996 Turbo / GT2 Turbo discussion on previous model 2000-2005 Porsche 911 Twin Turbo and 911 GT2.

Intercooler Cores

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Old Dec 13, 2010 | 08:17 AM
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Chad-
I might be able to get you ONE Secan to look at if you are interested. It was on a 993 GT2 EVO and was replaced. Don't know if it would help you efforts but you might be able to get an idea on their technology at least. If interested let me know and I'll see what I can do.
 
Old Dec 13, 2010 | 09:42 AM
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I subscribe very good thread.
 
Old Dec 13, 2010 | 06:05 PM
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Originally Posted by $manager
Chad-
I might be able to get you ONE Secan to look at if you are interested. It was on a 993 GT2 EVO and was replaced. Don't know if it would help you efforts but you might be able to get an idea on their technology at least. If interested let me know and I'll see what I can do.

I believe I would be very interested. Could you send me a PM with your phone number and I will call you or if you like I could e-mail you mine.
 
Old Dec 13, 2010 | 09:58 PM
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Looking forward to your findings Chad.
 
Old Dec 13, 2010 | 10:54 PM
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Originally Posted by cjv
Mark,

I do know a lot about IC's, however surely not everything. I have discovered I learn far more by listening than talking. I have already picked up one bit of information from this thread and hope to pick up some more.

I had a pretty trick set of IC's on my old motor. The cores were smaller then as were the inlets and outlets seizing. We also utilized liquid CO2 cooling of the cores and the double jacketed Y pipe. The interesting thing we discovered was after a certain ambient temperature the delta was minimal.

Would you like to have your IC's included in our test? Provide a set and I will have them tested on my dime when we test some others. If they are the best ones I would be happy to pay for them. Otherwise I would provide you with the results and return them.
Im sure you know a lot and have done a lot lol
Im car is getting dyned... last set up had the 4.5s... now the 6"... Im very interested in the numbers... the dyno will tell us....
Ill share that info with you...
btw, to fit them I had to do somewhat serious fabbing..
mark
 
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Old Dec 13, 2010 | 11:01 PM
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Going to run Stacked 3" Cores on My Gt2.. On ethanol we dont have heat issues at all at 58psi with just 4.5" cores but they are 24x12 so Im going 6 " to play it safe..
 
Old Dec 13, 2010 | 11:29 PM
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Old Dec 13, 2010 | 11:37 PM
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Originally Posted by MARKSKI@911tuning
Im sure you know a lot and have done a lot lol
Im car is getting dyned... last set up had the 4.5s... now the 6"... Im very interested in the numbers... the dyno will tell us....
Ill share that info with you...
btw, to fit them I had to do somewhat serious fabbing..
mark
I would appreciate any and all info.

As you increase the depth of the cores you will hit a point of decreasing and then negative returns (efficiency). This is a result of the ambient flow warming as it goes farther thru the core. I would be very interested in what you learn.

We will be doing our tests on an engine dyno which will allow very good control of the variables on the different IC's.

Whatever IC we choose, we will make it fit if it is physically possible. On another note we are looking at the wide body fenders. If we opt for them we will be able to utilize larger cores. The tests will determine the way we proceed.
 

Last edited by cjv; Dec 13, 2010 at 11:50 PM.
Old Dec 13, 2010 | 11:41 PM
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Originally Posted by cjv
I would appreciate any and all info.

As you increase the depth of the cores you will hit a point of decreasing and then negative returns. This is a result of the ambient flow warming as it goes thru the core. I would be very interested in what you learn.

We will be doing our tests on an engine dyno which will allow very good control of the variables on the different IC's.

Whatever IC we choose, we will make it fit if it is physically possible. On another note we are looking at the wide body fenders. If we opt for them we will be able to utilize larger cores. The tests will determine the way we proceed.
I may know end of week... same dyno same car... etc... so we should some controlled results.... then its going on the street too...
 
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Old Dec 13, 2010 | 11:44 PM
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Originally Posted by Mike@AwdMotorsports
Going to run Stacked 3" Cores on My Gt2.. On ethanol we dont have heat issues at all at 58psi with just 4.5" cores but they are 24x12 so Im going 6 " to play it safe..
Mike,

When you say staked ........ do you mean one core in front of the other?

We are running E85 and water/meth injection. We will be no where near 58 psi as we developed 1000 hp with just under 15 psi.
 

Last edited by cjv; Dec 13, 2010 at 11:48 PM.
Old Dec 13, 2010 | 11:46 PM
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Originally Posted by MARKSKI@911tuning
I may know end of week... same dyno same car... etc... so we should some controlled results.... then its going on the street too...
With the engine dyno we can control not only air temperature into the IC's but also the flow. It will be pretty exacting and we will keep these numbers realistic.
 
Old Dec 14, 2010 | 05:35 AM
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Originally Posted by Casey@TPCRacing
As Markski said it really depends on your set up. I have the same Proto 5 inch ones, and I can tell you that on AT of 6c, they are are 43c at 200mph. At 19c then are at 53c at 200mph.
What they do well is recover very quickly.
 
Old Dec 14, 2010 | 05:59 PM
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Originally Posted by 996ttalot
As Markski said it really depends on your set up. I have the same Proto 5 inch ones, and I can tell you that on AT of 6c, they are are 43c at 200mph. At 19c then are at 53c at 200mph.
What they do well is recover very quickly.
I wouldn't consider the above to be a good example. The air going over the cores at 200 mph would make a lot of IC's look good.

It's a kind to the power variances noted on a chassis dyno due to different cooling fan setups. The true test will note the inductance air temperature delta with constant flow and air temps between different IC's.
 
Old Dec 15, 2010 | 06:20 AM
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Originally Posted by joetwint
Evoms has a new core which happens to be terribly efficient on their 1300+whp997.I am not at liberty to say much more other than a set will be on my car soon and we will undoubtedly be able to tune my car more aggresively and still keep the motor in the safe zone.Maybe give Todd Z a call and he can fill u in.
Here are the cores that we are using on my 997.1TT. We have been testing this intercooler core for the past 1.5 years and it is BY FAR the most efficient core we have found. I have tested dozens of different cores from "aerospace" companies, Garrett and many others. Most of the efficiency was directly related to the design of the intercooler core and NOT the size of it. I will post the specific details about the design of these cores and what we found in terms of efficiency later. FWIW, these are 4.5" thick and support a REAL 1300+ Wheel HP
 
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Old Dec 15, 2010 | 10:37 AM
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Originally Posted by Evolution MotorSports
Here are the cores that we are using on my 997.1TT. We have been testing this intercooler core for the past 1.5 years and it is BY FAR the most efficient core we have found. I have tested dozens of different cores from "aerospace" companies, Garrett and many others. Most of the efficiency was directly related to the design of the intercooler core and NOT the size of it. I will post the specific details about the design of these cores and what we found in terms of efficiency later. FWIW, these are 4.5" thick and support a REAL 1300+ Wheel HP
a tube n fin design that looks like its used to high pressure flow across the core, interesting.
 


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