FMIC core thickness

[bmadd2402]

I ordered a FMIC the other day, and it was supposed to be 3 in thick core, but they sent 4 in thick. I have heard that an intercooler only cools for the first 2.5 in of thickness, so this wont help performance, but will it hinder it? Should I make an issue or just roll with the 4 in core?

[dekand]

thats retarded... an intercooler should cool with every inch of itself because all it is is a big heat sink... the heat goes from the intake air to the aluminum then from the aluminum to the outside air flowing to it... why would it only use the first 2.5 inches... whoever said that doesn't know what they are talking about ... its up to you tho... i would probably keep it as its going to allow more hp than the 3" one that you paid for.

[BoostFab]

I ordered a FMIC the other day, and it was supposed to be 3 in thick core, but they sent 4 in thick. I have heard that an intercooler only cools for the first 2.5 in of thickness, so this wont help performance, but will it hinder it? Should I make an issue or just roll with the 4 in core?

i would keep the 4" core....jsut think why HKS 4" core is obnoxiously high priced....it's plain more efficient.

i'll trade you for my 3" core if you want

[bmadd2402]

well, I could see, with the low heat retention of aluminum how the charge air could heat the cooling air and the coling air cools the charge air and the two equalize. I have heard that this equalization happens in the first 2.5 inches, and cooling efficency drops after that. but like you said, that would be pretty retarded for HKS to sell an expensive 4 in core. I mean the Japanese are like the epidomy of efficiency, right?

[SeVa-S13]

I mean the Japanese are like the epidomy of efficiency, right?

1.) Epitome.2.) Two words: "banzai charge"

[accel junky]

Core dimensions are important in determining pressure drop and charge cooling.

[Wulfgang]

There was a great article online a while back about intercoolers being more heatsinks than heat exchangers unless you're a road racer. Search for it on Google... they did some testing on a GTR.