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Old 04-20-2011, 04:47 PM   #30 (permalink)
justjohn
EcoModding Apprentice
 
Join Date: Dec 2009
Location: Wisconsin
Posts: 233

Black Beauty - '13 Hyundai Elantra
Thanks: 71
Thanked 2 Times in 2 Posts
Quote:
Originally Posted by SentraSE-R View Post
It's impossible to see a CAI keeping rpms lower. Engines are coupled to tires by fixed gear ratios. If your engine spins 2200 rpm at 60 mph in top gear today, it's going to do it tomorrow, too. It's going to spin 2200 rpm at 60 mph climbing mountains in Alaska in the winter, or descending grades in Death Valley in the middle of August. GPH consumption and mpg will change, but rpms won't give you a clue to either.
Ah, this especially is the sort of thing I was wondering about. Thanks! If I get the car I will probably try a couple ABAB tests at some point.
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