Getting serious about the heat

MDORPHN

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Jan 28, 2018
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Lots of heat management for the closed deck built N54 going into my 1M!
 

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MDORPHN

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Jan 28, 2018
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Mo' cooling.
 

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MDORPHN

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Jan 28, 2018
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Yep, Evo 3! We also slotted the crash beam and will be venting the bumper cover. Lots of other stuff, too.

Can't wait to get it on the track.

Neil
 

fmorelli

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Airflow management is the a big problem, especially with 1 series.

Filippo
 
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gmagnus7

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Dec 3, 2018
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Yep. We'll also be doing lots of ducting and will be adding a large Trackspec hood vent.

Neil
I've been wanting to install one of those. I imagined having one mounted with 3M body adhesive and then sanded/painted to look flush with the hood (without rivets) would look really sweet. Not a big fan of any of the aftermarket hoods.
 

houtan

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Nov 2, 2017
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Yep. We'll also be doing lots of ducting and will be adding a large Trackspec hood vent.

Neil
Just an FYI regarding hood vent.
This thread posted results on temp impact after good vent install and in his experience they made zero difference.

 

gmagnus7

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Dec 3, 2018
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Just an FYI regarding hood vent.
This thread posted results on temp impact after good vent install and in his experience they made zero difference.

Ehh... If I read that thread correctly: he was using stock DME coolant logic and trying to solve the heating problem with hardware only. He wasn't using MHD to target lower coolant temps (we have an electronically controlled water pump so that's actually a big deal). Those graphs are also slightly misleading as he only showed PEAK temps which don't really tell the whole story of where the temperatures are rising along the track or for how long. For example, if it stays cool for 95% of the track and only hits the peak temperature during the end of a long straight and lasts 2 seconds, then it's not THAT bad. Just my thoughts anyway. Also adding hood vents can possibly have additional benefits of reducing drag and slightly increasing down-force on the front end. To what degree this happens on these cars is unknown but I would imagine but the concept is pretty universal.
 
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MDORPHN

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Jan 28, 2018
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There is no doubt in my mind that the additional heat extraction will reduce underhood temps and improve cooling, including IATs.

Mind you, I'm running a single turbo (with around 600 whp depending on fuel/tune) on road race courses and am dealing with temps not seen on more "moderate" set-ups.

Neil
 
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houtan

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Nov 2, 2017
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Ehh... If I read that thread correctly: he was using stock DME coolant logic and trying to solve the heating problem with hardware only. He wasn't using MHD to target lower coolant temps (we have an electronically controlled water pump so that's actually a big deal). Those graphs are also slightly misleading as he only showed PEAK temps which don't really tell the whole story of where the temperatures are rising along the track or for how long. For example, if it stays cool for 95% of the track and only hits the peak temperature during the end of a long straight and lasts 2 seconds, then it's not THAT bad. Just my thoughts anyway. Also adding hood vents can possibly have additional benefits of reducing drag and slightly increasing down-force on the front end. To what degree this happens on these cars is unknown but I would imagine but the concept is pretty universal.
I don’t disagree. Just sharing information I have come across. That guy is pretty thorough so I read what he writes. I think they discuss some of your points later in the thread.