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Old 02-14-2014, 12:10 PM   #1
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986 & 996 Radiators

Do 1999-2004 996s have a third radiator like the 2001-2004 Boxster S? Do the 996 Turbo 911s have a third radiator?

If not, are the 996 and 996 Turbo radiators larger(greater capacity) than a base 986 Boxster?

I ask this question, because I am considering if it is cost effective to replace the 2.5L in my 99 Boxster with a 3.4L out of a 1999-2000 996. If the 996 only has two radiators for a 3.4L, then the two radiators are must be larger than a base Boxster's and maybe I should just fit two 996 radiators to my car instead of putting a third radiator and cutting my bumper cover.

My car has over 205,000 miles. I would like to get 300,000 miles out of it.

I appreciate your sage comments.

MNC-I
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Old 02-14-2014, 12:41 PM   #2
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Quote:
Originally Posted by mnc-i View Post
Do 1999-2004 996s have a third radiator like the 2001-2004 Boxster S? Do the 996 Turbo 911s have a third radiator?

If not, are the 996 and 996 Turbo radiators larger(greater capacity) than a base 986 Boxster?

I ask this question, because I am considering if it is cost effective to replace the 2.5L in my 99 Boxster with a 3.4L out of a 1999-2000 996. If the 996 only has two radiators for a 3.4L, then the two radiators are must be larger than a base Boxster's and maybe I should just fit two 996 radiators to my car instead of putting a third radiator and cutting my bumper cover.

My car has over 205,000 miles. I would like to get 300,000 miles out of it.

I appreciate your sage comments.

MNC-I
996 C2 only have 3rd rad if it has auto trans. 99 Boxster & 996 are identical from doors forward including rad. Many people have installed 99-01 3.4 engines in 97-99 Boxsters without cooling mods, I would recommend: 160 thermostat, new porsche water pump, through cleaning of radiators, & ceramic thermal barrier coated headers.
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Old 02-14-2014, 06:26 PM   #3
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My 3.6 does fine with the 1998 2.5 radiators.
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Old 02-14-2014, 07:47 PM   #4
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Byprodriver,

Thanks for the feedback.

MNC-I
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Old 02-14-2014, 08:00 PM   #5
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Im running on 2 rads with no problems too
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