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X51 Header install this week, with dyno (05 C2S)

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Old 02-18-2010, 03:28 PM
  #31  
SKYKING
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I do not. I know there is a kit comming but I do not know if it has been shipped/installed on a vehicle yet. I will check with Suncoast.
Old 02-18-2010, 03:39 PM
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alexb76
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Originally Posted by SKYKING
I do not. I know there is a kit comming but I do not know if it has been shipped/installed on a vehicle yet. I will check with Suncoast.
Definitely out in Europe and an option on order list. Here's the details on Porsche website:

Engine upgrade to 408 hp. Comprised of modified cylinder heads, carbon-fiber air filter casing (upper part), new variable resonance intake manifold with six tuning flaps, sports exhaust system featuring specially designed twin dual-tube tailpipes and modified engine management. Note: also available in conjunction with PDK.

Last edited by alexb76; 02-18-2010 at 05:32 PM.
Old 02-19-2010, 03:23 AM
  #33  
Sadiq
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anyone know the weight difference between the two?
Old 02-19-2010, 11:46 AM
  #34  
SKYKING
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Suncoast has confirmed they have delivered a new 2010 Carrara S with the new Powerkit. No additional information is available at this time. I am trying to get info on the owner's comments.
Old 02-19-2010, 03:50 PM
  #35  
utkinpol
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Originally Posted by hausherrs

SAE HP - 329.7@6700 & TQ - 278.7@4700
STD HP - 344.7@6700 & TQ - 291.4@4650

Headers go on tomorrow then I will run it again.

Steven
So, any news about second dyno run?
Old 02-22-2010, 09:40 AM
  #36  
hausherrs
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Ill run it tomorrow..

Thanks,

Steven
Old 02-23-2010, 12:46 PM
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Dave07997S
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Originally Posted by hausherrs
Ill run it tomorrow..

Thanks,

Steven
Steven,let us know...thanks.

Dave
Old 02-23-2010, 01:13 PM
  #38  
Edgy01
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My prediction is a slight loss of torque (due to the larger pipe diameter on the X51 header pipes). But I like the sound more!
Old 02-23-2010, 01:26 PM
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Mike in CA
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Not being critical and to each his own and all that, but sorry, added weight + less torque (if true) = more noise just doesn't compute for me.
Old 02-23-2010, 03:11 PM
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alexb76
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We gotto wait and see! X51 has more torque, not sure how much of it is due to headers though!
Old 02-23-2010, 05:26 PM
  #41  
KeninBlaine
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My prediction is that any measured change due to the X51 headers will be less than the standard variations in dyno measurements. Plus, any change that minor will make no difference in driving performance. I put the X51s on my last car, and like the look of them (and how often do we look at them?), but don't believe they do anything for actual performance. I don't buy the argument that Porsche held back so they could charge for them as part of an expensive power package that includes many other refinements for an additional 29 hp.
Old 02-23-2010, 05:35 PM
  #42  
utkinpol
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Originally Posted by keninirvine
My prediction is that any measured change due to the X51 headers will be less than the standard variations in dyno measurements. Plus, any change that minor will make no difference in driving performance. I put the X51s on my last car, and like the look of them (and how often do we look at them?), but don't believe they do anything for actual performance. I don't buy the argument that Porsche held back so they could charge for them as part of an expensive power package that includes many other refinements for an additional 29 hp.
well, only way to know is to see old and new curves on a same grapth. if anything will get changed in the way how ECU controls engine form of new curves will be different. it also would be great to see timing and AFR curves on same graph with torque/power curves.
Old 02-23-2010, 09:21 PM
  #43  
Edgy01
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I think they held them back to save the weight.
Old 02-23-2010, 10:54 PM
  #44  
cab&coupe
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Can't wait to hear the results...
Old 02-23-2010, 11:22 PM
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brendo
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Originally Posted by cab&coupe
Can't wait to hear the results...
no pun intended?


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