How much difference between 112 and 114 LSA
#1
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; 08-12-2010 at 07:00 PM.
#2
UNDER PRESSURE MOD
iTrader: (19)
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.
#4
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; 08-12-2010 at 08:52 PM.
#6
TECH Addict
iTrader: (11)
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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#11
The car will do the impressing, with or without me being involved. Its more for me I guess. Thanks guys
#14
TECH Fanatic
iTrader: (4)
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
#15
TECH Fanatic
iTrader: (1)
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.
#16
The cam I bought is a 228/228 with 112
228+228= 456
456/4=114
114-112=2
2x2=4 degrees of overlap. Is that right? IF so its way under the normal amount you gave me. Thank for the info.
228+228= 456
456/4=114
114-112=2
2x2=4 degrees of overlap. Is that right? IF so its way under the normal amount you gave me. Thank for the info.
#18
TECH Fanatic
iTrader: (1)
good luck
#19
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; 08-13-2010 at 04:01 PM.
#20
TECH Fanatic
iTrader: (1)
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.