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    1. #1
      Join Date
      Jan 2010
      Location
      starkville ms
      Posts
      218
      Country Flag: United States

      improving aerodynamics???

      I was wondering if anyone could give me some suggestions on improving the aerodynamics on my 1969 amc amx and how good or bad they are stock?



    2. #2
      Join Date
      Mar 2008
      Posts
      952
      read the articles linked in the other aero thread- the one about the vortex generators and what not.

    3. #3
      Join Date
      Nov 2008
      Location
      TN
      Posts
      959
      Quote Originally Posted by novaderrik View Post
      read the articles linked in the other aero thread- the one about the vortex generators and what not.
      Good advice, Then remember that most 60's-70's cars create a lot of lift in the front. That is why people said they wandered at higher speeds.

      After you read those other threads see if you have any specific questions we can help you with.
      Benjamin

      Twin Dusters
      '72 Plymouth Duster "Aero Duster" project
      '72 Plymouth Duster "Daily Duster" project
      https://www.pro-touring.com/showthre...RO-DUSTER-quot

    4. #4
      Join Date
      Jan 2010
      Location
      starkville ms
      Posts
      218
      Country Flag: United States
      I read those very good informationa I plan on trying somethings like that

    5. #5
      Join Date
      Oct 2009
      Location
      New Derry, PA
      Posts
      1,265
      Country Flag: United States
      Read Mark Donohue's book, "The Unfair Advantage" (if for no other reason!). There is a whole chapter on what they did to the 70-71 Javelins to make them Trans-Am winners.

      Ray Kaufman - Wyotech Chassis Fab and High Performance Instructor. Words of Wisdom from an old master... at Asylum Custom Interiors website

    6. #6
      Join Date
      Jul 2010
      Location
      Colorful -- Colorado
      Posts
      10
      My understanding a stock bodied 68 & 69 AMX has a CD of .54 , not bad for it's day .
      I pushed my AMX to a certified 180mph at the Silver State in May 2000 with 500hp & 450+ftp , 401 , Richmond ROD 6spd , Dana 20 with 3.15:1 rear , final drive 2.38:1 , 24.5" tall tires and to smoothe out the car .......... a front air damn & side skirts + about 40ft of red , white & blue duct tape to smooth the edges and help keep anything from falling off .
      A big help for keeping the front end down at high speed ........... a 2 to 4 degree rake and the air damn helps keep the dirty air (turbulance) from under the car

    7. #7
      Join Date
      Jul 2010
      Location
      Colorful -- Colorado
      Posts
      10
      Quote Originally Posted by 69lsxamx View Post
      I was wondering if anyone could give me some suggestions on improving the aerodynamics on my 1969 amc amx and how good or bad they are stock?
      Use some duct tape ................a stock bodied 68 & 69 AMX has a CD .54 .

      Read the post just above ..............

    8. #8
      Join Date
      Nov 2008
      Location
      TN
      Posts
      959
      Quote Originally Posted by thumperamx View Post
      My understanding a stock bodied 68 & 69 AMX has a CD of .54 , not bad for it's day .
      I pushed my AMX to a certified 180mph at the Silver State in May 2000 with 500hp & 450+ftp , 401 , Richmond ROD 6spd , Dana 20 with 3.15:1 rear , final drive 2.38:1 , 24.5" tall tires and to smoothe out the car .......... a front air damn & side skirts + about 40ft of red , white & blue duct tape to smooth the edges and help keep anything from falling off .
      A big help for keeping the front end down at high speed ........... a 2 to 4 degree rake and the air damn helps keep the dirty air (turbulance) from under the car
      Do you have pictures?
      Benjamin

      Twin Dusters
      '72 Plymouth Duster "Aero Duster" project
      '72 Plymouth Duster "Daily Duster" project
      https://www.pro-touring.com/showthre...RO-DUSTER-quot

    9. #9
      Join Date
      Jul 2010
      Location
      Colorful -- Colorado
      Posts
      10
      You can find pics all over the net , AMX-perience.com , click on Silver State cars , click on "Thumper" , there are some on this site (somewhere) AMX search " Does anyone know who owns this AMX" , I'll figure out how to load some when I do my PT Garage .

    10. #10
      Join Date
      Nov 2008
      Location
      TN
      Posts
      959
      cool! What did you make your side skirts out of?
      Benjamin

      Twin Dusters
      '72 Plymouth Duster "Aero Duster" project
      '72 Plymouth Duster "Daily Duster" project
      https://www.pro-touring.com/showthre...RO-DUSTER-quot




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