ 28" of mercury. If I can get 850cfm through the supercharger I will be very happy. To help get as much flow before the throttle body I am using a 90mm Lightning MAF with 4" tubing.
    Looks interesting. Are there any difficulties with adapting stuff like the TPS and IAC ? Are you eliminating the bypass valve or using another type ? Does this require a new throttle cable ? Will the cruise control still be functional ? What year is your car and what type of transmission do you have ?

    David
    91 SC AOD 4.2..2.3 Whipple........10.92 @ 126.70
    93 SC AOD 347 Turbo.................10.04 @ 138.99
    My Garage

  8. #8
    Join Date
    Jan 2003
    Location
    Woodbridge, VA
    Posts
    4,662
    Very interesting.
    ~Chris
    SCCoA Member #1826
    Riding jack stands.

  9. #9
    Join Date
    Dec 2009
    Location
    Toronto
    Posts
    1,963
    If your not to beat up to post...

    Looking forward to the final sandng/cutting and the addition of the of the fixtures.

    Paul

  10. #10
    Join Date
    Jan 2004
    Location
    Outside KC MO
    Posts
    5,790
    That is actually A+ work with a MIG. Do you have a template of the blower inlet portion?

    SWS

  11. #11
    Join Date
    Nov 2003
    Location
    Ohio
    Posts
    50

    MPX Plenum

    I am not done yet. Mating surfaces need to be machined flat, sanded smooth and then powder coated. The IAC will be mounted to the side, TPS will be on the throttle body, trans is a 4 r70w. Yes, I made a template for the MPX. I could also make these for all other versions of the m90, I would just change the inlet to the supercharger. The bypass is on the tube going to the manifold.

  12. #12
    Join Date
    Jul 2007
    Location
    live in quebec canada,GREAT WHITE NORTH
    Posts
    358

    wow!

    what a nice piece two thumbs up!
    89 black five speed T-bird
    2000 lifted 5speed subaru outback
    1982 mercury capry beater

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