OK...Same duration and LSA but different lift, what happens ???
03-09-2005, 04:32 PM
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OK...Same duration and LSA but different lift, what happens ??? Say you have two cams w/ the same durations and same LSA's but one cam has a higher lift than the other, what happens different between the two ??? Sorry for my stupidity, but I was just sitting here brainstorming...Zed
03-09-2005, 06:31 PM
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Originally Posted by Kurtomac
ok same durations same lsas but different lift what happens......the valve opens farther, thats what happens
Smart *** !!!
Zed
03-09-2005, 07:33 PM
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It would depend on the head flow. If the head could benifit from some extra flow it would be great...if it can't it would be merely a waste of time.
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03-09-2005, 07:45 PM
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The average amount the valve is open will be increased which (everything else being equal as you hypothesize) gives potential for more air to enter the cylinder. The area under the curve is increased like increased duration or more aggresive ramp rates. I do not think idle quality is affected as adversely as increasing duration. The cam is like the on off valve on a faucet in that if you open it further(increased lift) more water will flow in a given amount of time. More duration increases the length of time valve is open. That is a crude explanation but it sometimes helps to think of these things at a basic level.
03-09-2005, 07:46 PM
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more lift equals more torque - no?
03-09-2005, 07:55 PM
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A higher lift can make a small Cam have a "bigger" Cam power in the upper rpm range.Meaning the small Cam idle/drivability but the power of a bigger Cam.
Take a TR224 on 112 Cam (.565 or so lift)and compare it to a 220 on 112 Cam but have XER lobes with .600 lift.The 220 will make more power everywhere but idle/drive much tamer. Of course the 220 Cam would have to be ground just right to compare.
Take a TR224 on 112 Cam (.565 or so lift)and compare it to a 220 on 112 Cam but have XER lobes with .600 lift.The 220 will make more power everywhere but idle/drive much tamer. Of course the 220 Cam would have to be ground just right to compare.
