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AU fairmont IRS setup into ED falcon 

 

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 Post subject: AU fairmont IRS setup into ED falcon
Posted: Fri Jun 10, 2005 11:39 pm 
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what would be involved in doing such a thing?

 

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Posted: Sat Jun 11, 2005 2:46 am 
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lots of work!

not worth the effort the IRS is over 200kg heavier than the live axle diff in the ED

 

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Posted: Sat Jun 11, 2005 4:17 am 
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it is s**t tyre wear is worse and you can not do burnouts as easy

if you are going to corner at 200 km then i would put it in otherwise its not worth it

 

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Posted: Sat Jun 11, 2005 10:12 pm 
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{USERNAME} wrote:
it is s**t tyre wear is worse and you can not do burnouts as easy

if you are going to corner at 200 km then i would put it in otherwise its not worth it


I think yo may be talking about commodore IRS diffs there champ, and I guess if burnouts are your thing, you might as well just run a solid piece of pipe instead of rear shock absorbers. The IRS in the AU's is bloody good, and if you were that worried about the weight, you would fab some alloy upper and lower arms, and get the weight down.
I believe its pretty much a bolt in conversion though, and seeing that the AU's were available with IRS as an option, and the floor pans didnt change that much from XE-AU in the rear, my guess is that it would not be that tough a conversion.

Good luck.
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Posted: Sat Jun 11, 2005 11:02 pm 
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{USERNAME} wrote:
lots of work!


Thats all i needed to hear, the IRS setup sure looks heavy compared to the live axle setup so 200KG would seem right, i think ill just spend my $$$ on a reco LSD diff.

Thanks for the input

 

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Posted: Sun Jun 12, 2005 8:59 am 
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200kg heavier??!?

fuch me!

Is this actual figures or "it looks 200kg heavier" figures?

Anyone got a picture of it?
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Posted: Sun Jun 12, 2005 10:15 am 
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it has been done, someone on this site did it to their car or did it for someone else.
I was informed by 2 ford dealers that the au's irs is prone to clunks.

 

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Posted: Sun Jun 12, 2005 8:43 pm 
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{USERNAME} wrote:
.
I believe its pretty much a bolt in conversion though, and seeing that the AU's were available with IRS as an option, and the floor pans didnt change that much from XE-AU in the rear, my guess is that it would not be that tough a conversion.

Good luck.


mm thats a damn good point!

 

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Posted: Sun Jun 12, 2005 8:45 pm 
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{USERNAME} wrote:
200kg heavier??!?

fuch me!

Is this actual figures or "it looks 200kg heavier" figures?

Anyone got a picture of it?

not sure on teh actual weight

but to back this up
the Xr6 vct 172kw has irs and IS SLOWER tan teh 164kw XR6hp non vct withe the live axle

 

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Posted: Tue Jun 14, 2005 1:06 am 
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Difference between AU XR6HP and VCT is 130kg.
Some of that could also be attributed to 16in vs 17in wheels.

I heard all you need to do for the IRS conversion is to weld in in two brackets?

 

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Posted: Tue Jun 14, 2005 2:09 am 
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{USERNAME} wrote:
Difference between AU XR6HP and VCT is 130kg.
Some of that could also be attributed to 16in vs 17in wheels.

I heard all you need to do for the IRS conversion is to weld in in two brackets?


that all 130kg?
F**k and the extar 8kw aint enough to overcome it hahah thats funny!

 

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Posted: Tue Jun 14, 2005 2:17 am 
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the way the IRS behaves as opposed to the live axle would have an effect on acceleration times, wether it'd be a positive or negative effect depends on the geometry of the suspension

 

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Posted: Tue Jun 14, 2005 3:12 am 
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130kg would be approx .3secs over the 1/4mile (or about 3 car lengths)
, so I doubt 8kw would be enough to overcome that.

 

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