1. Strype

    Strype Cuthbert catcher Founding Member

    Joined:
    May 11, 1999
    Messages:
    2,714
    Likes Received:
    371
    Trophy Points:
    104
    Location:
    Huntsvegas, AL
    My buddy just bought an 88 GT (pictured below). It's got the whole HCI thing done. I drove it back most of the way (200 miles). It didn't take me long to realize that 1st gear was USELESS.

    Me -> :scratch:

    Then I get on the highway and I'm in 5th gear at 70 mph turning a little over 3,000 RPM.

    Me -> :fuss:

    I could floor the car in 5th and scare myself to death. So when we got back I used an online calculator and found that for an 88 GT, at 70 mph and 3100 rpm it would have to have a 4.90 gear ratio :jaw:

    Another one for the WTF file until he gets the gears out and counts the teeth. I bet that transmission isn't stock...

    Thoughts? Questions? Quips?



    88gt.png
    #1
  2. RangerJoe

    RangerJoe Advanced Member

    Joined:
    Apr 27, 2010
    Messages:
    1,170
    Showcase:
    3
    Albums:
    1
    Likes Received:
    175
    Trophy Points:
    74
    Location:
    Georgia
    Beautiful car. My father-n-law runs 5.13's, but it sees 8800rpms and no street time.

    Joe
    #2
  3. clement

    clement Founding Member

    Joined:
    Feb 27, 2001
    Messages:
    1,107
    Likes Received:
    51
    Trophy Points:
    49
    Location:
    Oak Cliff
    assuming your speedo is correct and a tire diameter a little under 26" and a .68 od its probably got a 4.56 in it.
    #3
  4. 88LX5.Oh

    88LX5.Oh Advanced Member

    Joined:
    Dec 31, 2011
    Messages:
    1,455
    Likes Received:
    210
    Trophy Points:
    74
    Location:
    Arkansas
    Yeah I'm with Clement, bet it's 4.56's. Don't fear the gear!
    #4
  5. NIKwoaC

    NIKwoaC 中國製造

    Joined:
    Nov 1, 2006
    Messages:
    8,447
    Likes Received:
    699
    Trophy Points:
    164
    Location:
    Chengdu Province
    Don't fear the gear... Unless you've got 4.56s in a street car haha.
    #5
    toolow91 likes this.
  6. Mustang5L5

    Mustang5L5 Car used in adult film "Highway Gangbang-InDaButt" SN Certified Technician Founding Member

    Joined:
    Feb 19, 2001
    Messages:
    21,635
    Likes Received:
    307
    Trophy Points:
    124
    Location:
    Massachusetts
    It probably has a 4-cylinder T-5 in it.

    3.79 first gear ratio and either a .79 or .85 5th gear ratio in those bad boys. Toss some 3.73's in the rear and you've got truck gearing

    Do your calculator based on that and see what you get for numbers
    #6
  7. elarm1

    elarm1 Active Member

    Joined:
    Dec 17, 2010
    Messages:
    783
    Likes Received:
    195
    Trophy Points:
    54
    Location:
    N.Va
    Nice whip there!
    #7
  8. Grabbin' Asphalt

    Grabbin' Asphalt Mustang Master

    Joined:
    Jun 11, 2013
    Messages:
    1,940
    Showcase:
    25
    Albums:
    1
    Likes Received:
    277
    Trophy Points:
    94
    Location:
    Atlanta, Ga

    ^^^^ check the tranny first!!!
    #8
  9. cenok is family

    cenok is family Active Member

    Joined:
    Jun 26, 2003
    Messages:
    1,401
    Likes Received:
    17
    Trophy Points:
    39
    Location:
    Norman, Ok
    i agree with Mike. probably has a 4 banger t5. you can jack the rear end up, rotate a wheel one full rotation, and count how many times the driveshaft spins. a little over 4 rotations = 4.10's, ~4 1/2 spins = 4.56's, and so on.
    #9
    7991LXnSHO likes this.
  10. Gearbanger 101

    Gearbanger 101 Straight Outta Locash Super Mod

    Joined:
    Aug 11, 2002
    Messages:
    14,410
    Likes Received:
    917
    Trophy Points:
    164
    Location:
    Ontario, Canada
    Ha....tell him that when he gets smoked by a guy running 3.55's. :D
    #10
    elarm1 likes this.
  11. FoxMustangLvr

    FoxMustangLvr Mustang Master

    Joined:
    Oct 15, 2012
    Messages:
    1,051
    Likes Received:
    355
    Trophy Points:
    94
    Location:
    Spokane, Wa
    Did he purchase this car online like Ebay or something? With a test drive he'd of known the gearing was way to high and that would've been a negotiating factor to get the price down a bit. How much did he pay for that thing?
    #11
  12. 7991LXnSHO

    7991LXnSHO Active Member

    Joined:
    Sep 1, 2010
    Messages:
    1,162
    Showcase:
    5
    Albums:
    1
    Likes Received:
    99
    Trophy Points:
    49
    Location:
    North Platte, NE
  13. Strype

    Strype Cuthbert catcher Founding Member

    Joined:
    May 11, 1999
    Messages:
    2,714
    Likes Received:
    371
    Trophy Points:
    104
    Location:
    Huntsvegas, AL
    He's at home tinkering now. The tach was off by 1000 for one thing. Bu t when you turn the wheel and measure the driveshaft it puts it at 2.73s. Transmission HAS to be a 4 cylinder just as 5L5 and others have said.
    #13
  14. Strype

    Strype Cuthbert catcher Founding Member

    Joined:
    May 11, 1999
    Messages:
    2,714
    Likes Received:
    371
    Trophy Points:
    104
    Location:
    Huntsvegas, AL
    He'll have to pull that tranny and check for a bushing I'm guessing.
    #14

Share This Page