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TbirdX · 03-31-2005, 09:47 AM

120:3 rad
3 x Xinrullian pushing 92 CFM
MCP600 @ 13.6V
Swiffy 6002
Fusion HL
All 1/2" (a little shy of 10ft of tubing all in)

running ... Res > Pump > Rad > CPC quick Connect > 6002 > HL > CPC quick connect > Res

The reason I mention the CPC connectors are because they are self sealing and so inhibit flow somewhat, don't know if thats a factor here or not...Anyway, onto the questions...

Running the fans at roughly half speed on my fan controller, is it fair to assume that half speed = half the rated airflow??

Either way, airflow is much reduced but when turning the fans up to full, the temps do not improve any, not even by a degree.
Now, I guess there must be a point at which no matter how much air you throw at a rad it won't go any lower, so am I at that point with the fans on the low setting??

I'm sure that flow rate, ambient temps and many other factors will affect that, I guess I'm also after an idiots explaination as to the relationships between these things, or a pointer to some articles.
Or am I missing something more fundamental here? Even my humble exos can dent the temps by 1 degree by turning the fans up to full.

03-31-2005, 09:47 AM	#1
TbirdX Cooling Neophyte Join Date: Feb 2005 Location: England Posts: 28	Radiators & Airflow 120:3 rad 3 x Xinrullian pushing 92 CFM MCP600 @ 13.6V Swiffy 6002 Fusion HL All 1/2" (a little shy of 10ft of tubing all in) running ... Res > Pump > Rad > CPC quick Connect > 6002 > HL > CPC quick connect > Res The reason I mention the CPC connectors are because they are self sealing and so inhibit flow somewhat, don't know if thats a factor here or not...Anyway, onto the questions... Running the fans at roughly half speed on my fan controller, is it fair to assume that half speed = half the rated airflow?? Either way, airflow is much reduced but when turning the fans up to full, the temps do not improve any, not even by a degree. Now, I guess there must be a point at which no matter how much air you throw at a rad it won't go any lower, so am I at that point with the fans on the low setting?? I'm sure that flow rate, ambient temps and many other factors will affect that, I guess I'm also after an idiots explaination as to the relationships between these things, or a pointer to some articles. Or am I missing something more fundamental here? Even my humble exos can dent the temps by 1 degree by turning the fans up to full.