Quote:
Originally Posted by me and my metro
I would leave the upper and open the lower a little bit. Kind of like the cup cars do. The uppers are blocked and they adjust the lower with tap to get the temp they want.
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Had I seen this before cutting, I might have started there... However, I opened a 1.5" by 19" rectangular hole in the lower half of the upper grille block and went to work last night... The trip started with a cold engine, but I did make it fourteen miles or so before the engine got uncomfortably hot and I had to take the upper back off... Trip average was 38.0mpg indicated, still not bad all considering... This gives me some insight into the FE benefit of a block heater...
I plan on opening the existing hole in the upper slightly and trying again, as the temp climb from 195 to 210 was way slower than before, so I might only need one more revision to the upper to stabilize the running temp between 200 and 210 degrees(my goal)