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Snow caps tried (940 and 240) then removed 200

uid 18083's pic
posted by  lucid on  Sun Jul 20 01:53 CST 2008
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last visit: Fri Oct 24 12:31 CST 2014
[RELATED]

Hi Ken,

Those are all nice mods, but with the cowl caps I sensed a noticeable reduction in the airflow at road speed (with fan off). It looks like the available air intake area is reduced by about 80% and (to me at least) IPD's customer-reported "ram effect" of the caps as scoops was non existent.

The 940 airflow is already much less than the 240's, nearly always requiring some fan assist and more frequent use of AC. And since the 940 already has a mesh screen (that had dropped down into the vent area), I'm much happier with the IPD cap removed. I was able to fish the mesh back up in place and held with 4 small, unobtrusive zip-ties.

On my daughter's '93 240, the reduced (unassisted) air flow was also apparent, when compared to her former '87 under the same driving conditions. So with most of her driving being at moderate speeds (on Martha's Vineyard), I took the caps off to eliminate the (new) need for the fan, and hopefully extend the blower motor life.





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