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st165 vs st185 gearbox

Discussion in 'Drivetrain' started by blade8, Jul 15, 2009.

  1. blade8

    blade8 Guest

    what are the differences between the gearboxes? any?
  2. Alwayzsidewayz

    Alwayzsidewayz ST162 Guru Donated!

    The gearboxes from start to finish got progressivly stronger.
    So the 185 gearbox is not as prone to wear as the 165 one. the 205 box is even stronger.

    The 185 and then 205 also have a closer ratio set compared to the 165.
    I have a 205 box in mine.
    First is noticably shorter and the whole car is more urgent though the rev range. For example the car now revs at 3,000 rpm doing 70mph, rather than 2,450 rpm for the same speed with the 165 box.

    Fitting is pretty simple, with the 205 box, all I had to do was swap over the 165 box mounts, speedo drive etc.

    I run a standard 205 clutch, which is good for 300bhp and cheap, while giving great pedal feel.
  3. mifitso

    mifitso Guest

    whats a gearbox?
  4. Celic_GT2

    Celic_GT2 Well-Known Member Moderator Donated!

    transmission, and in this case, w/ transfer case
  5. blade8

    blade8 Guest

    pity about the ratios being shorter i like smoking up mitsubishi gsr's cause they pulling 3rd while i can still hold second. i wish i could do the 205 conversion but i brought a whole 185 parts car for $300 nzd and i 205 box goes for about $1200nzd. will i need to change my rear diff? is the 185 better then 165?
  6. Alwayzsidewayz

    Alwayzsidewayz ST162 Guru Donated!

    A standard rear 185 diff is no different really to the 165, inless yours is noisy I would not bother swaping.

    If you can find a rear diff from a ST185 RC / or Carlos Sainz model or the uber rare rallye version, then you get the benifit of a limited slip diff for the rear which will aid traction, but make the car more tail happy.

    A st205 rear diff also comes with the LSD as well.

    I have never heard of a 165 rear diff being blown up yet, so they must be tough old things.

    Its not a bad idea to keep try and find a different box one day as given your engine plans, I would see the 165 box as the weak part, once you are up to 300bhp plus.

    additional gearbox info, my mistake btw, the domestic market 185 for your market looks like it has the same ration set as the 165 box?

    GT4 gearbox list
    E50F1 86-87 Japan spec. ST165 (locking diff)
    E50F2 (2 is usually dropped) all 87-89 ST165
    E150F ST185, USA versions
    E151F ST185, in Europe and Australia.
    E152F ST185 rally, (Japanese version).
    E154F ST205

    All ST165 - 185 - 205 Gearboxes are 5 speed manual
    Gears E50F2 E150F E151F E152F E154F
    1st 3.583 3.384 3.583 3.230 3.384
    2nd 2.045 1.931 2.045 2.041 1.913
    3rd 1.333 1.333 1.333 1.518 1.258
    4th 0.972 0.972 0.972 1.258 0.918
    5th 0.731 0.731 0.731 0.731 0.731
    Reverse 3.583 3.545 3.545 3.545 3.545
    Final drive ratio 3.933 4.285 3.933 4.285 4.285

    According the EPC, the gearbox internals of the facelifted Celica (ST185, after no. 15446) are the same a the CS versions, but the transmission case is still listed as E150F??? Don't ask me why, I don't know.

    There should be four Japanese ST185 gearboxes. The normal 4.285 89-91 gearbox, the Rally gearbox (E152F) with different ratios, the RC box (3.933) and I (RD) *believe* that after 91 the standard car also got the dual cone RC synchros.
    Not sure on that.

    It looks like you spec 185 box, if its an oz model is identical to the 165, so there looks to be no benifit to the change?

    re the link, there is a lot of help and resources for that in the UK, make sure you get a good mapper who knows the software well, as there has been so many updates and revisions, it can be awkward at times.
  7. ST185GT

    ST185GT Member

    is the st165 5 speed gearbox fwd, or are those cars also 4wd.
  8. LionTR

    LionTR Well-Known Member Donated!

    ST165 is 4wd.
  9. Stig

    Stig ST162 Guru Donated!

    All the "5" are AWD, ie ST165, 185, 205 as well as the AWD Caldina ST215 which uses a Celica motor/box.

    There are also AWD auto Camry's (JDM only?) which share the Celica transfer, diffs etc

    The only RWD 3S-GE is the Altezza/is200

    ST165 (early JDM only) uses a viscous pneumatic transfer
    ST165 (late) & ST185 use the same gearbox
  10. Spiderman

    Spiderman Well-Known Member

    hahahahahahahaha................. :cheers hahahahahahahaha

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