Quote:
Originally Posted by 99LeCouch
That jibes with the experiences in my Buick. With a full grille block my engine temperatures were 188-190*F. The fans were reprogrammed to come on at 186*F. Removing 1/4 of the block let the engine stay below 186*F. My IAT's also came down since I hacked up my airbox to serve as a WAI in the winter, and it was working too well in that fashion.
It looks like big pushrod V6's and V8's don't benefit as much from these mods as much as a smaller OHC I-4 does.
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Most of it depends on HOW hot you're getting, and where your engine starts putting in more fuel or removing timing in order to help the overheating engine. Either way is bad for fuel economy. But yes, a 4 banger without a turbo or a hot cam or anything will be in a lighter car with less stress to begin with, which is why they can get away with more.
My truck on the other hand, with a MONSTER grill, and even a scoop in the lower grill to channel MORE air was above the 220 mark and on it's way to the RED ZONE just sitting in traffic with the AC and the HAI. I'd like to design a grille block, but it's just not feasable in this weather. Thus the experiment with the CAI
So far, a small increase. I'll probably mess with switching it back and forth with and without the shield.
either way, I"ll be designing it a bit better and making a more secure solution. Yet, make it removable for winter.