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26-10-2009, 10:44 PM
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Donating Member
 Join Date: Aug 2006
Posts: 5,142
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As the title suggests, can an AU3 xr8 220 get a more aggressive camshaft without bumping up the max RPM? Or is it pretty much on the limit already? Be interesting to know if anymore power can be squeezed out of this thing....
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26-10-2009, 10:48 PM
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Now Fordless
Join Date: Aug 2005
Location: Fremantle, WA
Posts: 3,611
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I too would be interested in this question.
Any other cams for the standard 220 heads and 1.7 rockers. Apparently the one in there is very mild. |
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27-10-2009, 01:17 PM
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#3 | ||
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The Destroyer
Join Date: Jun 2007
Location: Gold Coast
Posts: 2,261
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kw increase will be minimal however changing the cam can dramaticaly improve torque curves. mine is nearly flat from 1800rpm to 5500rpm.
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Toy- Blown XR8 Ute. Black on black "Front-drive cars are for children" |
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27-10-2009, 08:37 PM
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#4 | |||
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Donating Member
Join Date: Aug 2006
Posts: 5,142
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Quote:
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02-11-2009, 10:29 AM
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The Destroyer
Join Date: Jun 2007
Location: Gold Coast
Posts: 2,261
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sorry for the delay had to look it up
http://www.trickflow.com/partdetail....+&autoview=sku ^^cam im running^^ will cause break power assist issues with a a std stalled auto needs a 2700+ stallie or vaccum tank. works fine with a manual.
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Toy- Blown XR8 Ute. Black on black "Front-drive cars are for children" |
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02-11-2009, 09:31 PM
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#6 | |||
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Donating Member
Join Date: Aug 2006
Posts: 5,142
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Quote:
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02-11-2009, 11:30 PM
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Cat be Still !!!
Join Date: Oct 2007
Location: Perth. WA
Posts: 1,672
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Piston to valve clearance will be line ball if you run your std 1.72 rockers.
Also would pay to upgrade valve springs, Have a look on Trickflow website as i have heard they do a good spring package for ford cast iron heads. |
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03-11-2009, 04:38 PM
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#8 | ||
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The Destroyer
Join Date: Jun 2007
Location: Gold Coast
Posts: 2,261
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I'm using 1.6 rockers. Pushrod length will change also.
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Toy- Blown XR8 Ute. Black on black "Front-drive cars are for children" |
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03-11-2009, 05:00 PM
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#9 | |||
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Back to Le Frenchy
Join Date: Feb 2005
Location: Back home.....
Posts: 13,346
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Any cam will require a valve spring change. The stock ones aren't even up to the job in stock form and are a known issue on the 220's.
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Quote:
07 Renault Sport Megane F1 Team R26 #1397
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03-11-2009, 09:22 PM
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#10 | |||
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Donating Member
Join Date: Aug 2006
Posts: 5,142
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Quote:
That's true. But im happy RR's dont change. Anyone care to elaborate on pushrod changes? as in what size do I need? Ill get a vac. tank instead of new stall. Provided the cam's operating range is within the stall of course. I am mighty tempted to change my diff gears to 3.45 too. As ive driven an EL XR8 (185kw) and that was a hoot to take off in.  :
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03-11-2009, 10:36 PM
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#11 | ||
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too many fords
Join Date: Jun 2005
Location: Berwick, Vic
Posts: 897
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If you've got an AU then they already are 3.45
__________________
Daily driver 1: [COLOR=Indigo] 2010 FG XR6 Turbo 50th Anniversary, BPR CAI, Plazmaman turbo pipe. Daily driver 2: Nissan gq patrol Project 1: XP ute, 351W, c4, 9inch Project 2: XBGS sedan, sunburnt orange and vinyl, original 4spd, 302C. |
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03-11-2009, 10:45 PM
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#12 | |||
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Donating Member
Join Date: Aug 2006
Posts: 5,142
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Quote:
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04-11-2009, 06:08 AM
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#13 | ||||
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Back to Le Frenchy
Join Date: Feb 2005
Location: Back home.....
Posts: 13,346
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Quote:
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Quote:
07 Renault Sport Megane F1 Team R26 #1397
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04-11-2009, 07:58 AM
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#14 | |||
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too many fords
Join Date: Jun 2005
Location: Berwick, Vic
Posts: 897
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Quote:
I've owned a series 2 and it had 3.45's. My parents have also owned a series 2 Xr8 and it had 3.45's as well.
__________________
Daily driver 1: [COLOR=Indigo] 2010 FG XR6 Turbo 50th Anniversary, BPR CAI, Plazmaman turbo pipe. Daily driver 2: Nissan gq patrol Project 1: XP ute, 351W, c4, 9inch Project 2: XBGS sedan, sunburnt orange and vinyl, original 4spd, 302C. |
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04-11-2009, 07:07 PM
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#15 | ||
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Donating Member
Join Date: Aug 2006
Posts: 5,142
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hmm odd, given what i've been told.....
Anyway I probably won't end up worrying about any of this. There is another Ford i'd much prefer at this point ;) |
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Camshaft options for 220
Linear Mode
