[s-cars] FMIC info digested...
D Cosby
dccosby at hotmail.com
Wed Nov 2 19:23:16 EST 2005
Interesting discussion. Glad that my custom intercooler is already built and
installed and the thinking is over. I don't want to throw myself in a debate
that's over my head, but from the FAQ on Corky Bell's intercooler site:
http://www.bellintercoolers.com/pages/techFAQ.html#FAQ_8
Does one style core cool better than another?
No, almost no difference. With three decades of testing intercoolers, we
have found no appreciable difference between any core style or manufacturer.
Keep in mind, that the merit of a core is its efficiency versus its
internal drag characteristics. When sized for a tolerable flow loss,
virtually all cores will produce essentially the same efficiency results.
Perhaps a core with slightly less flow area per linear inch, or one with
longer tubes, will need perhaps 5% more tubes to equal the best of
intercoolers with regard to flow loss and efficiency. Not a very important
difference.
The only caveat he makes on bar and plate is it is more suited for highly
rugged 250+psi sppkining applications.
The whole FAQ is an interesting read if you have 30 minutes of work time to
kill.
So if I'm reading Corky right, it sounds like Corky is stating that the
standard engineering rule of thumb applies - the errors on both sides of the
equation cancel each other out - neither side is better or worse. So how you
read what Corky says versus the various manufacturer stated efficiency
ratings is anyone's guess but my money is on Corky.
Either way I run water injection on top of it all just to be safe. ...I seem
to remember being flamed for that idea 5 or 6 years ago when I installed
it... times have changed.
Dwayne
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