Quote:
Originally Posted by Big Tom
Definitely caused by ETS staggered internal fins.
|
There are many other things to consider when making a blanket statement like this...some other things that affect pressure drop(in the intercooler) are inlet outlet size and shape,endtank shape, core size and entry(flat or rounded entry) fin density and type(ie your single fin pack at 10fpi will have similar restriction to a staggered fin pack at 5fpi. On that subject an intercoolers job is to cool the air charge adequately with as little restriction as necessary to do the job AND be able to do this for multiple gear pulls. Its a balance in design when building the custom unit ie a larger core can have a higher density/staggered fin pack and still have low pressure drop, this higher density also increases the units thermal mass and allows it to thwart heatsoak for a longer period of time. when we were prototyping/designing the helix intercooler we tested several different cores in regards to fin density/type and charge and ambient tube height.