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16-04-2009, 11:12 AM
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#1 | ||
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FF.Com.Au Hardcore
Join Date: Apr 2009
Posts: 629
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Hi, everyone!
Should i get new extractors for my XR8? Im lookin at pacemaker competition headers.... Cheers |
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16-04-2009, 01:16 PM
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Banned
Join Date: Sep 2007
Posts: 855
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Get tri y, secondaries instead ;) only get comps if you plan to stroke, supercharge etc? tri y's are quicker street wise.
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16-04-2009, 01:45 PM
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FF.Com.Au Hardcore
Join Date: Apr 2009
Posts: 629
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What part number are they for pacemaker? IS it PH 4001?
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16-04-2009, 05:56 PM
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Regular Member
Join Date: Jan 2005
Location: Canberra
Posts: 364
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I can't remember the part number, but I went with the Pacemaker 4-2-1. I noticed a difference straight away once they were fitted.
You soon get used to it though,and start looking for more power, then the vicious cycle begins....
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FPV GS Ute #370/Brembo brakes |
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16-04-2009, 09:40 PM
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#5 | ||
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Boost is here!!
Join Date: Oct 2005
Location: Perth W.A
Posts: 4,961
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You have plans of supercharging so get the 4into1's, you'll kick yourself later if you dont.
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STREETBUILT RACING '99 XHII XR8, 363w, GT4508R on 16psi, E85, C4, 910rwhp - ET coming soon! '78 XC Falcon 500, Desert Gold, 351w, V2 on 16psi, E85, C4, 9" - 10.15@132mph! |
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17-04-2009, 10:20 AM
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#6 | ||
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FF.Com.Au Hardcore
Join Date: Apr 2009
Posts: 629
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Yeh thats what i was thinking.... But if i do it, in the meantime will it have any good gains still?
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17-04-2009, 11:18 AM
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#7 | ||
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FF.Com.Au Hardcore
Join Date: Jan 2008
Location: Sunbury, vic.
Posts: 3,110
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PH4001's are pacemaker tri y's t0 suit AU v8's
PH4006's are pacemaker c0mp 4 int0 1's f0r AU. We've fitted a few pairs 0f extract0rs t0 AU v8's and had better perf0rmance fr0m the c0mp 4 int0 1's 0ver the tri y's, 0n st0ck and w0rked cars. I d0 rec0mmend u g0 the c0mps, just be warned that they aint a nice fit with the b0lts int0 the heads, and it is w0rth y0ur while g0ing and getting a set 0f alley key headed unbreak0's instead 0f the supplied b0lts. Als0 AU extract0r gaskets are different t0 n0rmal winds0r as the p0rt height is different, s0 make sure u get the c0rrect 0ne's 0therwise ur wasting ur extract0rs by bl0cking them 0ff 1/4 inch at t0p 0f p0rt.
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T058 TS50 - 302 AFR165, Victor 5.0, Custom Cam, tuned by me, 245.6rwkw 329rwhp at 6800rpm. |
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17-04-2009, 02:52 PM
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#8 | ||
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Back on the road
Join Date: Dec 2004
Location: Wollongong, NSW
Posts: 3,205
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The PH4006 Pacey Comps are great, I love them.
Dont let anyone talk you into "4-1's are too big....tri-y's make more torque" rubbish, they still have a small 1 5/8" primary and 2 1/4" collector. Agreed they are a bit tricky around the bolts. I definitely recommend allen keys as well. They retail for a lot more than the tri-ys, but you should be able to find them for a lot less than the RRP...
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------------------------------------------------------------------------- AU XR8 Ute 13.90 @ 100mph - http://www.aufalcon.com/xr8ute 5L Windsor, GT40X heads, Crane 2030, Pacey 4-1s, Lukey 3", 3.91:1, auto. Tuned by me w/Quarterhorse and BinaryEditor. Coming Soon: Ported lower intake, Tickford "Premium" Brakes, and a good wash. |
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17-04-2009, 05:54 PM
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#9 | ||
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FF.Com.Au Hardcore
Join Date: Apr 2009
Posts: 629
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Im getting it done at a exhaust shop... Do i still need to give them allen key bolts? Or will they sort it out?
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17-04-2009, 06:41 PM
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#10 | ||
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FF.Com.Au Hardcore
Join Date: Dec 2004
Location: Perth NoR
Posts: 5,971
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The other headers to look at are the Di Fillipo 1 3/4" 4-1s, especially if you are planning on a blower later down the track.
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17-04-2009, 09:32 PM
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#11 | ||
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Banned
Join Date: Sep 2007
Posts: 855
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A memeber has a PH 4001's for sale in the for sale section... very cheap!
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17-04-2009, 09:39 PM
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#12 | |||
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Boost is here!!
Join Date: Oct 2005
Location: Perth W.A
Posts: 4,961
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Quote:
I can only find the e-series PH4000's for sale?
__________________
STREETBUILT RACING '99 XHII XR8, 363w, GT4508R on 16psi, E85, C4, 910rwhp - ET coming soon! '78 XC Falcon 500, Desert Gold, 351w, V2 on 16psi, E85, C4, 9" - 10.15@132mph! |
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17-04-2009, 11:13 PM
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#13 | ||
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Banned
Join Date: Sep 2007
Posts: 855
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Maybe i read it wrong... lol few coopers will do that to ya ;)
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18-04-2009, 05:57 PM
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#14 | ||
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formerly "3x-puursui7"
Join Date: Feb 2006
Location: perth, WA (SOR)
Posts: 224
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i recomend the PH4006's highly! i got a set and the full system. the difference in the top end was very noticeable straight away.
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all hail the mighty V8's  http://www.aufalcon.com.au/3x-puursui7 |
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19-04-2009, 10:40 AM
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#15 | ||
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Regular Member
Join Date: Jun 2008
Location: Tassie
Posts: 408
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so what's the best bang for buck for a 200kw auto? tri-y's or comps? exhaust, cai and tune is all she'll ever get. I always thought the tri-y's would be best?
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Extractors for my AU XR8?
Linear Mode
