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  1. #21
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    Quote Originally Posted by AllanOrr View Post
    Not exactly true because I am taking the rear of the Z32 casing and putting it on the RB25 bellhousing with RB25 internals and using Mazworx's short shifter kit for the Z32 rear casing means I wont need to trim any of the shifter housing where it comes through on the standerd 6 speed as their kit makes it come through at the same angle, I have been told this will work by one of the leading guys in the UK as he has done this before but will keep an up date on my members thread of how it goes
    Please let me explain...

    The facts so far...

    • You know that the rb25 and z32 gearboxes are basically the same internally, which means the major differences are external, IE their housings.
    • You also know that the rb25 and the z32 bellhousings / front housings are basically the same in length, and the housings can be interchanged freely with no modifications, therefore swapping bellhousings around is pointless for us as it will not change the shifter position.


    So at this point, for the scope of this discussion, everything at the front of the gearboxes are basically the same.

    You now know that the major difference is the rear housings - the rb25 rear housing where the shifter sits is TOO SHORT, whilst the z32 rear housing where the shifter sits is TOO LONG, therefore the shifter position is determined by the rear housing.


    IE
    Z32 rear = TOO LONG = shifter sits behind your shifter hole
    RB25 rear = TOO SHORT = shifter sits in front your shifter hole


    So.....

    1. If you swap a z32 rear housing onto a rb25 gearbox, then you have a gearbox with a shifter that is TOO LONG because, as you know, the z32 rear housing determines the shifter position.

    2. And likewise, if you swap a rb25 rear housing onto a z32 gearbox, then you have a gearbox with a shifter that is TOO SHORT because, as you know, the rb25 rear housing determines the shifter position.

    The same thing will happen if you swap bellhousings.
    I hope I make sense and hope that is helpful.



    The shifter position solution that we at ALPHA OMEGA Parts and Services has came up with is to manufacture parts that will bring the z32 shifter position back into the standard shifter hole - this is another reason why we chose the z32 gearbox because the shifter design allows us to get the shifter in the shifter hole (and the rb25 shifter design does not)

  2. #22
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    Quote Originally Posted by NICKO View Post
    RHD sell another six speed gearbox thats been modified by HPI and its rated to 430PS, I know its a wee bit expensive but if my box ever goes bang this is what im thinking about

    http://www.rhdjapan.com/hpi-6-speed-...ia-180sx-58394
    Yep as I mentioned earlier it's a modified NISMO gearset (both of which do not address or fix the circlip issues)...

    Quote Originally Posted by _Wing_ View Post
    ...(there's also HPI that does an upgraded version of NISMO), and for the money you spend the results are... not what you'd expect.

  3. #23
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    Dude I think we are getting a bit confused over what I am saying here, I know what the main differences are between the 2 set ups I am putting the Z32 rear case on to a RB25 Bellhousing with internals,
    You are not the only supplyer that can supply these kits to fix this issue as I said before Mazworx do a short shifter kit that will change the posision of the Z32 shifter the reason I am using RB25 Internals and Bell Housing is they are easyer to come across in the UK,
    So as I said before I will not need to trim any parts by using the Kit Mazworx can supply me the main reason for doing this is no one has made a driver friendly version of it for the RB25 in the UK with out it being a swan neck type set up which I have been told can feel a bit weird when changing gear.
    Last edited by AllanOrr; 11-01-2011 at 19:44.

  4. #24
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  5. #25
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    I just sent Mazworx an email regarding the specifics of their kit in a S15. That's most likely the kit I'll be using, I just picked up a Z32 transmission today. I just wish I didn't have to send the bellhousing in to be machined. When they email me back I'll post the info here.

  6. #26
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    Quote Originally Posted by _Wing_ View Post
    Hey dude sorry I never seen your reply

    I think thats the one honestly not 100% I have a list that Polo gave me on what to order etc but its in the boot of my S15 so cant remeber exactly whats on it lol

    Quote Originally Posted by Hypnotik View Post
    I just sent Mazworx an email regarding the specifics of their kit in a S15. That's most likely the kit I'll be using, I just picked up a Z32 transmission today. I just wish I didn't have to send the bellhousing in to be machined. When they email me back I'll post the info here.
    Lol the joys mate would be good to see what results you get back from them though

  7. #27
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    Quote Originally Posted by Hypnotik View Post
    I just sent Mazworx an email regarding the specifics of their kit in a S15. That's most likely the kit I'll be using, I just picked up a Z32 transmission today. I just wish I didn't have to send the bellhousing in to be machined. When they email me back I'll post the info here.
    Why not get a s15-to-z32 gearbox conversion kit that bolts straight on, no bellhousing mods needed at all and you get to keep your s15 clutch/flywheel too?

  8. #28
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    Quote Originally Posted by AllanOrr View Post
    Hey dude sorry I never seen your reply
    I think thats the one honestly not 100% I have a list that Polo gave me on what to order etc but its in the boot of my S15 so cant remeber exactly whats on it lol
    Cool it will be interesting to see how things turn out

  9. #29
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    Thats it dude its all part of the fun

  10. #30
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    Quote Originally Posted by _Wing_ View Post
    Why not get a s15-to-z32 gearbox conversion kit that bolts straight on, no bellhousing mods needed at all and you get to keep your s15 clutch/flywheel too?
    That would be great if it didn't cost more than double the Mazworx kit. The Mazworx kit also allows my to keep my clutch/flywheel.

    Mazworx
    -adapter
    -crossmember
    -shifter
    -shifter bracket
    -1 piece driveshaft
    -all hardware
    = $1090

    AO-PS
    -adapter
    -crossmember
    -shifter + $290
    -shifter bracket
    -1 piece driveshaft + $750
    -all hardware
    = $2540

    I'm sorry but I don't see the point of paying double for the same thing.
    Last edited by Hypnotik; 18-01-2011 at 22:25.

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