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How strong is a EF and AU XR8 diff 

 

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 Post subject: How strong is a EF and AU XR8 diff
Posted: Sat Nov 10, 2007 2:18 pm 
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Hi All,

I need to find out how strong EF and AU XR8 diff's are???

I heared they handel up to 400rwhp???

 

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Posted: Sat Nov 10, 2007 2:23 pm 
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It can handle that, but won't handle it if you punish it. As long are you're sensible and don't have a hard clutch she'll be right.

 

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Posted: Sat Nov 10, 2007 2:43 pm 
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Ride: EFII 5.8 NOS TerroristGhia

Power: 274 rwkw

Location: Sydney Australia
NSW, Australia

Mine is beefed up with 3.9 gears, and a mini spool, the builder rates it to 400 rwkw, so you shouldnt have a prob if you treat it nice
Brett

 

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Posted: Sat Nov 10, 2007 2:48 pm 
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yeh there pretty tough. a good condition 1 should handle 400rwhp for ages if not punished to hard.

 

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 Post subject: diff
Posted: Sat Nov 10, 2007 3:10 pm 
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Well mine has been rebuilt and all but im looking into changing my putting a AU XR8 diff in the rear so i get rid of my 35mm hub adaptors and didnt want to spend the money then have it break.

Do you think with if the car was slicked up at the track it would break with a hard launch?

 

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 Post subject: diff
Posted: Sat Nov 10, 2007 3:15 pm 
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Hey Brett,

Who is your diff rebuilder?

Also i saw u at Mobile servo lastnite at boronia rd, if you live out that way we should meet up and go for a little cruz.

 

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Posted: Sun Nov 11, 2007 12:13 am 
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Power: 274 rwkw

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Joe got the diff done, so ask him.
I will be in for next weeks cruise at KK Liverpool, see you then
Brett

 

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Posted: Sun Nov 11, 2007 12:24 am 
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its all depends on wear and tear, and daily its life style.
my au had the factory option 3.45lsd i gave it a good punishment everyday. lasted me about 6 months. its simple really treat it good and its shall last

 

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 Post subject: diff
Posted: Sun Nov 11, 2007 1:07 am 
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Where and whens the cruz???

 

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 Post subject: Re: How strong is a EF and AU XR8 diff
Posted: Mon Nov 12, 2007 7:22 pm 
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MICKYYYY wrote:
Hi All,

I need to find out how strong EF and AU XR8 diff's are???

I heared they handel up to 400rwhp???


EF and AU XR8 diffs are different. The EF is a live axle, and the XR8 AU's had IRS as standard.

 

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 Post subject: diff
Posted: Mon Nov 12, 2007 10:02 pm 
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Dont some come live axcel?

 

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Posted: Mon Nov 12, 2007 10:55 pm 
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i know my el diff if given s**t it doesnt like it.
ive blown it twice in a year.
but i agree if you get it spooled and bring the ratio up to around 3.9 or higher it will last a lot longer.

 

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 Post subject: Re: diff
Posted: Tue Nov 13, 2007 12:16 am 
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MICKYYYY wrote:
Dont some come live axcel?


The XR8 AU's came with IRS with ABS standard fittment, only. The XR6 AU without VCT had live axles, and with VCT, plus the Fairmonts and Fairlanes fitted with VCT also had IRS. You could order an AU sedan, a Forte with IRS. It was an option, and along with that came ABS.

 

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Posted: Wed Nov 14, 2007 2:37 pm 
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Whats better about the XR8 diff? i didnt think there was a difference in the EF EL
6 cylinder and V8 diffs??
Except the watts linkage mount on the XRs

 

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Posted: Wed Nov 14, 2007 10:07 pm 
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Power: 161 rwkw

Location: Rockhampton
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wholohan123 wrote:
Whats better about the XR8 diff? i didnt think there was a difference in the EF EL
6 cylinder and V8 diffs??
Except the watts linkage mount on the XRs


I think, not sure, but might have a 4 pinion centre with LSD.

 

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