Quote:
Originally posted by silverc4s
Randy,
I do recall reading that the drive system for the flat fan was quite complex, but isn't the main purpose to provide more evenly distributed airflow across the cylinders/heads, therefore permitting higher hp/cylinder of output?
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That's right. I happened to be reading the chapter on the '74 RSR Turbo the other day (Excellence was Expected) and this is the first time they used the flat fan setup on a 911-derived motor. Cylinders/heads 3 and 6 weren't getting enough cooling using the regular fan.