C2S vs C4S radiator question
#1
C2S vs C4S radiator question
This afternoon I test drove two different 997.2 cabs. One '09 C4S and one '11 C2S. The former was a 6-spd and the latter a PDK.
I was surprised to see that the 09 C4S had plastic in the lower part of the grille where the C2S (and my previous 996 Turbo) has a center radiator.
What gives? Why doesn't the 09 C4S have that radiator?
I was surprised to see that the 09 C4S had plastic in the lower part of the grille where the C2S (and my previous 996 Turbo) has a center radiator.
What gives? Why doesn't the 09 C4S have that radiator?
#4
Rennlist Member
I do not know the exact specifications for why a 997 would or would not have the center radiator but my 2012 997.2 GTS is a 6MT with no center radiator.
GTSs have the X51. So not all X51 equipped cars with a 6MT will have the center radiator.
You cannot use that as a definition descriptor.
#5
So maybe it is just related to PDK?
@nwGTS - slight aside: how do you like your GTS? I recently sold my 996 Turbo and I'm thinking about getting a 997.2 cabriolet. I like the idea of a wide body with 2WD. Unfortunately, GTS cabs are fairly rare and a bit more expensive than I was hoping to spend, but look to be a great car. I found a local one to test drive, so I need to get myself down to Boston!
@nwGTS - slight aside: how do you like your GTS? I recently sold my 996 Turbo and I'm thinking about getting a 997.2 cabriolet. I like the idea of a wide body with 2WD. Unfortunately, GTS cabs are fairly rare and a bit more expensive than I was hoping to spend, but look to be a great car. I found a local one to test drive, so I need to get myself down to Boston!
#7
I have a 2010 C4s PDK and no center radiator.
I got sport chrono plus too
So its not 2010's on up.
What I can tell you is that I have tracked my car in 90deg+ and never had any issues with heat buildup anywhere..so I don't get the third radiator thing.
Maybe if you're sitting in traffic?
I got sport chrono plus too
So its not 2010's on up.
What I can tell you is that I have tracked my car in 90deg+ and never had any issues with heat buildup anywhere..so I don't get the third radiator thing.
Maybe if you're sitting in traffic?
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#8
I just took my C4S for some spirited driving yesterday in 98F weather... Mine has no center rad and there were no temp issues...
#9
I don't think that third radiator is for cooling the engine, I suspect it is for cooling some other system.
So while I'm asking questions, every 997.2 I have seen has a "Sport" button and a button with a shock image. A few of the vehicles have had a "Sport Plus" button.
Can someone help me understand which options correlate to which buttons?
Thanks.
So while I'm asking questions, every 997.2 I have seen has a "Sport" button and a button with a shock image. A few of the vehicles have had a "Sport Plus" button.
Can someone help me understand which options correlate to which buttons?
Thanks.
#10
Burning Brakes
No, the third radiator is for the engine coolant.
This in turn gives you a larger coolant heat sink, which makes the car more resistant to heatsoak. Engine coolant cools the engine oil on 6MT cars and engine oil AND transmission oil on the PDK cars, which is why PDK cars usually got the third radiator.
This in turn gives you a larger coolant heat sink, which makes the car more resistant to heatsoak. Engine coolant cools the engine oil on 6MT cars and engine oil AND transmission oil on the PDK cars, which is why PDK cars usually got the third radiator.
#11
Three Wheelin'
No sure about the 997.2
But for 997.1, only GTS, GT3, Turbo had the center radiator.
I added center radiator to my 07 4S. On 100F days and on the track I would see 245/250F.
After adding third radiator, never gone over 220 and always sits around 215/220.
Note, you will not see the effect of the third radiator until you need otherwise the car will regulate temp to the optimal 215/220F.
But for 997.1, only GTS, GT3, Turbo had the center radiator.
I added center radiator to my 07 4S. On 100F days and on the track I would see 245/250F.
After adding third radiator, never gone over 220 and always sits around 215/220.
Note, you will not see the effect of the third radiator until you need otherwise the car will regulate temp to the optimal 215/220F.
#12
Rennlist Member
No sure about the 997.2
But for 997.1, only GTS, GT3, Turbo had the center radiator.
I added center radiator to my 07 4S. On 100F days and on the track I would see 245/250F.
After adding third radiator, never gone over 220 and always sits around 215/220.
Note, you will not see the effect of the third radiator until you need otherwise the car will regulate temp to the optimal 215/220F.
But for 997.1, only GTS, GT3, Turbo had the center radiator.
I added center radiator to my 07 4S. On 100F days and on the track I would see 245/250F.
After adding third radiator, never gone over 220 and always sits around 215/220.
Note, you will not see the effect of the third radiator until you need otherwise the car will regulate temp to the optimal 215/220F.
#13
Drifting
No sure about the 997.2
But for 997.1, only GTS, GT3, Turbo had the center radiator.
I added center radiator to my 07 4S. On 100F days and on the track I would see 245/250F.
After adding third radiator, never gone over 220 and always sits around 215/220.
Note, you will not see the effect of the third radiator until you need otherwise the car will regulate temp to the optimal 215/220F.
But for 997.1, only GTS, GT3, Turbo had the center radiator.
I added center radiator to my 07 4S. On 100F days and on the track I would see 245/250F.
After adding third radiator, never gone over 220 and always sits around 215/220.
Note, you will not see the effect of the third radiator until you need otherwise the car will regulate temp to the optimal 215/220F.