Originally Posted by TTdude

Hi Can, It was explained to me that even though the 4.5" was an excellent cooler and many high power 996ts have them, the 5" was the new design boasting greater efficiency in flow and cooling (I don't have any hard data of my own). The 5" is a tight fit and I'm not sure you could fit a larger one very easily. As far as boost goes, my understanding is bascially what you wrote, that these ICs will reach max boost at about 800 rpm quicker than stock. I also wanted a pair of ICs that wouldn't be limited by 600 whp which I understand some aftermarket ones are. If you are interested in a set and more specific details, you can also contact Todd K. He'll give you the straight poop. Dave

Originally Posted by Casey@TPCRacing

Before we had the 127mm core we used a close to the off the shelf 4.5" core that was made by bell, Keep in mind that there are many more variables than IC thickness, such as # of rows, style of intercooler(bar-plate, tube-fin)...

We changed to our hybrid cores for the numerous reasons that I have mentioned previously in these forums.

I spoke with mike regarding your question on the pressure drop of our 127mm core vs the stock cooler and there are many variables to take into account... In the end it really would come down to a 3D graph showing many different variables. He invited you to call the shop and speak with him directly. I wont lie to you and tell you I know everything about intercoolers, I dont. But he does and if you want an education, he is your man. Or if you would like to do some studying, buy "maximum boost" by corky bell... Great read.

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