Page 2 of 4 FirstFirst 1234 LastLast
Results 21 to 40 of 80

Thread: Pushing 200SX + CA18DET to the limit

  1. #21
    Guest
    Join Date
    May 2001
    Location
    Cardiff, UK
    Posts
    17,799
    Rides
    0
    Power doesn't break gearboxes, torque does. Course they are related..
    Last edited by Papa Lazarou; 27-07-2006 at 18:59.

  2. #22
    Guest Chris B's Avatar
    Join Date
    Sep 2002
    Location
    Reading
    Posts
    9,729
    Rides
    0
    Papa is correct here

  3. #23
    Guest ByReaL's Avatar
    Join Date
    Feb 2005
    Location
    Bucharest/Romania or LA/Cali
    Posts
    976
    Rides
    0
    Quote Originally Posted by Chris B
    Papa is correct here

    yap this is true but more HP more torque also and the gearbox will brake

    so this topic will remain here forever in serch of someone that found a cheap solution to a CA stronger gearbox


    so the ideea of makeing an exact copy to the CA gearbox just using better materials how does it sems to you ?

  4. #24
    committed. Jezz_S13's Avatar
    Join Date
    Jun 2001
    Location
    Swansea, South Wales
    Posts
    45,369
    Rides
    0
    Quote Originally Posted by ByReaL

    so the ideea of makeing an exact copy to the CA gearbox just using better materials how does it sems to you ?
    Pretty pointless as you're not going to find materials that are significantly stronger; the design needs to change to reap good benefits.

    It was discussed last week.
    http://www.sxoc.com/vbb/showthread.php?t=228412

  5. #25
    Guest ByReaL's Avatar
    Join Date
    Feb 2005
    Location
    Bucharest/Romania or LA/Cali
    Posts
    976
    Rides
    0
    come againt on the gearbox subject.


    CA18DET gearbox can be made a little bit stronger using parts from SR20DET gearbox ?
    SR20DET gearbox can be made stronger by using some parts/kit.. from VG30DETT gearbox ?

    why CA18DET gearbox can't be made stronger using VG30DETT gearbox parts,

    is anyoane here who belives that froma CA18DET gearbox and a VG30DETT gearbox can be made a hibrid gearbox that could work on the CA18DET?

    what if the bell housing is also moded .....

    (VG30DETT gearbox is stronger then OS giken gearbox used on CA18DET ??)

  6. #26
    committed. Jezz_S13's Avatar
    Join Date
    Jun 2001
    Location
    Swansea, South Wales
    Posts
    45,369
    Rides
    0
    You have to use all of the VG30 or RB25 gearbox, you can't use bits of it.
    Have a look here...
    http://www.sxoc.com/vbb/showthread.php?t=224882


    I believe that you can modify the bell housing of the VG or RB box to fit the CA; it has been done to fit it to the SR so I don't think there's any reason it can't be done for the CA.
    You will need to adapt the prop and gearbox mounts as well as the bellhousing.

    OS Giken quote the strength of their kit to be upto 600bhp, but this is a bit misleading as engine torque curve and driving style makes all the difference.
    The Z32/RB box is supposedly good for more than that.

    Using SR box bits to make a CA box stronger isn't worth entertaining.

  7. #27
    Guest ByReaL's Avatar
    Join Date
    Feb 2005
    Location
    Bucharest/Romania or LA/Cali
    Posts
    976
    Rides
    0
    Quote Originally Posted by Jezz_S13
    I believe that you can modify the bell housing of the VG or RB box to fit the CA;

    ok one more qestion modyfi, or remake it from 0 (zero) ?

  8. #28
    committed. Jezz_S13's Avatar
    Join Date
    Jun 2001
    Location
    Swansea, South Wales
    Posts
    45,369
    Rides
    0
    You can modify it, that's what they do to make it fit the SR.

  9. #29
    Guest
    Join Date
    Aug 2003
    Location
    Bedfartshire
    Posts
    10,619
    Rides
    0
    and of course clutches come into it. paddles help to break boxes.

    you need a bit of give somewhere, and if it's not the clutch, and you have grippy tyres, then............

  10. #30
    Guest ByReaL's Avatar
    Join Date
    Feb 2005
    Location
    Bucharest/Romania or LA/Cali
    Posts
    976
    Rides
    0

    Question

    so parts needed will be

    a CA18DET engine block
    a VG30DETT box

    a CA18DET or a VG30DETT flyweel ?
    a CA18DET or a VG30DETT clutch ?
    a CA18DET and a VG30DETT prop shaft, and have a hybrid one made from this 2 or a new one that will fit betwen the dif and the box

    important part will be to have the gear shaft (the one on that is monted the clutch) alignet perfectly with the engine, and the back side of the gearbox aligned also perfectly with the diff


    let's say i do this conversion and i'll be succesful in doing that

    what dif should i use so it can handle also almost same amount of power as the VG30DETT box

    an S14 dif will be ok ? other diff will be needed ?


    PS: seams so cheap to pass 300hp mark on CA18DET but so expensive to make them/it realiable
    Last edited by ByReaL; 09-08-2006 at 12:19.

  11. #31
    committed. Jezz_S13's Avatar
    Join Date
    Jun 2001
    Location
    Swansea, South Wales
    Posts
    45,369
    Rides
    0
    CA18 cltuch and flywheel (the Z32 gearbox input shaft is the same as the CA gearbox)

    Std S13/S14 diff is fine.

    Aligning the input shaft is absolutely critical.
    Aligning the output to the diff isn't as critical as there are joints on the prop to account for this. Though if it mounts to the engine properly then it'll be right anyway.

  12. #32
    Guest ByReaL's Avatar
    Join Date
    Feb 2005
    Location
    Bucharest/Romania or LA/Cali
    Posts
    976
    Rides
    0
    - the lenght of the 2 boxes is the same ?

    -the gear changing stick will fit in same place ?

    - montinh the box to the 200SX i think this will have to be custom made and be a very strong thing , in order to suport the box

    so from what i understand the problem will be to get togather the engine and the box in a proper way


    and this may be done i belive with some custom work on the VG30DETT gearbox bellhousing



    in this setup were do you think may be a failure point and why?
    Last edited by ByReaL; 09-08-2006 at 14:09.

  13. #33
    committed. Jezz_S13's Avatar
    Join Date
    Jun 2001
    Location
    Swansea, South Wales
    Posts
    45,369
    Rides
    0
    The gearstick sits a bit further back, about 2 inches.

  14. #34
    Guest ByReaL's Avatar
    Join Date
    Feb 2005
    Location
    Bucharest/Romania or LA/Cali
    Posts
    976
    Rides
    0
    anyoane on here has some drawings (tehnical one) with theface oftheVG30DETT gearbox (engine side) and with the CA18DET engine block (gearbox side) so i can do some forecast (to see how they could be matched) to see if this project can be done, before i buy such a gearbox

    http://www.nissanforums.com/s13-240s...x-ca18det.html
    no progres on that project

    VG30DETT gearbox?
    VG30DE gearbox?
    i asume we talk about Z32 but from what years?

    only 5 speeds? or 6 speeds is available also ?
    manual or auto ? witch is stronger ?


    black is the CA gearbox and with red is the VG gearbox (300zx from 1990)
    ineed theseparate pictures of 2 but with sizes betwen bolts........, if anyoane has more precise drawings please help


    [IMG]http://forum.4tuning.**/imagehosting/120744db7a8ed9bbb.gif[/IMG]
    Last edited by ByReaL; 10-08-2006 at 18:29.

  15. #35
    Guest ByReaL's Avatar
    Join Date
    Feb 2005
    Location
    Bucharest/Romania or LA/Cali
    Posts
    976
    Rides
    0
    does anyone has more acurate schematics with the 2 gearboxes?

  16. #36
    Guest MarcRRN's Avatar
    Join Date
    Dec 2005
    Location
    Scotland, isle of bute
    Posts
    739
    Rides
    0
    is there any advantage in fitting a sr gearbox on a ca block?
    can a rb25 gearbox fit the ca block?

  17. #37
    Guest Damo's Avatar
    Join Date
    Feb 2005
    Location
    stealcity, sheffield
    Posts
    8,764
    Rides
    0
    have a chat with phatbob he know lots about gearboxs

    im using an rb20det internal on the ca18det shafts as its 60mm shorter

    big dave used this box at 380 with no problems at all i was around 350 did 19 5500 laurchs at york drag strip was ok but by end of day i started to have problems getting into 3rd 7000revs +

    damo

    damo

  18. #38
    Guest ByReaL's Avatar
    Join Date
    Feb 2005
    Location
    Bucharest/Romania or LA/Cali
    Posts
    976
    Rides
    0
    did a little bit of reserch about the gear ratio and :

    Synchro type on each gearbox is the same type: Warner
    same shift patern on both gearboxes

    gear...CA18DET.........VG30DE(TT)
    1.........3.592...............3.214
    2.........2.057...............1.925
    3.........1.361...............1.302
    4.........1.000...............1.000
    5.........0.821...............0.752
    R.........3.657...............3.369

    it seams that the VG30DE and VG30DETT gearboxes have same ratio witch are longer then CA18DET (europe) gearbox ratio.


    PS: it is the VG30DE and VG30DETT gearbox same gerbox (on Nissan manual it is listed with same code) or VG30DE gearbox is diferent from the VG30DETT gearbox ?? in witch way they are different ?

    what is the ideea with getrag? what does this means ?

  19. #39
    Guest ByReaL's Avatar
    Join Date
    Feb 2005
    Location
    Bucharest/Romania or LA/Cali
    Posts
    976
    Rides
    0
    after about 2 years of inactivity i removed the front bell housing of my CA18DET gearbox and installed it on a SR20DET gearbox,

    the SR gearbox seams to be the exact same size as the CA after the frontal bell housing swap,

    although the speed sensor from CA and SR boxes are not exactly the same i could fit the CA speed sensor on the SR box

    also the mounting points seams to be the same i could use the CA traverse with no problems

    also the CA gear changing stick fitted just fine in the SR box.

    to be honest i don't thing is much of an upgrade , but we will see

  20. #40
    Guest
    Join Date
    May 2005
    Location
    Gothenburg, Sweden
    Posts
    1,856
    Rides
    0

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •