What do you know about cooling ducting?
#22
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http://forum.miata.net/vb/showthread...72#post4624172
here is a great thread where everyone clamors for fans rather than ducting, lol.
here is a great thread where everyone clamors for fans rather than ducting, lol.
#23
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http://forum.miata.net/vb/showthread...72#post4624172
here is a great thread where everyone clamors for fans rather than ducting, lol.
here is a great thread where everyone clamors for fans rather than ducting, lol.
#24
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I only read the last page. It was interesting. A cooling fan shroud is great when you have fans that can't pull enough air to cool the coolant. My two 2200 or 2400 cfm fans bring my temp down by like 10* with a quickness with no shroud. I think a shroud would **** up the airflow when driving unless there were many flaps.
#25
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I only read the last page. It was interesting. A cooling fan shroud is great when you have fans that can't pull enough air to cool the coolant. My two 2200 or 2400 cfm fans bring my temp down by like 10* with a quickness with no shroud. I think a shroud would **** up the airflow when driving unless there were many flaps.
#32
As an example the same sort of thing happens with throttle body sizing on turbo versus positive displacement super chargers. A restrictive throttle body with a turbo blowing through it doesn’t make much difference the same restrictive throttle body with a super charger sucking through it makes a huge difference.
Bob
#37
I doubled the inlet size of the duct in the aluminum one vs the plastic factory piece, and sealed it around the IC core using HVAC tape. I opened up the hole in the bumper cover accordingly, and overall it cooled much better. I did not make any before/after temp comparisons, as the IAT in a DSM is in the MAS, but to the touch it was vastly cooler.
I figured if I could essentially make a huge hole/duct in a high pressure area (ie: on the front of the bumper cover), that it would increase the pressure on the front side of the IC core and more air would have to move through it...not really any more complicated thought behind it than that. Sure, the air is going to back up in the duct and probably create some unpleasant aero side effects at that corner of the car, but I didn't notice anything untoward while racing around the mountains here.
I figured if I could essentially make a huge hole/duct in a high pressure area (ie: on the front of the bumper cover), that it would increase the pressure on the front side of the IC core and more air would have to move through it...not really any more complicated thought behind it than that. Sure, the air is going to back up in the duct and probably create some unpleasant aero side effects at that corner of the car, but I didn't notice anything untoward while racing around the mountains here.
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