>It would be nice to see a true comparison and not just speculation<
Extruded tube has already been tested in a flow tunnel and came out whomping all over even the next generation of intercooler core technology, tube and fin. So, speculation is what you are saying about a stock core being more effecient than a flow tunnel proven bad boy. I can give atleast 5 reasons why it can not hold a candle, and did on another thread. The flow tunnel numbers do not lie.
And testing E.T. on cars is a horrible way to test atleast an intercooler. Good lord, there are way to many variables, one comes to mind,
60 ft on both runs?
Are they exactly the same?
If not, Houston we have a problem.
Just stick them in the oven at 350 degrees and lets see how that stock 15 row does with all that heat. Not real well I will tell you.
Would kevin mease put a bet on a flow tunnel test with 1987 technology verses extruded tube and fin? It has nothing to do with him but the product. Extruded tube would not be used in the major turbo diesel industry now if bar and plate was better.
You see, CAS has been flowing intercoolers for years now. You think if the old technology was so great he would not use it and save money? Extruded tube is expensive to tool on a machine, unlike bar and plate which is brazed together by people in mexico with sheet stocks.
Do not try to kill off vendors spending lots of money on new technology helping out the smallest turbo community out there to save $50 when it will not even compare anyways. As far as I am concerned, we are all lucky to have any vendor try to make better parts using the newest technology in this tiny market. Keep them coming as my old buick has tons of NEW improved parts on it to turn 10's all day long.