- Banned
- #31
Seeing an IAT drop of Xº is nice but it is also a measurement in isolation. You really want to see ambient, pre IC, post IC and IAT. Same day, same ambient temps, same humidity but one run facing head winds vs another run with tail winds will skew your data. Regarding the oft asked heat soak question; that's almost meaningless when looking at 20 - 80MPH runs. Any IC worth beans is rapidly dumping heat at 20MPH. Like Squatch said you need to flog it hard to really heat soak the IC. Or sit in traffic on a hot day. You'll get enough heat soak for sure. Ideally you want identical conditions for every test. Also keep in mind, a larger IC has more thermal mass so when it is soaked it'll take longer to cool than a smaller, similarly designed IC. You can't make the blanket statement that larger is better. You also need to include charge velocity. Poor charge velocity definitely shows up in off idle conditions. For me average temp drop across the IC core trending upwards is good. An improved design can be as effective as or more so than just Bigger. I don't and never will rock crawl but that looks to be pretty darned close to "stuck in traffic" regarding air flow. A bigger IC isn't going to help much if at all under those conditions. I"m guessing. My 2¢
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