How much difference between 112 and 114 LSA
Thread Starter
Staging Lane
Joined: Mar 2010
Posts: 69
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How much difference between 112 and 114 LSA I ordered a 228r cam with a lsa of 112 on monday so that I could install it and the motor in the car this weekend. Well a mistake was made(it happens) and I was shipped a 228 114 instead. Its killing me and I want to put the motor in this weekend. How much of a difference between the two? This car will never see a track or a strip but will one sound better than the other and will there be a performance difference. I want a noticeable lope.
Ls1
Ls6 intake
Ls6 heads
.040 heads gaskets for around 11:1 comp
Ls1
Ls6 intake
Ls6 heads
.040 heads gaskets for around 11:1 comp
Last edited by Kris Mangrum; Aug 12, 2010 at 07:00 PM.
If you want lope, then unplug a coil pack wire. If you are concerned about how it sounds, then change the exhaust setup. A cam selection should be based on engine performance, not sound or lope.
Sorry, but picking a cam based on how it sounds or lopes is just stupid. If you're worried about how it will impact drivability or power, you probably would have a hard time telling the difference between the two except for on a dyno.
Sorry, but picking a cam based on how it sounds or lopes is just stupid. If you're worried about how it will impact drivability or power, you probably would have a hard time telling the difference between the two except for on a dyno.
it will move the powerband slightly.. you will still have a lope
https://ls1tech.com/forums/generatio...s-114-lsa.html
scroll down to matt's post if that doesnt show ya
https://ls1tech.com/forums/generatio...s-114-lsa.html
scroll down to matt's post if that doesnt show ya
Last edited by 89 formula350; Aug 12, 2010 at 08:52 PM.
I got a 228r on a 114 & its got a nice lope to it, my powerband isnt much different than the 112 cam is. The 114 is supposed to be smoother idle but its not as smooth as I thought it would be. Its a great cam with a fairly wide powerband. If you really think you gotta have the 112 then wait it out but the difference in powerbands is very little.
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It will also have an effect on PTV. Like stated above, pick a cam for the best performance for your car not for a lopey idle or sound. Put in a toggle switch and kill an injector or coil when you think you want to impress people with the idle.
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You could always drop the idle 50-100rpms to make it lope a little more. Mine has a nice chop to it, sounds like you made your mind up and want a 112 but are too impatient to wait.
Thread Starter
Staging Lane
Joined: Mar 2010
Posts: 69
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The car will do the impressing, with or without me being involved. Its more for me I guess. Thanks guys
it will move the powerband slightly.. you will still have a lope
https://ls1tech.com/forums/generatio...s-114-lsa.html
scroll down to matt's post if that doesnt show ya
https://ls1tech.com/forums/generatio...s-114-lsa.html
scroll down to matt's post if that doesnt show ya
Look into overlap. This is what determines what you call lope. Lowering your LSA just adds overlap, and makes the power band a little peakier. With an even split cam with those specs, the deference between 112 and 114 won't be noticable. If you want a big lope, you want a big split cam.
Easy way to determine overlap is
int+exh lobe
what that equals to divide by 4 minus LSA and then X2. What ever that equal is going to give you your degrees of over lap.
Most off the shelf cams have an average of 14* to 16* of overlap specially for N/A application. Positive over lap will give you lope, negative overlap will not. FI cams have small lobes and are set between a 115-117 LSA Most FI cams will give you negative *s of overlap and 0 lope. That is the reason if lope is that important to go with a cam with an LSA between 110 - 112 and bigger lobes (ie 22X/23X or 23X/24X) The Comp 23X/23X series are great for that.
good luck
Staging Lane
Joined: Jan 2010
Posts: 68
Likes: 0
Good to know info 
Now that explains why I can get this puppy to idle better than I expected. If my math is correct I have -5 degrees of overlap. So is that to say I have no overlap with 5 degrees of seperation between the lobes? Either way I like it and still have plenty of power.
Now that explains why I can get this puppy to idle better than I expected. If my math is correct I have -5 degrees of overlap. So is that to say I have no overlap with 5 degrees of seperation between the lobes? Either way I like it and still have plenty of power.
Last edited by MikeZ06402; Aug 13, 2010 at 04:01 PM.
Good to know info
Now that explains why I can get this puppy to idle better than I expected. If my math is correct I have -5 degrees of overlap. So is that to say I have no overlap with 5 degrees of seperation between the lobes? Either way I like it and still have plenty of power.
Now that explains why I can get this puppy to idle better than I expected. If my math is correct I have -5 degrees of overlap. So is that to say I have no overlap with 5 degrees of seperation between the lobes? Either way I like it and still have plenty of power.
