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JayG60
Silverstone


Joined: 14 Jun 2004
Posts: 117
Location: United Kingdom


PostPosted: Sat Nov 03, 2018 2:42 pm    Post subject: Weaknesses of a 997 other than the engine.... Reply with quote

As I am currently in the process of starting an LS3 swap into my 997 3.8s (“Project half a cup” thread) which will eliminate all the weaknesses of the M97 engine. I also want to know what other aspects of the 997.1 people think could be improved,
One I will be addressing is cooling, so I will add a third rad and upgrade the other two, I will also be adding Porsche cup electric steering pump, adjustable bushes and some aero bits, as well.
Thoughts....

Cheers

Jay
 
  
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spongebob squarepants
Reims


Joined: 20 Dec 2009
Posts: 4182
Location: Manchester and Iraq


PostPosted: Sat Nov 03, 2018 2:57 pm    Post subject: Reply with quote

Going off at a tangent on the coolant element has anybody ever used waterless coolant with its enhanced cooling properties? Which seems ideal on a 911 where cooling is clearly a big issue?
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"When the seagulls follow the trawler, it is because they think sardines will be thrown into the sea".



991 C2S X51 powerkit PDK in racing yellow, PCCB, PDCC, PSE, Sports design kit.
EX 997.2 Carrera 4S PDK
EX 997.2 Carrera S PDK
EX 993 C2 manual in guards red
EX 997 C2 gen 2 PDK
EX 993 Targa
EX 993 Carrera 4 manual
EX 996 3.4 Cabriolet
 
  
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maldren
Österreich


Joined: 07 Oct 2016
Posts: 923



PostPosted: Sat Nov 03, 2018 5:32 pm    Post subject: Reply with quote

There are threads here somewhere. IIRC people recon it has issues. Hartech had interesting comments, try a search.

Interestingly magazines have fitted it but not provided long term assessments.

Oh and it's expensive, you need to factor in the flushing procedure....
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Mike
2003 996.2 C2 Coupe Arctic Silver
 
  
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Clanky
Österreich


Joined: 24 Aug 2012
Posts: 919
Location: Scotland

2007 Porsche 997 Turbo

PostPosted: Sat Nov 03, 2018 11:28 pm    Post subject: Reply with quote

From what I've read, the 3rd rad isn't really needed unless it running in a hot climate.
The cooling problem is caused by the thermostat being on the return line to the engine on the original M96/97 engines.
I for one cant understand the reason for it being fitted there at all.

Assuming the LS3 has the stat on the water pump side it shouldn't be an issue.
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996 C4s (Gone)
997 Turbo

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msaif996
Trainee


Joined: 08 Dec 2010
Posts: 59
Location: 997.1 Turbo Conv. 6MT


PostPosted: Sun Nov 04, 2018 3:25 am    Post subject: Reply with quote

Not too sure about the hot climate, I have a MY02 996 3.6 Carrera 6Mt 80k Miles completely standard and I regularly drive it in the summer when temperatures reach 55c. No issues whatsoever.
 
  
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