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Old 10-05-2012, 10:30 AM   #1
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engine swap

Is it possible to swap out a 2.5L from a 97 986 and replace it with a 2.7L from a 2001 986? Will the immobilizer need to be replaced? Any other technical issues? Do I need to convert the car to egas or can I just use the throttle cable?
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Old 10-06-2012, 06:02 AM   #2
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I'm no expert on this, but I've researched it.

It's best to swap a 97 2.5 with a 3.4 out of a 97-99 911. Egas conversions are tough.

Plus, you get far more power than the tiny bump from 2.5 to 2.7...
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Old 10-08-2012, 05:57 AM   #3
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engine swap

Thanks. I have an extra 2.7L and trans on hand. Maybe I can find a 3.4 to swap for.
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Old 10-08-2012, 12:08 PM   #4
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I'm no sexpert but I believe if you find a 3.4 you can use the 2.7 trans with it.
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Old 10-08-2012, 03:52 PM   #5
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All you need to do to put the 2.7L engine in the early car is swap the engine harness and put the center throttle body T with throttle body from the 2.5 on the 2.7 intake. I just did this to my dads car. We built a 2.9 out of a 2.7 and put it in his 99 Boxster.

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Old 10-09-2012, 12:15 PM   #6
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This might be a good place to start your research:

Pelican Technical Article: Boxster Engine Conversion Project - 986 Boxster (1997-04) - 987 Boxster (2005-08)
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Old 10-10-2012, 07:40 AM   #7
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Thanks, I have the harness also.
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