Wow thanks to all your responses and ideas!
I think before I further investigate this, I will go to the extreme and just
tape up the whole front of the car including all the little gaps around the
lights,bumper,grill,hood ONLY for a few comparative high speed coast down tests.
If I can't show any considerable measurable difference going to the extreme,I will not risk overheating with grill blocks. I've done a LOWER grill block on my truck once and it over heated on me which was surprising because I thought
as long as the top grill is open where the real heat is I can't get in trouble...
( WRONG! )
Bicycle Bob hinted about the lack of effectiveness using tubes attached to
aluminum under belly plate etc. Come to think of it on SUVs and vans with
rear a/c and heat,there are these long aluminum lines going from the front to all the way in the rear to the heater and evaporator cores and the manufacturers don't even bother insulating them yet they still function so
that's a pretty good indicator what a tremendous amount of heat is being created by the engine and how good an actual radiator is really that it can handle getting rid of all the excess!
I like the hood idea as well! Could double as a large frying pan too! Go camping,crack a few eggs on the hood...throw a wet T-shirt on it to dry in seconds
