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| The Pub For General Automotive Related Talk |
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28-08-2012, 08:21 PM
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#1 | ||
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Regular Member
Join Date: Aug 2012
Posts: 80
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hey guys does anyone know how much differently my xr6 manual will go if i put a 3.08 ratio diff out of an auto and put it into my xr6 manual which had a 3.45? wil i notice a dramatic difference at all or will it be roughly the same ? any infomation would be great help! thanks
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28-08-2012, 08:22 PM
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#2 | ||
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Thailand Specials
Join Date: Aug 2009
Location: Centrefold Lounge
Posts: 49,820
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Will rev lower and will feel "doughy".
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28-08-2012, 08:25 PM
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#3 | ||
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Regular Member
Join Date: Aug 2012
Posts: 80
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so basically it wont feel like an xr6 ?
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28-08-2012, 08:26 PM
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#4 | ||
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FF.Com.Au Hardcore
Join Date: Feb 2010
Location: Sun City, North Australis
Posts: 4,274
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Why do you want to swap diff ratios? or diffs for that matter
__________________
You've seen it, you've heard it and your still asking questions?? Don't write off the Goose until you see the box going into the hole.... |
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28-08-2012, 08:33 PM
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#5 | ||
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Regular Member
Join Date: Aug 2012
Posts: 80
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my diffs destroyed and about to give out and i dont have money for the 3.45 diff with abs because there a ridiculous amount for a s/h one and i dont have that much money now so i was going to change it for the auto diff because there cheap and then when i get the money get a new lsd 3.45
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28-08-2012, 08:42 PM
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#6 | ||
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MY2010 SV6 SIDI -Black-
Join Date: Nov 2009
Location: Townsville
Posts: 640
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beggars cant be choosers as the saying goes
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28-08-2012, 08:47 PM
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#7 | ||
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Regular Member
Join Date: Aug 2012
Posts: 80
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will i want to shoot my self after i change it though??
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28-08-2012, 09:40 PM
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#8 | ||
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FF.Com.Au Hardcore
Join Date: Dec 2004
Location: Canberra Region
Posts: 9,056
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Being manual it probably wont be that big of a deal. Fuel economy should improve a bit I would think.
__________________
2016 FGX XR8 Sprint, 6speed manual, Kinetic Blue #170 2004 BA wagon RTV project. 1998 EL XR8, Auto, Hot Chilli Red 1993 ED XR6, 5speed, Polynesian Green. 1 of 329. Retired 1968 XT Falcon 500 wagon, 3 on the tree, 3.6L. Patina project. |
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28-08-2012, 09:53 PM
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#9 | ||
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MY2010 SV6 SIDI -Black-
Join Date: Nov 2009
Location: Townsville
Posts: 640
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it wont be too big of a deal, but ill bet fuel eco will get worse marginally, as the car will labour more. it wouldnt be much tho. thats assuming city driving.
put it on the highway it will probably improve fuel eco. Ice |
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28-08-2012, 11:00 PM
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#10 | ||
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Just slidin'
Join Date: Sep 2005
Location: Brisvegas
Posts: 7,791
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Car wont be as fun to drive, but it wont have any detrimental effects on the car till you can save up for a new one.
__________________
MD Mondeo - For the family
NP Pajero - For the adventure |
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28-08-2012, 11:17 PM
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#11 | ||
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FF.Com.Au Hardcore
Join Date: Feb 2005
Location: Melb north
Posts: 12,025
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my maths is pretty bad, but if i`m not mistaken it means your gearing will be about 12% taller(approximately) someone correct me if i`m wrong, speedo might be reading the actual speed as slower but be faster ???.
my xr6 reads 100 kph ,actual is 94 kph i reckon yours might read 94 and actual be 106 ?? , if you go ahead with it you need to be careful until you find out. |
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29-08-2012, 07:33 AM
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#12 | ||
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Regular Member
Join Date: Sep 2011
Posts: 89
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I know this is not exactly the same scenario but here it goes. In the previous car which was an auto VE SSV commodore the popular mod was to swap the 3.09 diff for a 3.45 one out of a manual. I did it and the take off from the line was amazing. So for you going the other way yes when cruising it would rev lower but I'm assuming it's going to take more revs to get it off the line and need to drop back gears when accelerating from a rolling start.
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29-08-2012, 08:34 AM
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#13 | ||
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Regular Member
Join Date: Sep 2011
Posts: 89
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Correction to my post above. The auto VE SSV's have a 2.92 diff ratio not 3.09.
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auto diff in manual falcon?? need help please!
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