Quote:
Originally Posted by SouthArk370Z
Just got back from running the tattletale test. Removed the rear hood seal. Taped two pieces of twine (some fluorescent pink stuff I had hanging around, the stuff you see used on construction sites to hold a spirit level) to the back edge of the hood where the creases in the hood are and another to the wiper arm (centerline of car). Up to about 30-35 mph, they didn't move at all. Above that, they indicated that some air was going into the engine compartment.
But that may have just been turbulence. I parked and turned the A/C on to turn the radiator fan on. Engine was well warmed up (170F oil temp) but I could feel no heat coming from the rear of the hood. On inspection, I found the gap between the hood and the engine compartment is very small.
My conclusion is that removing the seal doesn't accomplish much, if anything. Off to put the seal back on.
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So it stands to reason that if we opened that gap up somehow we would be making matters worse as far as airflow is concerned? Thanks for actually testing it, too much of this is theory.