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Canucks Fan
Join Date: Jan 2009
Location: Vancouver B.C. Canada
Posts: 2,217
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Turbo 996 question
I have an 87 930 and love it and will keep it forever but I've been looking at a 996 turbo lately and thought I might find some advise here.
I posted a similar question on the 996 board and although this is the 930 section I think someone will be able to set me straight. The turbo 996 has a different engine than the na 911, that I know but I thought that the turbo's had no IMS. Does a 996 turbo have an IMS ? Thanks. Finn
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From the Deep Dark Jungle |
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01-08-2013, 10:49 AM
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Registered
Join Date: Aug 2007
Location: Austin
Posts: 587
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All model year 1997-2008 Boxster, Cayman, and 911 models can suffer from IMS failures, with exception of Turbo, GT2, or GT3 models.
IMS Retrofit | The LN Engineering IMS Retrofit Kit for MY97-05 Porsche Boxster and 911 Models |
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01-08-2013, 12:00 PM
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I would rather be driving
Join Date: Apr 2000
Location: Austin, TX
Posts: 9,108
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IMS is the intermediate shaft. This is the layshaft that runs off the crank to drive the cams. All 911s have them.
However, the 996 turbo does not use the same engine case design as the M96. The M96 came in Boxster, Cayman and Carrera displacements and trim. The Turbo, GT3 and GT2 engines are all based on the 993 case originally developed for the 964. This has a very different internal structure and does not have the same IMS bearing issues. The issue is that the end bearing on the IMS shaft was designed to not need lubrication during its lifetime. However, they have been known to leak, fail, sieze, etc which quickly changes cam timing and then the engine goes, well you know. Boom. I would love to have a 996TT as a daily driver. Amazingly capable cars. Fast and sure-footed.
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Jamie - I can explain it to you. But I can not understand it for you. 71 911T SWT - Sun and Fun Mobile 72 911T project car. "Minne" - A tangy version of tangerine #projectminne classicautowerks.com - EFI conversion parts and suspension setups. IG Classicautowerks |
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01-08-2013, 12:15 PM
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I've gone native
Join Date: Sep 2011
Location: Long Island, NY
Posts: 1,695
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996tt is a great car as a dd.
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01-08-2013, 02:27 PM
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Registered
Join Date: Jan 2009
Location: San Diego
Posts: 725
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Basically the 996TT is bulletproof.
It is the most reliable car I own.
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1998 993 C2S Guards Red/Black 1990 964 C2 RWB project car 2016 GT3RS White Daily driver 2018 Lamborghini Performante Gegio Telesto |
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01-08-2013, 03:25 PM
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Registered
Join Date: Jan 2007
Location: Melbourne, Australia
Posts: 1,589
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996 Turbo is an awesome car, on my list or a 997TT as a DD in the future, amazing value too.
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'89 911 M491+Turbo '90 964 C2 '89 944 Turbo '88 928S4 |
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01-08-2013, 03:46 PM
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