Cam Info
08-19-2009, 07:54 PM
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Cam Info Ok I need some help with cams can some tell me what all the 228/228, .588"/.588" , 237/242, .603"/.609" mean it's it the sound,power idle?I'm so confused.Thanks
08-19-2009, 08:21 PM
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So what you are saying is that 228/228 is how the car is going to sound the exhaust? And the .588/.588 is just inside the engine?Or lets put it this way what number would you be looking for a really fast cam? and what numbers would you be looking at for a slow big idle cam?
08-19-2009, 08:30 PM
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08-19-2009, 08:45 PM
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The intake/exhaust numbers basically means that the larger those numbers are, the more power you're going to get in the UPPER RPM range. The lower the number, the more power down low. 228 would be considered mild/moderate, while 237/242 would be considered moderate/extreme. 228 will make more power in the midrange, while the 237 cam will make more power up top near 7k and beyond.
The lobe separation determines basically the power band length. larger lsa = larger power band, lower LSA = shorter power band.
Hope this helps.
The lobe separation determines basically the power band length. larger lsa = larger power band, lower LSA = shorter power band.
Hope this helps.
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08-19-2009, 09:04 PM
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The intake/exhaust numbers basically means that the larger those numbers are, the more power you're going to get in the UPPER RPM range. The lower the number, the more power down low. 228 would be considered mild/moderate, while 237/242 would be considered moderate/extreme. 228 will make more power in the midrange, while the 237 cam will make more power up top near 7k and beyond.
The lobe separation determines basically the power band length. larger lsa = larger power band, lower LSA = shorter power band.
Hope this helps.
The lobe separation determines basically the power band length. larger lsa = larger power band, lower LSA = shorter power band.
Hope this helps.
08-19-2009, 09:06 PM
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So what you are saying is that 228/228 is how the car is going to sound the exhaust? And the .588/.588 is just inside the engine?Or lets put it this way what number would you be looking for a really fast cam? and what numbers would you be looking at for a slow big idle cam?
EDIT: the post above mine that u quoted explains the lsa alot better lol
08-19-2009, 09:07 PM
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The intake/exhaust numbers basically means that the larger those numbers are, the more power you're going to get in the UPPER RPM range. The lower the number, the more power down low. 228 would be considered mild/moderate, while 237/242 would be considered moderate/extreme. 228 will make more power in the midrange, while the 237 cam will make more power up top near 7k and beyond.
The lobe separation determines basically the power band length. larger lsa = larger power band, lower LSA = shorter power band.
Hope this helps.
The lobe separation determines basically the power band length. larger lsa = larger power band, lower LSA = shorter power band.
Hope this helps.
08-19-2009, 09:38 PM
#14
The intake/exhaust numbers basically means that the larger those numbers are, the more power you're going to get in the UPPER RPM range. The lower the number, the more power down low. 228 would be considered mild/moderate, while 237/242 would be considered moderate/extreme. 228 will make more power in the midrange, while the 237 cam will make more power up top near 7k and beyond.
The lobe separation determines basically the power band length. larger lsa = larger power band, lower LSA = shorter power band.
Hope this helps.
The lobe separation determines basically the power band length. larger lsa = larger power band, lower LSA = shorter power band.
Hope this helps.
Now that you have a basic understanding re-read the internal engine stickies and maybe you will start to get some of the things that are goin on with cams. Its hard, but the easiest way to "basically" explain it is the lower all the numbers are the more low end punch the cam will have and the more friendly it will be for street driving and emissions, except the lobe seperation its opposite the bigger number there is more friendly, the bigger the numbers the more it will want to be revved up and be stronger on the top end of the RPM range. The chop "generally" comes from the LSA, but is actually a product of overlap, which is a product of duration and lobe seperation angle. the more the lobes keep the exhaust valve and intake valve open at the same time the more chop
Lastly and most importantly..... what are those wheels on your car in your sig pic?
08-20-2009, 05:31 PM
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To the original poster the above is a very good basic explanation ( you are asking generic questions about the most complex part of the engine so much to learn about cams, even for me and I have a firm understanding ), the 598 part is actually the length that the valve is extended when opened/or how far it is opened.
Now that you have a basic understanding re-read the internal engine stickies and maybe you will start to get some of the things that are goin on with cams. Its hard, but the easiest way to "basically" explain it is the lower all the numbers are the more low end punch the cam will have and the more friendly it will be for street driving and emissions, except the lobe seperation its opposite the bigger number there is more friendly, the bigger the numbers the more it will want to be revved up and be stronger on the top end of the RPM range. The chop "generally" comes from the LSA, but is actually a product of overlap, which is a product of duration and lobe seperation angle. the more the lobes keep the exhaust valve and intake valve open at the same time the more chop
Lastly and most importantly..... what are those wheels on your car in your sig pic?
Now that you have a basic understanding re-read the internal engine stickies and maybe you will start to get some of the things that are goin on with cams. Its hard, but the easiest way to "basically" explain it is the lower all the numbers are the more low end punch the cam will have and the more friendly it will be for street driving and emissions, except the lobe seperation its opposite the bigger number there is more friendly, the bigger the numbers the more it will want to be revved up and be stronger on the top end of the RPM range. The chop "generally" comes from the LSA, but is actually a product of overlap, which is a product of duration and lobe seperation angle. the more the lobes keep the exhaust valve and intake valve open at the same time the more chop
Lastly and most importantly..... what are those wheels on your car in your sig pic?
