Jimny gearing for 33+ tyres

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stimpy
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Re: Jimny gearing for 33+ tyres

Post by stimpy » Thu Mar 09, 2017 7:02 pm

ScottieJ wrote:Some food for thought.

Presuming that your jimny has 3.909 diffs at the moment and the Tbox is 1.32 in hi and 2.145 lo (i don't know what year, engine it is so that's a guess??)

As stock they run 205/70 tyres so 26" tall.

This means stock is
hi 5th at 4000rpm= 59.9mph
lo 5th at 4000rpm= 36.9mph

With a true 33" tyre, a 4.16:1 tbox and 4.3 diffs.
hi 5th 4000rpm= 57.8mph
lo 5th 4000rpm= 21.9mph

33s, 4.16:1 tbox with 4.090 diffs.
hi 5th 4000rpm= 60.7mph
lo 5th 4000rpm= 23.1mph

33s, 5.1:1 with 3.909 diffs
hi 5th 4000rpm=58.9mph
lo 5th 4000rpm= 19.7mph

33s, 6:1 with 3.909 diffs
hi 5th 4000rpm=57.7mph
lo 5th 4000rpm= 16.7mph

So There's not really much in it at all. I actually think a 4.16 box and 4.3 diffs would be the best option, it's actually lower in low than my sj.
Thanks for doing the maths Scottie and yes i have thought about this and had some txts with Matt (who has diffs some for sale!).. The trouble is 2 fold; firstly i would still need to get a 4.16 box and buy the diffs - which will also be more expensive than a 5:1 or above, and secondly i am really short on time these days so swapping a box is one thing but changing diffs another....

And if i had the time i would be building my ultimate SJ!

But yes it is an option...

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Anton
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Re: Jimny gearing for 33+ tyres

Post by Anton » Fri Mar 10, 2017 5:23 pm

stimpy wrote:Doesn't look like a great joint to be honest....
Huh???

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ROBBIE
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Re: Jimny gearing for 33+ tyres

Post by ROBBIE » Fri Mar 10, 2017 7:08 pm

Anton wrote:
stimpy wrote:Doesn't look like a great joint to be honest....
Huh???

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Roach looks a bit long
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Jimny 1.6 not as good as an SJ but still good

stimpy
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Re: Jimny gearing for 33+ tyres

Post by stimpy » Fri Mar 10, 2017 7:45 pm

ROBBIE wrote:
Anton wrote:
stimpy wrote:Doesn't look like a great joint to be honest....
Huh???

Image
Roach looks a bit long
Would still probably do....

You bloody stoners!

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Re: Jimny gearing for 33+ tyres

Post by twiss » Tue Mar 14, 2017 10:53 pm

That's mostly just me to be honest :P
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mike harris
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Re: Jimny gearing for 33+ tyres

Post by mike harris » Wed Mar 15, 2017 7:18 am

Sorry did you say you spoke to rob Storr ?!

stimpy
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Re: Jimny gearing for 33+ tyres

Post by stimpy » Wed Mar 15, 2017 11:31 pm

mike harris wrote:Sorry did you say you spoke to rob Storr ?!
Haha! OH YES!!! He answered his phone and some emails!!! I was shocked to be honest...

He's always so useful, full of information and friendly when you can get hold of him. Just a shame he used to struggle to get stuff out....

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