224/224 vs. 224/228
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224/224 vs. 224/228 All else being identical...what are the different characteristics of a cam with the same intake/exhaust duration versus a cam with an extra 4 degrees of exhaust duration? Both are very common, and I was just curious what the benefits of one are over the other.
A few years back, cam designers noticed that they could get more power by increasing just the exhaust duration. There was an article I read about it in last year, but I've long since forgotten where that was...as well as the "whys."
Originally Posted by dbirdz06
All else being identical...what are the different characteristics of a cam with the same intake/exhaust duration versus a cam with an extra 4 degrees of exhaust duration? Both are very common, and I was just curious what the benefits of one are over the other.
Hammer
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Joined: Jul 2005
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From: NJ
Originally Posted by dbirdz06
All else being identical...what are the different characteristics of a cam with the same intake/exhaust duration versus a cam with an extra 4 degrees of exhaust duration? Both are very common, and I was just curious what the benefits of one are over the other.
I had a 220/220 and there is hardly a difference in idle.
