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I run a 70% lower grill block year round without any problems. However, I found that I cannot block the gap between the bumper and hood as the temp. goes critical in short time. I have a red LED mounted in the dash, wired inline with the radiator cooling fan to tell me how often the fan has to kick in to lower temperature.
Also.
Do you have a engine blanket ???
A piece of corrugated cardboard cut to the full inside dimensions of the engine bay and laid on top should help warmup times. It's primary job however, is to retain heat in the engine bay when making multiple short trips in the same day. This helps to keep the engine out of open loop enrichment.
(credit to Frank Lee for cardboard blanket)
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Last edited by redneck; 11-14-2014 at 12:06 PM..
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