Safari question





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Thread: Safari question

  1. #1
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    Default Safari question

    Hi there

    I have a question on behalf of a friend for the Safari experts out there.

    He has an old early 80's Safari station wagon, had the L28 motor in it, but converted it a while back to a LD28. He is very happy with the diesel.

    When cruising at highway speeds the Safari revs too high, this of course because of the gear ratios that differ between the petrol and diesel. What can he do to fix this, and who in Pta / Jhb would be able to do the fix? Change a diff ratio? Try and get a LD28 gearbox? And a fix that is not going to cost a fortune.

    Cheers
    "The whole problem with the world is that fools and fanatics are always so certain of themselves, but wiser people so full of doubts" : Bertrand Russell

    2014 Nissan Navara 2.5 4x2
    1995 Nissan Sani 3.0 V6 4x4

  2. #2
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    Default Re: Safari question

    Change the tires to 33's . Powertrac has very affordable road and mud tyres that last many miles.
    Perfect for a Safari. The middle 2 in the pic.
    There's only 3 reasons to stand up : to get the remote , to go to the bathroom or because you're the Real Slim Shady.

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  4. #3
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    Default Re: Safari question

    the diesel ratio axles are VERY scarce, but there is a guy out Hammanskraal way that might have some, Reenen has his contact details

    as for fitting them: either swop the diffs between the axle housings, or swop the axles as a complete unit

    As far as I recall, the diesel diff ratio is 4.11. The petrol is 4.625. But I'm sure somebody will correct me. That's a 12% difference.

    He'll get the same effect if he simply goes from 31" tyres to 35" tyres. And it will probably be cheaper.
    2012 Jeep Sahara Unlimited 3.6 V6
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  6. #4
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    Default Re: Safari question

    The Safari have a divorced gearbox transfer case setup. 5 speed gearbox the best solution.
    It is not what you buy its what you build.

  7. #5
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    Default Re: Safari question

    Quote Originally Posted by grips View Post
    The Safari have a divorced gearbox transfer case setup. 5 speed gearbox the best solution.
    If you want to do that, please refer to the Sticky:

    https://www.4x4community.co.za/forum...atibility-Info
    2012 Jeep Sahara Unlimited 3.6 V6
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  8. #6
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    Default Re: Safari question

    Petrol het 4.875 en diesel het 4.625 ratio.

    Sit 33 bande op.

    Om n 5 spoed box agter die ld28 in te kry, sal jy die t/c agtertoe moet skuif, en props verander, want die safar se gearbox is baie kort.

    Diesel en petrol Gearboxe is identies met n 1:1 4de rat, so dit sal nie help om n safari diesel bakkie se boks in te sit.
    Vrywaring: Niks wat ek hier kwyt raak moet hoegenaamd as feite beskou word nie.

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  10. #7
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    Default Re: Safari question

    My Diesel Hardloop dan met 4.88 diff gears, maar met 5 spoed ratkas. Op 33's kry ek klaar skaars 5de rat gebruik, en ek weet met 35's gaan ek net nooit 5de kan gebruik nie. Top spoed het ek al 150 gekry, maar dan skree daai 2.7 op a groot afdraande.

    Nou net op my speadsheet gekyk.
    120km/h met 4 spoed ratkas (1.1 vierde rat), en 4.88 diff en 33's, sit jou revs op 3640. Dit is maar bietjie hoog om te dink jy gaan heeldag 120 kan ry.
    4.88 ratte op 35's gaan hy af kom na 3436RPM.
    4.625 ratte op 33's gee jou 3515RPM op 120.
    4.625 ratte op 35's gee jou 3312RPM
    4.1 ratte op 33's gee jou 3115RPM.
    4.1 ratte op 35's gee jou 2935RPM.

    Ek gaan nou nie die top spoed teen 4000RPM gaan uit werk nie. Ek dink dis meer belangrik om gemaklikke RPM te kry teen gemaklikke speod vir die ou Safari van so 100Km/h-120Km/h.
    David/Hillbilly - 1997 SFA Nissan Sani 2,7 TD - 5" lift on 33" tires - Dual Transfer with 4.1 gears

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  11. #8
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    Default Re: Safari question

    Quote Originally Posted by Reenen View Post
    Petrol het 4.875 en diesel het 4.625 ratio.

    Sit 33 bande op.

    Om n 5 spoed box agter die ld28 in te kry, sal jy die t/c agtertoe moet skuif, en props verander, want die safar se gearbox is baie kort.

    Diesel en petrol Gearboxe is identies met n 1:1 4de rat, so dit sal nie help om n safari diesel bakkie se boks in te sit.
    OK, so die verskil tussen petrol diff en diesel diff is 6%. Nie genoeg om 'n verskil te maak nie.

    Like I said: chuck away the 31" tyres and run 35" tyres. PROBLEM SOLVED.
    2012 Jeep Sahara Unlimited 3.6 V6
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  12. #9
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    Default Re: Safari question

    Sonder redelikke lift, en fenders cut tot max(agter deur arch en fuel filler is in pad) gaan jy sukkel met 35. Probeer 33 bande.
    Vrywaring: Niks wat ek hier kwyt raak moet hoegenaamd as feite beskou word nie.

  13. #10
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    Default Re: Safari question

    Quote Originally Posted by Reenen View Post
    Sonder redelikke lift, en fenders cut tot max(agter deur arch en fuel filler is in pad) gaan jy sukkel met 35. Probeer 33 bande.
    ag daar is altyd 'n issue met my idees

    oh well

    33" dan
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  14. #11
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    Default Re: Safari question

    Kry beter idees...
    Vrywaring: Niks wat ek hier kwyt raak moet hoegenaamd as feite beskou word nie.

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  16. #12
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    Default Re: Safari question

    Sorry. Soms neem my krities annalitiese khoi san bloed oor. Ek het geen humor sin nie.
    Vrywaring: Niks wat ek hier kwyt raak moet hoegenaamd as feite beskou word nie.

  17. #13
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    Default Re: Safari question

    Quote Originally Posted by Reenen View Post
    Sorry. Soms neem my krities annalitiese khoi san bloed oor. Ek het geen humor sin nie.
    nee jy is reg
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  18. #14
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    Post Re: Safari question

    With 67kW and 170Nm in a heavy 4x4 like the Safari you does not have much left to power big tyres like 33`s.
    I have spend many hours behind ratio calculators in my builds. You only start to make significant ratio improvement by fitting 35`s.
    Unfortunately you does not have the power or torque to turn 35`s even with the current ratio`s.

    There are many options on the table. First would be the diff ratio change to mach the LD28. According to posters here they are impossible to find.
    What is next. Seems that Nissan 5 speed boxes will not fit. You get some very compact 5 speed boxes like the H55 Toyota from the Dyna. Adding a 5 speed ratio to the underpowered LD28 might be a waste in the end. You can turbo the LD28 and then add a 5 speed box.
    All in all you will end up spending lots of money on upgrades that can proof futile in the end.
    Depending on maney you are willing to spend.
    I think your cheapest option will be to keep the Safari as is dump the LD28 and get a L28 petrol engine for which your current vehicle were designed in the first place.
    It is not what you buy its what you build.

  19. #15
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    Default Re: Safari question

    Grips stem saam

    Maar die ld28 was actually n engine vir hom, hy was net nie ontwerp om vinnig te wees.

    Wat is die omtrek van daai 15 split rim biscuits waarmee die bakkie uitgekom het?

    Die cabol 5 spoed pas ook net so
    Vrywaring: Niks wat ek hier kwyt raak moet hoegenaamd as feite beskou word nie.

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  21. #16
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    Default Re: Safari question

    7.5-16 was die standaard grootte. Dit is omtrent 32. So hou by 32-33 bande.
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  22. #17
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    Default Re: Safari question

    Ek is nou besig met beplanning om aan my stock standard safari te werk.
    Voorlopig, ander 4x4 5 spoed gearbox, wat transfercase saam met gearbox aan een is (pajero 3.5).
    Ander diff ratio (van 4.88 na 7.56).
    42 bande, 21 lift
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  23. #18
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    Default Re: Safari question

    Quote Originally Posted by Reenen View Post
    Ek is nou besig met beplanning om aan my stock standard safari te werk.
    Voorlopig, ander 4x4 5 spoed gearbox, wat transfercase saam met gearbox aan een is (pajero 3.5).
    Ander diff ratio (van 4.88 na 7.56).
    42 bande, 21 lift
    Dan sal jy Danas moet insit? Paj transfer is LHS drop?
    2012 Jeep Sahara Unlimited 3.6 V6
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  24. #19
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    Default Re: Safari question

    Mog portals
    Vrywaring: Niks wat ek hier kwyt raak moet hoegenaamd as feite beskou word nie.

  25. #20
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    Default Re: Safari question

    This post is going south again with people not reading the man's plight. He has an old Patrol worth 20 to 40k. He wants to drop revs and it.must not cost him a fortune.
    Fit bigger tyres. Period.
    Not a ratio change
    Not a Gearbox swop.
    Not a Dynorun with a Nira ECU and Garret turbo.
    Just a set of second hand 33's with 50% grip left of R4000.
    There's only 3 reasons to stand up : to get the remote , to go to the bathroom or because you're the Real Slim Shady.

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