| Just for speeding the process up changing everything out between runs. We are blowing basically same amount of air across the face of each unit from equal distances with "squirrel cage" blowers. As long as we are doing all the tests the same way, I don't feel the ducts are needed for our purposes of comparing heat exchange and flow characteristics. They might actually complicate the comparisons.
Russell Floyd Z1 Motorsports www.300zx.com 1990+ Nissan Z specialists Used Parts, New parts, Service/Repair and Performance 2877 Carrollton Villa Rica Hwy Carrollton, Ga 30116 770-838-7777 770-832-9253 (fax) 
|