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1983 Jeep Cherokee AMC 401 83mm build

Discussion in 'The Turbo "Builds" Board' started by ghinmi, Sep 6, 2011.

  1. ghinmi

    Joined:
    Sep 25, 2006
    Got a chance to do one autocross with the Porsche club. It's the only one of the whole season in our area, everything else is cancelled. It was a very tight course which was not good for the Jeep but it still did ok. They never posted the results online and I haven't been able to find any action shots.

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    And did some camping.

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    nxcoupe and Disney Lincoln like this.
  2. ghinmi

    Joined:
    Sep 25, 2006
    Now. Back to the fun times. Party tires back on, we're going to the track!

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    I had noticed that the injector duty cycle had gone WAY up at the same boost levels. So I had a good idea the freshened up motor made a fair bit more power but I had no idea it was that much. The previous best 10.36 @ 136 was at 24 psi. I ran it at 22 psi all night this time. First pass straight off the street, soft launch, short shifting was a 10.13 @ 139! Wow! Huge gains! I turned the launch up 400 rpm and shifted higher. And was rewarded with............

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    Heck yes!!!!! Finally in the 9s! And at 140 mph!

    Went back around again and another one! 9.97 @ 140 mph!

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    Best part is that I got to drive it home and didn't work on it the whole time!
     
    62CometTurbo, BBR, Joeyman and 5 others like this.
  3. ghinmi

    Joined:
    Sep 25, 2006
    And what do you do the morning after you run your first 9 second passes? You hook a buddy's turbocharged hyrdo to the back of it and go for a boat ride.

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    And another boat on Holley EFI that I got to tinker on.

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  4. Mnlx

    Joined:
    Sep 20, 2009
    What springs? 1219's?
     
    Br396 likes this.
  5. ghinmi

    Joined:
    Sep 25, 2006
    They're 1232x, intended for the 6.4 application. Had to cut so much out to save the valve seats it gained me some installed height and thinner shims than stock. Still more seat pressure than I'd like but they're what I had and it's nice to have parts commonality with other engines in the shop.
     
  6. Mnlx

    Joined:
    Sep 20, 2009
    Thanks for the info! I'm into the compound setup.
     
  7. Russell

    Joined:
    Jan 13, 2019
    I think if you ever wanted to paint it (not that it's needed because it beautiful). You should paint it to look like the Swiss army knife it is. This thing is amazing!
     
  8. Drac0nic

    Joined:
    Feb 28, 2005
    Just wanted to say that this is utterly epic. What an awesome ride that's taken everywhere.
     
    Pro-SC likes this.
  9. castine917

    Joined:
    Aug 25, 2013
    Lucky guess or I was stalking you when I wasn't trying to intimidate you. :dontknow:
     
  10. az92coupe

    Joined:
    Mar 21, 2005
    You made Holleyperforance Instagram feed. Looks like you are autocrossing
     
  11. Russell

    Joined:
    Jan 13, 2019
    I saw it in Indy at Dragweek.
     
  12. ghinmi

    Joined:
    Sep 25, 2006
    You guys are correct, we stopped in to see Drag Week in Indy to spectate. We were on our way to Bowling Green KY to autocross. I need to update this post, it's been over a year and we've done a ton of things since then.
     
  13. B E N

    Joined:
    Nov 22, 2016
    Yah you do :)
     
    74chlngrTT5.9 and tbird like this.
  14. 74chlngrTT5.9

    Joined:
    Dec 16, 2009
    In for updates....
     
  15. Pro-SC

    Joined:
    Feb 8, 2014
    You have always have great updates!
     
  16. B E N

    Joined:
    Nov 22, 2016
    Evidently this "Mopar" is legendary :shakehead::shakehead::shakehead:

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    Hope to see some updates!
     
    nxcoupe and Russell like this.
  17. Drac0nic

    Joined:
    Feb 28, 2005
    It's as much a Mopar as my 82 Eagle. :rofl:
     
  18. Mnlx

    Joined:
    Sep 20, 2009
    Does your 82 Eagle have a Hemi too?
     
  19. Drac0nic

    Joined:
    Feb 28, 2005
    No, but it's got an A904 transmission. :p
     
    Mnlx and B E N like this.
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