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BUZOOKA

az supporter

Joined: Sun Aug 30, 2009 11:30 pm
Posts: 2659
Location: hobart tasmania

Posted: Mon Apr 05, 2010 2:58 pm

hey fellas just after some info want to look at puting some lower ratios in my difs and wondering wat i can do i have nt diff centers in mine

so wat should i have my eye out for

cheers luke

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Scrawny

I live here!

Joined: Tue Jan 29, 2008 10:30 pm
Posts: 10528
Location: Brissie
Vehicle: Popemobile

Posted: Mon Apr 05, 2010 3:04 pm

So you currently have 3.9's?

BUZOOKA

az supporter

Joined: Sun Aug 30, 2009 11:30 pm
Posts: 2659
Location: hobart tasmania

Posted: Mon Apr 05, 2010 3:05 pm

umm yer i think that would be correct

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SuziBlu

Joined: Mon Sep 14, 2009 11:30 pm
Posts: 4268
Location: Eyre Peninsula

Posted: Mon Apr 05, 2010 3:27 pm

Vitara fronts, 5.12

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want33s

az supporter

Joined: Fri Nov 16, 2007 10:30 pm
Posts: 8134
Location: Sunshine Coast Qld

Posted: Mon Apr 05, 2010 3:30 pm

Various Vitaras will give shorter gearing...
4.6:1
4.8:1
5.12:1
Much easier to fit transfer gears before you start messing with diff ratios though.

BUZOOKA

az supporter

Joined: Sun Aug 30, 2009 11:30 pm
Posts: 2659
Location: hobart tasmania

Posted: Mon Apr 05, 2010 3:43 pm

ok cheers jas

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Red89

Joined: Tue Jan 12, 2010 10:30 pm
Posts: 2801
Location: Perth

Posted: Mon Apr 05, 2010 4:06 pm

Just a quick dumb question, do diff gears do anything to correct speedo error due to bigger tyres or do they simply make it worse still.

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want33s

az supporter

Joined: Fri Nov 16, 2007 10:30 pm
Posts: 8134
Location: Sunshine Coast Qld

Posted: Mon Apr 05, 2010 4:09 pm

Diff gears can correct a speedo... IF.... you pick the right ratio.

joeblow

Joined: Sat May 10, 2008 11:30 pm
Posts: 3273
Location: melbourne

Posted: Mon Apr 05, 2010 4:09 pm

Red89 wrote:

Just a quick dumb question, do diff gears do anything to correct speedo error due to bigger tyres or do they simply make it worse still.

diff gears do alot of other good things, but if you have a standard t case with 33's and fit 5.1 diffs your speedo will be well inside the 10% ADR compliance rule.

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SuziBlu

Joined: Mon Sep 14, 2009 11:30 pm
Posts: 4268
Location: Eyre Peninsula

Posted: Mon Apr 05, 2010 4:15 pm

I have no idea of what ratio I have in my suziblu, no idea of speed i was doing with the 31" tyres I put on her, So I checked with a GPS, I cannot tell the diff tween the speedo reading and the GPS, if there is a discrepancy, its that I may be a k over speed at 80k

No tacko so no idea of revs.

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Westie

az supporter

Joined: Tue Jul 04, 2006 11:30 pm
Posts: 1417
Location: Caloundra Sunshine

Posted: Mon Apr 05, 2010 6:31 pm

X90 has 4.3:1 ratio 5M

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Fatzook

az supporter

Joined: Sat Oct 27, 2007 11:30 pm
Posts: 14977
Location: The Hills
Vehicle: Vitara, NGV

Posted: Tue Apr 06, 2010 10:59 am

X-90 auto and imort SWB vit has 4.6:1.

This will allow you to run 32's, and 1 litre transfer with near stock speedo readings.

Pete

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