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| OzECruisers General Discussions E/N/D vehicles General Discussion ONLY. NO TECH THREADS |
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29-11-2005, 10:11 PM
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#1 | ||
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[EBGLT]
Join Date: Sep 2005
Location: Cazza Dee
Posts: 4,829
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What do all these numbers mean with diff ratios? How do i change mine i need some more take off speed?
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29-11-2005, 10:13 PM
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#2 | ||
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FF.Com.Au Hardcore
Join Date: Nov 2005
Location: SA
Posts: 621
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the higher the number the quicker the take off, but you will have less top speed and less fuel economy, the number means how many times the axle turns to how many times the tailshaft (i think) turns, 3.23 axle turns to one tail shaft. =3.23:1 diff
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29-11-2005, 10:24 PM
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#3 | ||
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[EBGLT]
Join Date: Sep 2005
Location: Cazza Dee
Posts: 4,829
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Thats helpful thanks mate gathered it would use more fuel witht he higher diff ratio. How do i go about getting a higher diff ratio?
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29-11-2005, 10:26 PM
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#4 | ||
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FF.Com.Au Hardcore
Join Date: Nov 2005
Location: SA
Posts: 621
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i would go to a wreckers,
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29-11-2005, 10:34 PM
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#5 | ||
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[EBGLT]
Join Date: Sep 2005
Location: Cazza Dee
Posts: 4,829
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What do i do there just talk to them about what i want to do and just go from there?
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29-11-2005, 10:36 PM
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#6 | ||
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FF.Com.Au Hardcore
Join Date: Nov 2005
Location: SA
Posts: 621
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yeah.
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29-11-2005, 10:37 PM
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#7 | ||
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FF.Com.Au Hardcore
Join Date: Nov 2005
Location: SA
Posts: 621
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one more thing. you will have to get your speedo re-calibrated
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29-11-2005, 10:46 PM
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#8 | ||
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[EBGLT]
Join Date: Sep 2005
Location: Cazza Dee
Posts: 4,829
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oh ok why is that?
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29-11-2005, 10:49 PM
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#9 | ||
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FF.Com.Au Hardcore
Join Date: Nov 2005
Location: SA
Posts: 621
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well the different ratios mean the wheels will be spinning at a different rate to the trans, than what they were at factory.
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29-11-2005, 10:52 PM
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#10 | ||
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[EBGLT]
Join Date: Sep 2005
Location: Cazza Dee
Posts: 4,829
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Oh ok cool we can do that through a dyno tuner yeah?
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29-11-2005, 10:53 PM
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#11 | ||
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FF.Com.Au Hardcore
Join Date: Nov 2005
Location: SA
Posts: 621
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i dunno, probably
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29-11-2005, 11:04 PM
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#12 | ||
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[EBGLT]
Join Date: Sep 2005
Location: Cazza Dee
Posts: 4,829
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Where else then?
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29-11-2005, 11:06 PM
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#13 | ||
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Two > One
Join Date: Dec 2004
Location: Adelaide
Posts: 7,063
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You had it the wrong way round.
3.23:1 = the tailshaft turns 3.23times for one turn of the axle. But yes, numericaly higher diffs will help with take off (to an extent)
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1978 LTD - 408ci - 11.5@120.6mph - 2004 S4 - 4.2 - M6 - quattro - |
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29-11-2005, 11:10 PM
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#14 | ||
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Regular Member
Join Date: Oct 2005
Location: Mildura VIC.
Posts: 127
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I have 3.45:1 This seems to be a grate ratio for me. I have found it to give good fuel economy (9-10L per 100km on a trip @ 110-120) and good take off also (0-60mph=6 sec), with a V8 manual.
By the way, the higher the number, the lower the diff ratio. eg. 2.77:1 is a hight ratio. 4.45:1 is a low ratio. The changing the speedo can be done by a machanic by changing the "speedo drive" gear in the gearbox. not sure on a cost. |
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29-11-2005, 11:10 PM
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#15 | ||
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[EBGLT]
Join Date: Sep 2005
Location: Cazza Dee
Posts: 4,829
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Thanks mate!
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Diff Ratio
Linear Mode
