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What Ratio Would my diff be? 

 

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 Post subject: What Ratio Would my diff be?
Posted: Thu Aug 13, 2009 8:15 pm 
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Hey guys,

Trying to work out what ratio my diff would be its factory ford open centre the user manual isn't very helpful saying basically it could be any of these ratios...

Its an ED Falcon 93 GLi factory 5 speed... would it be a 3.23? and if I went to a 3.45 would i see much difference in torque and any more revs at 100km/hr?

Thanks,
Tim

 

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 Post subject: Re: What Ratio Would my diff be?
Posted: Thu Aug 13, 2009 8:34 pm 
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Whats it rev at currently at 100kmhr?
If its 2k exact you have 3.23s. If it revs lower you'll have 3.08s.
3.45s will give you about 2200/2250 at 100kmhr.

 

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 Post subject: Re: What Ratio Would my diff be?
Posted: Thu Aug 13, 2009 8:48 pm 
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most ea mpi 5speeds were 2.92 not sure if this was still one of the ratios in ed's
i fited a 3.23 LSD and didnt notice a lot of dif the only thing is i lost the speed out of each gear.
from memory only Auto wagons-fairlanes came with 3.23 and XR's came with 3.45 unless it was optioned from ford
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 Post subject: Re: What Ratio Would my diff be?
Posted: Thu Aug 13, 2009 9:04 pm 
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Yeah its pretty much 2k at 100km/hr maybe 1900 to 1950 but around that mark for sure... However it did come from ford with 15's with 215/65 from memory and now has 17's with 235/45 or something like that...and they have a slightly larger circumference then the 15's...

Anyway was just curious as I have no idea and unless its an LSD they don't have the ratio written on them do they?

Thanks,
Tim

 

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93 Red ED 5spd Manual Build Thread

Performance: Complete AUII VCT Wiring & Power Train, Pacey Headers, 2.5" Exhaust, Exedy Clutch, DBA Rotors
Visuals: FG XR Wheel, XR Front, 17's, BA 5 Spd Shifter, BA Ghia Window Switches, NL Cluster
Tunes: 8" Pioneer Sub, JBL Speakers, Clarion Double DIN Headunit

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 Post subject: Re: What Ratio Would my diff be?
Posted: Thu Aug 13, 2009 9:21 pm 
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Ratio should be on it regardless.

 

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 Post subject: Re: What Ratio Would my diff be?
Posted: Thu Aug 13, 2009 9:25 pm 
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IIRC ED manuals were 3.27

 

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 Post subject: Re: What Ratio Would my diff be?
Posted: Thu Aug 13, 2009 9:44 pm 
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IIRC?

so it'd deffinitely be 3.27 or your just offering suggestions? :S

oh would it? where is the ratio... Somewhere you can see while its still in the car?

Thanks,
Tim

 

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93 Red ED 5spd Manual Build Thread

Performance: Complete AUII VCT Wiring & Power Train, Pacey Headers, 2.5" Exhaust, Exedy Clutch, DBA Rotors
Visuals: FG XR Wheel, XR Front, 17's, BA 5 Spd Shifter, BA Ghia Window Switches, NL Cluster
Tunes: 8" Pioneer Sub, JBL Speakers, Clarion Double DIN Headunit

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 Post subject: Re: What Ratio Would my diff be?
Posted: Thu Aug 13, 2009 9:48 pm 
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Lolz, IIRC = if i recall correctly.
Should be a sticker on teh diff, to the right? of center. either was you should be able to just stick your head under and see it.

 

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 Post subject: Re: What Ratio Would my diff be?
Posted: Thu Aug 13, 2009 9:58 pm 
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oh haha cheers... would've never guessed that acronym...

I'll have to have a look next time I'm under there and see what I can't find...

Cheers...

 

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93 Red ED 5spd Manual Build Thread

Performance: Complete AUII VCT Wiring & Power Train, Pacey Headers, 2.5" Exhaust, Exedy Clutch, DBA Rotors
Visuals: FG XR Wheel, XR Front, 17's, BA 5 Spd Shifter, BA Ghia Window Switches, NL Cluster
Tunes: 8" Pioneer Sub, JBL Speakers, Clarion Double DIN Headunit

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 Post subject: Re: What Ratio Would my diff be?
Posted: Thu Aug 13, 2009 10:12 pm 
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if there is no sticker it will be on a small tag on one of the cover bolts..
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 Post subject: Re: What Ratio Would my diff be?
Posted: Thu Aug 13, 2009 10:34 pm 
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timmytimtim, look for something like this

 

 

Attachments:
3.23 LSD EFII.JPG
3.23 LSD EFII.JPG [ 79.81 KiB | Viewed 48 times ]
3.23 LSD EFII (1).JPG
3.23 LSD EFII (1).JPG [ 70.97 KiB | Viewed 46 times ]

 

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 Post subject: Re: What Ratio Would my diff be?
Posted: Fri Aug 14, 2009 9:18 am 
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yeah no mine doesn't have a tag not an LSD...

That sticker has a ratio on it or that code is the ratio??? :S

 

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93 Red ED 5spd Manual Build Thread

Performance: Complete AUII VCT Wiring & Power Train, Pacey Headers, 2.5" Exhaust, Exedy Clutch, DBA Rotors
Visuals: FG XR Wheel, XR Front, 17's, BA 5 Spd Shifter, BA Ghia Window Switches, NL Cluster
Tunes: 8" Pioneer Sub, JBL Speakers, Clarion Double DIN Headunit

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 Post subject: Re: What Ratio Would my diff be?
Posted: Fri Aug 14, 2009 10:03 am 
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timmytimtim, the ratio is in small print at the bottom right hand corner of the sticker. I took pics of the tag & labels cause I CBF getting right under the wagon. Then I just zoomed into the pic back on the pc. But I'm lazy.

 

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 Post subject: Re: What Ratio Would my diff be?
Posted: Fri Aug 14, 2009 10:08 am 
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I know auto ED's where nearly always 3.08:1 but Im not sure about manual ones, it will be a 3.08:1 or a 3.27:1

laticia.

 

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 Post subject: Re: What Ratio Would my diff be?
Posted: Fri Aug 14, 2009 10:08 am 
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Ride: ED Falcon

Power: 133 rwkw

Location: Leeton
NSW, Australia

oh I can see it now...

Sweet I'll have a look under my car and see what I can't find out...

Thanking you...

 

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93 Red ED 5spd Manual Build Thread

Performance: Complete AUII VCT Wiring & Power Train, Pacey Headers, 2.5" Exhaust, Exedy Clutch, DBA Rotors
Visuals: FG XR Wheel, XR Front, 17's, BA 5 Spd Shifter, BA Ghia Window Switches, NL Cluster
Tunes: 8" Pioneer Sub, JBL Speakers, Clarion Double DIN Headunit

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