[apk919]

Originally Posted by Smoky

time to decrease temp across speed per temp drop would make for some interesting comparisons. Looks like you have the data for it already (that was about a 40 min drive, if I read correctly). Plenty of stops/gos in there too. Those kind of comparisons would be good benchmarks for comparing differences in heatsoak/dissipation for other intercoolers.

At the end, was that just sitting at idle, where the speed=0 and the temp continues to rise?

Might I recommend you connect with Thomasio from rls? It would be great to throw his rls intercooler into the mix of your data collection. I think a lot of people would benefit from the knowledge of how changing the intercooler does/does not impact heat soak and charge temp.

And also, of course, to test Shoco's side-intake cooling kit. What a difference that would make for folks to see the end results of these kits.

One of the things that's hard to see in the graph is engine load... obviously when I'm accelerating the supercharger is working harder, increasing the flow and heat of the charge... I think you can clearly see some of that heat being transferred to the cooling air. At the end the engine was off, not idling... you can see the effect of the latent heat in the engine block without coolant circulation. What's displayed is about 15 minutes of data... the samples are spaced 2 seconds apart.

There are so many ways to take this study at this point... I'd like to exhaust the "fettling" first, since that's the simplest and cheapest mod to increase intercooler efficiency. After that, side scoop ducting, different intercoolers, etc. would be interesting routes to follow.

What I'd also like to do is get my datalogging OBD-II reader in the mix. Then I can log coolant temps, engine load, MAF sensor readings, etc. Lots more work to do...