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X51 power kit

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Old 04-26-2008 | 07:14 PM
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X51 power kit

How many horses are added to the carrera C4S @ 320hp?

thanks
 
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Old 04-26-2008 | 08:29 PM
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OK your question is not that clear, but if your asking how much HP does the X51 powerkit have over the non X51. Its 25 more HP
 
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Old 04-27-2008 | 08:41 AM
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X51 is a 345 HP Motor... i have been told Power is Under Rated...
 
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Old 04-27-2008 | 12:17 PM
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Originally Posted by Zookie
X51 is a 345 HP Motor... i have been told Power is Under Rated...
I took my car to a newly referred mechanic for a "check-up". The guy services porsches, ferraris, lambos, etc. Anyway he test drove it and commented the car was a "champion" compared to similar models with non X51 engine he has driven. I didn't realize that's the way to drive a porsche (My driving knowledge is with the turtle group )

He also said the wheel bearings on the driver side might need replacement

From what I've read, X51 engine includes aluminum manifold, ported heads, larger bore exhaust manifold with sports exhaust, and a revised ECU.
 
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Old 04-27-2008 | 12:24 PM
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thanks guys!
 
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Old 04-30-2008 | 07:25 PM
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that's a lot of work for about 25 extra horsey.....
 
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Old 04-30-2008 | 07:32 PM
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It's fairly expensive to do it as an add-on. There are probably more cost efficient options out there ...
 
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Old 04-30-2008 | 07:33 PM
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Originally Posted by dreamtripper
It's fairly expensive to do it as an add-on. There are probably more cost efficient options out there ...
takes time, smarts and $$$$ to truly do right on a normally aspirated engine
 
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Old 04-30-2008 | 08:19 PM
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It's too much to add on, try to find one with the kit already on it.
 
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Old 01-11-2014 | 08:14 PM
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How can you visually tell an x51 996 C4S from a non x51?
Exhaust finishers?
Something in the vin?
WP0AA29942S622817

Thanks,

QC
 
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Old 01-12-2014 | 07:27 AM
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x51 intake manifold will be flatter and wider and will be made from all aluminum unlike the black plastic runners of the non-x51 manifold.
 
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Old 01-12-2014 | 07:56 AM
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Originally Posted by tokyopav
x51 intake manifold will be flatter and wider and will be made from all aluminum unlike the black plastic runners of the non-x51 manifold.
Great. Exactly the info I need. Thanks for the reply and pic
Cheers

Rob
 
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