[AmuroRay]

Originally Posted by kabootarman

Its almost 30°C (86°F) today! Canada is warming up. But it varies a lot in my region, between -40 to +35 C (-40 to +95 F), depending on the season.

It's almost a 20 degrees (Fahrenheit) IAT rise in a single gear pull, it's not going to survive stage 2 very well with those temps.

Don't take my word for it, check the thread I posted. The test car went from 80-100F in a single gear at 69F. With that intercooler, if you're at 86F today, you're going to be at the absolute limit in one pull if you're lucky.

https://f87.bimmerpost.com/forums/sh...&postcount=809

Originally Posted by Dasnub

MAD 5” intercooler and chargepipe, Stage 1 93 Bootmod3 logs in Sport+. 69F ambient. IATs still rise similarly to stock tune logs I posted but recovery time is excellent. I ran the logs a bit longer so people can see the return back to starting IAT. Generally temps were back down to original IATs within a minute or so on the freeway and about 10 degrees over ambient.

Overall I think it’s a solid choice for a stage 1 DD in a cool to moderate climate. I am satisfied with the results given my driving style and climate. The 20ish degree rise in IATs during the pull is probably not what you want if it’s consistently 90+ degrees outside. Same thing if you’re running on track- the increasing temps on throttle are probably more than you’d want. However, If you’re juicing it every couple minutes through a gear or two, it brings you back to an almost even starting point after a short period. I’m not sure what the recovery looks like on larger ICs or those with higher fin density, but my guess based on sheer physics is that the MAD unit is probably recovering more quickly than them, making it a better DD option. Additional lag over the stock IC is not noticeable.

Run 1
https://www.bootmod3.net/log?id=60b7...729b0c51245fef

IAT rises from 72 to 98. Recovers to 81 within seconds off throttle. Recovers to 75 within a minute.

Run 2
https://www.bootmod3.net/log?id=60b7...90c6105d476a45

IAT rises from 80 to 100. Recovers within seconds to 90. Back to 80 within a minute.

Run 3
https://www.bootmod3.net/log?id=60b7...90c6105d476a49

IAT rises from 80 to 102. Recovers within seconds to 91. Recovers to 80 within a minute.

Run 4
https://www.bootmod3.net/log?id=60b7...90c60fd5b8e4cd

IAT rises from 80 to 103. Recovers to 91 within seconds. Recovers to 80 within a minute.