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au 4.0 verse au xr6 motor (yes i looked through the sticky 

 

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 Post subject: au 4.0 verse au xr6 motor (yes i looked through the sticky
Posted: Mon Aug 18, 2008 3:12 pm 
Oompa Loompa
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im after an AU series 4.0 motor for a project and was wondering what the difference is between the 2, if its on things like better balanced and different pistons it won't bother me as that sort of stuff can be changed for full rebuild. i wont have to worry about the manifolds computer and injection setup as it will all be removed for straight gas turbo.
But if any one knows the differences could they let me know plz :)
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Posted: Mon Aug 18, 2008 7:10 pm 
Getting Side Ways
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the head has a T on the front better cam, better valve springs and larger exhaust port..

and 157 stock

164 xr6

 

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Posted: Mon Aug 18, 2008 9:30 pm 
Oompa Loompa
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so basicly the only changes is larger exhaust port.
do you know if the chambers are the same cc's
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Posted: Mon Aug 18, 2008 10:09 pm 
Fordmods Junkie
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different cam as well
and ecu to match

 

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Posted: Mon Aug 18, 2008 10:14 pm 
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Ride: ford falcon au3 xr8

Location: a shit suburb in sydney
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In the au series the std valves and valve springs are the same as xr6 tickford but in the the tickford xr6 exhaust ports are aparently alittle larger.. i cant really tell the difference by looking at the ports lol.
the cam is different and the fuel reg also.

actually the std au valves are the same diameter as the ef/el tickford ones.
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Posted: Mon Aug 18, 2008 11:06 pm 
Stock as a Rock
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Didn't the xr6's have VCT, with around 172kw?


Edit: there was both a VCT and a non-VCT xr6 released.

Last edited by timmay_73 on Mon Aug 18, 2008 11:38 pm, edited 1 time in total.

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Posted: Mon Aug 18, 2008 11:10 pm 
Getting Side Ways
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some do, some dont.
Dunno what ones, I think it was optional or AU3s or something. IDGAF, theyre only aus :p

 

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Posted: Tue Aug 19, 2008 10:37 pm 
Parts Gopher
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In AU3 utes (dont know about sedans) the xr6 had VCT the XLS had the series 2 xr6 motor and the xl had the stock motor. I used to own an AU3 xls ute that I purchased new and it had a non VCT tickford motor in it from the factory.

 

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