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Thread: my intake manifold modifications

  1. #1
    Join Date
    Nov 2004
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    my intake manifold modifications

    I wasn't going to do anything with my car this year since i am planning on building a completely new engine. but i got a little bored and here is what I started. I have learned that the inlet plenum is a restiction for making big power. I decided to move the return plenum back a few inches to make more room for the inlet plenum. the inlet will be 4" aluminum tube with a holley 95 MM throttle body.
    Attached Images Attached Images    
    https://www.youtube.com/watch?v=7bNS...e_gdata_player 10.070 video
    Best ET to date 10.070
    Best MPH to date 130.51
    best 60' to date 1.312
    MPX blower/ NO NITROUS!

  2. #2
    Join Date
    Jan 2003
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    Woodbridge, VA
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    Cool! Man I need a TIG welder.
    ~Chris
    SCCoA Member #1826
    Bettie Riding jack stands
    SCARlet on drag duty now

  3. #3
    Join Date
    Dec 2010
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    Palm Beach, Florida
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    Quote Originally Posted by Kevin Leitem View Post
    I wasn't going to do anything with my car this year since i am planning on building a completely new engine. but i got a little bored and here is what I started. I have learned that the inlet plenum is a restiction for making big power. I decided to move the return plenum back a few inches to make more room for the inlet plenum. the inlet will be 4" aluminum tube with a holley 95 MM throttle body.
    is this going into a tbird? do you plan on cutting back the firewall to get this to fit?

  4. #4
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    Quote Originally Posted by Kevin Leitem View Post
    I wasn't going to do anything with my car this year since i am planning on building a completely new engine. but i got a little bored and here is what I started. I have learned that the inlet plenum is a restiction for making big power. I decided to move the return plenum back a few inches to make more room for the inlet plenum. the inlet will be 4" aluminum tube with a holley 95 MM throttle body.
    Kevin,

    Are you going to rework the MP casting or just build a new plenum from scratch ?

    David
    1991 SC AOD 4.2..2.3 Whipple..........10.910 @ 125.61
    2016 SRT Challenger Hellcat...............707HP/650TQ

    My Garage

  5. #5
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    Nov 2004
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    butler pa
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    Quote Originally Posted by BLOWN38 View Post
    Cool! Man I need a TIG welder.
    Chris, that was all done with a MIG with a spool gun
    Last edited by Kevin Leitem; 02-26-2011 at 01:01 PM.
    https://www.youtube.com/watch?v=7bNS...e_gdata_player 10.070 video
    Best ET to date 10.070
    Best MPH to date 130.51
    best 60' to date 1.312
    MPX blower/ NO NITROUS!

  6. #6
    Join Date
    Nov 2004
    Location
    butler pa
    Posts
    1,926
    Quote Originally Posted by fasterthanyou View Post
    is this going into a tbird? do you plan on cutting back the firewall to get this to fit?
    this will be going in my thunderbird and it will be tight to the stock firewall
    Last edited by Kevin Leitem; 02-26-2011 at 01:02 PM.
    https://www.youtube.com/watch?v=7bNS...e_gdata_player 10.070 video
    Best ET to date 10.070
    Best MPH to date 130.51
    best 60' to date 1.312
    MPX blower/ NO NITROUS!

  7. #7
    Join Date
    Nov 2004
    Location
    butler pa
    Posts
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    Quote Originally Posted by David Neibert View Post
    Kevin,

    Are you going to rework the MP casting or just build a new plenum from scratch ?

    David
    A new one from scratch. everything before the supercharger will be 4 inch alumunum tube
    https://www.youtube.com/watch?v=7bNS...e_gdata_player 10.070 video
    Best ET to date 10.070
    Best MPH to date 130.51
    best 60' to date 1.312
    MPX blower/ NO NITROUS!

  8. #8
    Great job Kevin, a BIG thumbs up to you my friend!!!!


    Charles

  9. #9
    Join Date
    Jul 2003
    Location
    Indy :)
    Posts
    146

    Cool

    Suh-WEET!
    Looks like you have addressed everything but the small blower and
    the "pancake" manifold restrictions. Also, great news that you can
    do quality welds with a spool gun! That is our setup, but waiting for
    Warmer weather to weld, no good indoor welding shop

  10. #10
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    Nov 2004
    Location
    butler pa
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    Quote Originally Posted by RGR View Post
    Suh-WEET!
    Looks like you have addressed everything but the small blower and
    the "pancake" manifold restrictions. Also, great news that you can
    do quality welds with a spool gun! That is our setup, but waiting for
    Warmer weather to weld, no good indoor welding shop
    Thanks, but I wouldn't call them quality. I would rather have a TIG. But it gets the job done. Its just been fun seeing how fast I can make this little M90 go! The next engine will be serious with either a F1r or F2 supercharger. Running on 100% methanol,high rise sheet metal intake, with BIG Stuff III running it.
    https://www.youtube.com/watch?v=7bNS...e_gdata_player 10.070 video
    Best ET to date 10.070
    Best MPH to date 130.51
    best 60' to date 1.312
    MPX blower/ NO NITROUS!

  11. #11
    Join Date
    Aug 2002
    Posts
    3,659
    Kevin have you ever considered stepping to a 4.5L SVO?

  12. #12
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    Nov 2004
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    Quote Originally Posted by Toms-SC View Post
    Kevin have you ever considered stepping to a 4.5L SVO?
    no, i have desire to do so. i enjoy making the parts to go fast. it would be too easy with the 4.5. if i stray away from the 3.8 it will be a 600 plus inch moter
    https://www.youtube.com/watch?v=7bNS...e_gdata_player 10.070 video
    Best ET to date 10.070
    Best MPH to date 130.51
    best 60' to date 1.312
    MPX blower/ NO NITROUS!

  13. #13
    Join Date
    Nov 2004
    Location
    butler pa
    Posts
    1,926
    some pics of todays progress. Welds arn't pretty I will clean them up more tomorrow
    Attached Images Attached Images     
    https://www.youtube.com/watch?v=7bNS...e_gdata_player 10.070 video
    Best ET to date 10.070
    Best MPH to date 130.51
    best 60' to date 1.312
    MPX blower/ NO NITROUS!

  14. #14
    Join Date
    Nov 2004
    Location
    Brantford, ON
    Posts
    5,383
    It'll be interesting to see the results.....

    Fraser

  15. #15
    Join Date
    May 2003
    Location
    Omaha, Nebraska
    Posts
    6,157
    Nobody likes modifing parts like me, but in many previous threads it was agreed that the lower intake could only flow so much air, and mods increasing voluum in werent a real improvement. Am I wrong there???

    Ken

    93 SC Whipple powered 11.648 @ 119.6
    Twin Turbo, air intercooled..yet to see

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