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How does a grille block improve warmup time?
I've been reading about the benefits of adding a grille block. The two advantages I see mentioned are improved aerodynamics and decreased engine warmup time. The first makes sense to me (air flows around the car instead of through the grille and radiator into the engine bay), but I don't quite follow the second. Obviously cold air entering the engine bay will affect the engine temperature to some extent, but is it really a significant amount? It seems to me an engine working to propel a 2,000+ lb vehicle isn't going to be affected much by a little cold air on it's relatively small surface area.
- fanamingo
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