Gearbox options for replacing 240z autobox with RX8 6 speed?? | Page 2 | The Z Club of Great Britain
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Gearbox options for replacing 240z autobox with RX8 6 speed??

Discussion in 'S30 (240Z,260Z,280Z) Drivetrain' started by hallie, Jul 14, 2019.

  1. atomman

    atomman Active Forum User

    The R180's shafts are bigger diameter, the R160's are similar to the Datsun items , not sure on weight but the R160 is smaller/ lighter by design, but a quick google comes up with this figure - R160 ~52lbs R180 ~64lbs

    Here's mine , you wouldn't know to look at it , unless you know the differences

    R160 diff.jpg
     
  2. franky

    franky
    Z Club Member

    I'd buy that r160 4.11 if you do not want it.
     
  3. atomman

    atomman Active Forum User

    Not seen the ones that stick out before, will have a look at my parts book
     
  4. Robbie J

    Robbie J
    Z Club Member

  5. johnymd

    johnymd
    Z Club Member

    I'm still on the lookout for a r180 LSD and would be happy to pay up to £300.
     
  6. IbanezDan51

    IbanezDan51
    Z Club Member

    I have an R180 LSD 3.9 but its not going anywhere for less than 400 :D Not seen another for sale in months and I'd rather have it as a spare.
     
  7. Robbie J

    Robbie J
    Z Club Member

    East Kent Subaru Spares have them every so often, if you see them on ebay and ring them up they are 20% cheaper

    looks like my R180 STI Diff was a bargain then but we will only know when it's in the car
     
  8. IbanezDan51

    IbanezDan51
    Z Club Member

    Depends on the ratio as we have said before.

    The problem is - if someone with a Japanese import 04-05 Subaru WRX STI (a rare car now) has a problem with the diff its getting difficult to find them with this ratio. The 3.54 was much more common. You can pick up the 3.54 relatively easily for 150-250.
     
    franky likes this.
  9. Robbie J

    Robbie J
    Z Club Member

    so there is a RX8 adapter place on facebook saying
    "If you don't see an engine type that you would like us to make an adaptor plate for please contact me as i am always interested in expanding in engine types. I will need a gearbox off the engine in question so i can draw up a cad drawing from it and if the engine isn't a popular type i might need 5 people/5 deposits to cover start up and tooling fees. "

    can't see an L series on it, RX8 gearboxes are so cheap 6 speeds £200 and 5 speeds are £50

    https://www.facebook.com/groups/1779024555682316/about/
     
  10. jonbills

    jonbills
    ZClub Administrator
    Staff Member Moderator

    Do the rx8 boxes have a mechanical speedo drive or would you have to convert to a GPS speedo?
     
  11. Robbie J

    Robbie J
    Z Club Member

    My mate that has an RX8 thinks it's mechanical... he will do some checking. He has only had his engine rebuilt twice so far.
     
    jonbills likes this.
  12. jonbills

    jonbills
    ZClub Administrator
    Staff Member Moderator

    He must have done about 120,000 miles then
     
  13. Robbie J

    Robbie J
    Z Club Member

    more like 50K....
     
  14. johnymd

    johnymd
    Z Club Member

    I think the rx8 engines are considered service items. Maybe not replaced every service but still at regular intervals. There's 2 sitting outside my workshop, with problem engines.
     
    Robbie J likes this.
  15. jonbills

    jonbills
    ZClub Administrator
    Staff Member Moderator

    Maybe they should upgrade to Nissan L power.
     
  16. Robbie J

    Robbie J
    Z Club Member

    I have suggested several engines but I think he likes his oil burner
     
    jonbills likes this.
  17. Tony 260Z

    Tony 260Z
    Z Club Member

    Interested to see where this thread goes because my gearbox is misbehaving!
     
    jumbobeck likes this.
  18. Robbie J

    Robbie J
    Z Club Member

    so the RX8 adapter guy came back with
    "Hi, thanks for your message. How many adaptors will you be looking to buy? Can you get a group buy together? And what sort of turn around time will you be looking at? I will need a block/crank flywheel and starter motor to do the work too. Thanks."

    I'm going to pass this over to Hallie as I already have a 6 speed.. My car is coming to bits next month so you have the prototype parts

    is there 5 people who would buy an adapter would put their name down for this?
     
  19. Robbie J

    Robbie J
    Z Club Member

    £130 each for 5 people and £115 for 10 people, since I paid £400 for my RB to 370Z adapter that's a bit of bargain
     
    Chappers likes this.
  20. jonbills

    jonbills
    ZClub Administrator
    Staff Member Moderator

    I think I'd go for it.
     

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