Suretrac LSDs | Page 2 | The Z Club of Great Britain
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Suretrac LSDs

Discussion in 'S30 (240Z,260Z,280Z) Drivetrain' started by atomman, Feb 2, 2019.

  1. atomman

    atomman Active Forum User

    Your right John, was developed for road cars and sort of fit and forget with no bits that wear and need replacing,

    " The Suretrac falls into the TBD (torque biasing differential) category, which means technically its not a limited slip unit. Instead, it transfers torque to the wheel that has more load. However, it requires some load on both wheels in order to transfer the torque, otherwise a TBD will act as an open diff."

    Some clever design going on inside of it .

    A plate LSD can be set up to grab more or less and they do wear unlike the Suretrac

    just had a look at the Quaife LSD and it looks like a Torsen LSD with screw gears in side#

    https://shop.quaife.co.uk/nissan-240z-110mm-c-w-quaife-atb-helical-lsd-differential
     

    Attached Files:

    Woody928 likes this.
  2. franky

    franky
    Z Club Member

    I know on some hillclimb and track stuff people don't like the quaife if the car lifts a wheel or sits off track, just because of how it works.
     
  3. atomman

    atomman Active Forum User

    Should be 0.864 on a standard euro 5 speed from what I have read , but I'm running a 225/50/15 tyre so not as tall as your 195's which might be why .

    I have got a S13 box to go in when I get round to it and that has a 0.759 ratio 5th so should drop the revs a bit on the motorway.

    I've been using this calculator to get the info http://westfield-world.com/gtc.html
     
  4. atomman

    atomman Active Forum User

    [QUOTE="I do like the idea of the r160 lsd. [/QUOTE]

    That's whats in mine at the moment R160 clutch LSD 4.11 , its lighter, bolts straight in and no need to buy the conversion axles either so works out cheaper.
     
    franky likes this.
  5. franky

    franky
    Z Club Member

    That's whats in mine at the moment R160 clutch LSD 4.11 , its lighter, bolts straight in and no need to buy the conversion axles either so works out cheaper.[/QUOTE]

    What did you get yours out of?
     
  6. franky

    franky
    Z Club Member

    I based it on the .759, however left it at that for both, its effectively about 10mph between the two for rpm.
     
  7. atomman

    atomman Active Forum User

    It's from an early Subaru Impreza WRX STi Type RA, the two door one
     
  8. jonbills

    jonbills
    ZClub Administrator
    Staff Member

    johnymd likes this.
  9. SeanDezart

    SeanDezart
    Z Club Member
    Official Trader

    Dumb question but why no need to buy the conversion axels for a Subaru diff ?

    Secondly, ho wmuch torque are youi expecting to push through it please ?
     
  10. atomman

    atomman Active Forum User

    Last edited: Feb 3, 2019
  11. atomman

    atomman Active Forum User

    The Subaru R160's just need the Datsun inner shafts modifying , The R180's need conversion shafts .


    Torque ? Not sure how much my L29 is putting out yet , dyno booked for next month , but its already had a good bit of abuse and has been ok
     
  12. johnymd

    johnymd
    Z Club Member

    Could you enlighten me on what mods are required, or give me a price on doing it for me.........along with the 2 sets of disk spacers I’ll be needing soon.

    Thanks
     
  13. jonbills

    jonbills
    ZClub Administrator
    Staff Member

    Sorry, you're right. There's two kinds it seems. Neither are helical though. I think
     
  14. Woody928

    Woody928
    Z Club Member

    Thanks chaps, good to know. Sounds like I've got the lazy, easy going one for maintenance which is good for me. I must admit I just know it works and very well...

    Price wise I'd say that's a steal in the current market, I paid about £550 which was the going rate everywhere I looked last year!

    From your comments should I not be running LSD oil with the suretrac then? (everyday is a school day with these things)
     

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