Mark,

There is so much to the IC science that simply isn't know by the general Porsche public. There is a science to both the cores and the end tanks.

To set up and test on an engine dyno is going to take a few days. The cost without multiple intercooler changes will be in excess of 7K.

I was hoping to defer additional costs by not having to buy multiple cores and build multiple tanks which you know would be expensive. I am not sure why you have put it the way you did. Maybe I am simply reading what you are saying wrong.

A couple of years ago you needed cams for your engine, I loaned you a complete set, I didn't get them back although you or Todd did pay me my costs). My understanding from Todd was you needed them for your engine and they were not available anywhere. I was surprised I didn't get them back, but I understood your project was in a hurry and I deferred. You also needed an axel and I sent it too you. You had it for a few months and it was returned. In both cases I sent you the parts with no money up front. I trusted you and was trying to save you some money.

What I am doing now is similar. I am trying to save some expense if anyone has any of these IC's that could be tested and returned. I would share the information learned. Depending on what comes up will determine what gets tested.

Judging from this thread and what was said EVO is the only ones who have done any real testing. That isn't to say others have and just not said anything. This is OK too.

 

Todd,

I understand you are very busy. I appreciate this note. Thanks's for the photos. Would it be possible to get picture of the reverse side of the tank on the right? I will try to contact you soon.

 

It would be interesting know what material different cores are made of since thermal conductivity is critical. Are they all made of the same aluminum alloy or does that differ as well?

 

Unfortunately with the 911 platform there is many trade offs that are being made. I feel the intercooler is the area that gets the brunt of it. If the car is not moving no air is crossing over the cooler. There is a set amount of air that goes through the side vents. Then some people remove the shrouding (which is making a venturi effect) and on top of that pull intake air from the same spot (not up on the math but 1000hp motor need about 900-1000 cfm) now that 450-500 cfm of flow is not hitting the cooler. Some guys are running blow offs or DV on the inlet side of the intercooler. all though it many patch one problem it is stalling the air across the core and even reversing the air flow through the core. How in the world does that help efficiency? cjv said it best: "There is so much to the IC science that simply isn't know by the general Porsche public. There is a science to both the cores and the end tanks."

 

Any updates here? This was taking the shape of a very interesting thread...

 

Guys, anything new here?

I can show my excel with some data but don't know how
ambient 2 C intake 2 C acceleration up to 275km/h and 20C intake temp.

what also was interesting in this excel...

at 259,97km/h I had 19C
at 260,13km/h I had 20C up to 260,34km/h (gear change)

than at 260,92km/h I had again 19C up to 275,31km/h
and again 20C

 

i found these cores on display ata top end fabricator booth at the Tokyo Auto Salon.

These cores are made by ARC

 

ARC is delivering high quality products.
have you got dimensions of this core?

 

Karol, what intercoolers are you running?

 

I'm running liquid cooler system which I developed with in 2 years


but finally it look like it's working as hell

 

this cooler was a front mount intercooler for a evo i think or a subaru application

3" thick 2ft long or so

looks like Mackin industries in CA is the dealer for the USA on ARC products.

 

ARC makes the best IC's for JDM cars. They use strictly tube and fin design.
Unfortunately, they don't have any Porsche applications.
Here is how their S14 application looked like from the inside

 

Any track time with those? If yes, how long will it withstand without heat soaking?
Would you care to share some details? PM, if you don't wan't to go public....

 

I'll share a helpful website ................

http://horsepowercalculators.net/int...ler-calculator

 

sorry not yet, but I'm sure will work...