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Au I XR8 performance mods 

 

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hegbj001
 Post subject: Au I XR8 performance mods
Posted: Wed Aug 25, 2010 11:29 am 
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Ride: AU I XR8 Tickford Enhanced

Location: Adelaide
SA, Australia
Hi all,

I've just bought my brother in laws 1999 au I Tickford enhanced XR8 and as far as I kno these came out of the factory with 180kW?

What I want to know is what mods should I look at to bring up that power to match the series III XR8's which had 220kW?

Cheers
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EFFalcon
 Post subject: Re: Au I XR8 performance mods
Posted: Wed Aug 25, 2010 12:00 pm 
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simple bolt ons i'd suggest 1.7 roller rockers and a decent exhaust.
but if you want a good kick change the cam.

 

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Vic
 Post subject: Re: Au I XR8 performance mods
Posted: Wed Aug 25, 2010 4:44 pm 
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As John said above, change the cam and get a tune. You should get a pleasant increase in power.

 

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hegbj001
 Post subject: Re: Au I XR8 performance mods
Posted: Wed Aug 25, 2010 5:11 pm 
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Ride: AU I XR8 Tickford Enhanced

Location: Adelaide
SA, Australia
Ok cheers.

Also could someone please tell me what Tickford enhancement included for series I models?

It has a full body kit with a double spoiler and 17 inch 5 spoke tickford wheels
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EBXR8380
 Post subject: Re: Au I XR8 performance mods
Posted: Wed Aug 25, 2010 10:24 pm 
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Lower stiffer springs and shocks with stiffer bushes and sway bar..
Wider rims, tyres etc..

 

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nicskitz
 Post subject: Re: Au I XR8 performance mods
Posted: Tue Aug 31, 2010 12:44 pm 
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tickford didnt touch the insides of the motor except for a pair of 4into1 style headers with better flowing cats.

A uper to lower intake manifold spacer is also a good preformance mod on these, tops heat soak in the upper manifold

 

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MyXR8Ute
 Post subject: Re: Au I XR8 performance mods
Posted: Tue Aug 31, 2010 8:39 pm 
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Ride: AuII XR8 Ute

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Back when my Auii XR8 ute was still factory standard (185kw version) the best power for doller mod i did was fit the 1.72:1 street terra roller rockers. picked up 20rwhp (around 220>240 from memory)
changing from 3.08:1 or 3.23:1 up to the 3.45:1 or 3.73:1 will give it a better kick off the line too.
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WARMACHINE
 Post subject: Re: Au I XR8 performance mods
Posted: Fri Sep 03, 2010 6:32 pm 
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I would suggest 3.91 with tighter packed shims in the limited slip centre, 1.7 rr are a cheap upgrade and adding a phenolic spacer couldn't hurt...
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67RCE
 Post subject: Re: Au I XR8 performance mods
Posted: Fri Sep 03, 2010 7:00 pm 
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is it a manual or auto? My manual S1 XR8 went 14.7 @ 95mph with a 3 inch cat back, and combined with a mechanical locking centre (4wd systems Lokka) went 14.3@96.7mph. A decent exhaust and tune should see your XR8 a fair bit quicker, possibly a 13s car with a good launch.

 

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