Best 997GT2 intercooler
06-11-2009, 05:02 PM
#31
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Durametric arrived today so I couldn't resist getting some data:
Ambient temp is 16 to 17 degC (61DegF) IAT during normal off boost type driving was a steady 24DegC (75DegF)
I charted a blast up to 5500rpm in 5th then dropped to 4th and wrung it out to the limiter at 141mph.
The maximum IAT in 4th was 46.5degC (114 DegF).
This is on a relatively cool day so it will be interesting to see what higher ambient temperatures bring.....
Ambient temp is 16 to 17 degC (61DegF) IAT during normal off boost type driving was a steady 24DegC (75DegF)
I charted a blast up to 5500rpm in 5th then dropped to 4th and wrung it out to the limiter at 141mph.
The maximum IAT in 4th was 46.5degC (114 DegF).
This is on a relatively cool day so it will be interesting to see what higher ambient temperatures bring.....
greetz mando
06-13-2009, 12:50 PM
#36
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Final testing on stock intercoolers before new units are fitted....
22-23 Degrees C today so quite warm for the UK, I managed to get the engine nice and hot with quite scary results.
at the limiter in 5th gear saw the IAT at 62.5 degrees C
this is very high, 40 Deg C above ambient and for sure timing pull so plenty of room for better intercoolers to give some free hp....
I am hoping for my new ones to come in around 20 degrees C above ambient under same conditions.
22-23 Degrees C today so quite warm for the UK, I managed to get the engine nice and hot with quite scary results.
at the limiter in 5th gear saw the IAT at 62.5 degrees C
this is very high, 40 Deg C above ambient and for sure timing pull so plenty of room for better intercoolers to give some free hp....
I am hoping for my new ones to come in around 20 degrees C above ambient under same conditions.
Last edited by TB993tt; 06-15-2009 at 12:25 PM.
06-15-2009, 08:28 AM
#37
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06-15-2009, 01:56 PM
#38
Three Wheelin'
As you know, I am realy interested in your total package results.
Is there any concerns about changing the IC without adjusting the DME?
06-15-2009, 02:57 PM
#39
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DME will be fine, the data we have far shows that these run very warm IATs, if the intercooler works as well as Secan and keeps at ~20degC above ambient it will just keep the mapping in maximum timing advance zone. With your tuned ECU you would benefit even more since inevitably your engine will be running more BTU and hotter than stock IATs
06-16-2009, 04:24 PM
#41
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Look good TB993TT... on this picture I might have been tempted to widen out the end tank a bit for slightly better flow but judging by the data you posted it doesn't really matter
06-16-2009, 06:57 PM
#42
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I love the tech talk as much as if not more than the next guy but really if you are paying people to do the math and come up with an expensive product you have to leave them to it........ I am still not sure that they will prove as good as the Secans, further testing will tell
06-16-2009, 07:12 PM
#43
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Alex, I have had some great "tech" talk on intercoolers whilst I have been getting stuck into this project (which is great fun) but basically I left it to the aerospace engineers and said to fellow online "experts" , yes I know what you are saying but lets just see how they perform ?
I love the tech talk as much as if not more than the next guy but really if you are paying people to do the math and come up with an expensive product you have to leave them to it........ I am still not sure that they will prove as good as the Secans, further testing will tell
I love the tech talk as much as if not more than the next guy but really if you are paying people to do the math and come up with an expensive product you have to leave them to it........ I am still not sure that they will prove as good as the Secans, further testing will tell
