L92 cam recomendation
01-05-2009, 02:01 PM
#22
01-05-2009, 02:02 PM
#23
I am mainly looking for a bumpstick that will make descent power N/A with a 150 shot on occasions. Its got to have a nasty lope and not have any PTV issues on an LS2 with flat tops. The L92 are stock for now and I will be having a ported L76 intake. So basically a stock LS2 with L92 and the basic bolt-ons. I'm trying to see what's working for people doing the L92 head swaps.
01-05-2009, 02:43 PM
#25
Yes.
This has kind of turned into a project/pet peeve of mine. So many people ask about what cam for L92 heads. So many people giving so many opinions as to what L92 heads like (most of these people don't even drive cars with L92 heads on them). When I did my swap I was told by many "experts" my cam was all wrong. That L92s like this big split etc etc.
I see so many threads that start off with "just got done doing the L92 swap on my car and such and such spec'd out an L92 specific cam for me and I am disappointed with the results".
So I took the time to do the research, gather all of the FACTS, and let the results speak for themselves.
Once again the list, like what the op wanted, is just a list of 364ci motors with L92 heads on them. No strokers.
This has kind of turned into a project/pet peeve of mine. So many people ask about what cam for L92 heads. So many people giving so many opinions as to what L92 heads like (most of these people don't even drive cars with L92 heads on them). When I did my swap I was told by many "experts" my cam was all wrong. That L92s like this big split etc etc.
I see so many threads that start off with "just got done doing the L92 swap on my car and such and such spec'd out an L92 specific cam for me and I am disappointed with the results".
So I took the time to do the research, gather all of the FACTS, and let the results speak for themselves.
Once again the list, like what the op wanted, is just a list of 364ci motors with L92 heads on them. No strokers.
01-05-2009, 02:48 PM
#27
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Yes.
This has kind of turned into a project/pet peeve of mine. So many people ask about what cam for L92 heads. So many people giving so many opinions as to what L92 heads like (most of these people don't even drive cars with L92 heads on them). When I did my swap I was told by many "experts" my cam was all wrong. That L92s like this big split etc etc.
I see so many threads that start off with "just got done doing the L92 swap on my car and such and such spec'd out an L92 specific cam for me and I am disappointed with the results".
So I took the time to do the research, gather all of the FACTS, and let the results speak for themselves.
Once again the list, like what the op wanted, is just a list of 364ci motors with L92 heads on them. No strokers.
This has kind of turned into a project/pet peeve of mine. So many people ask about what cam for L92 heads. So many people giving so many opinions as to what L92 heads like (most of these people don't even drive cars with L92 heads on them). When I did my swap I was told by many "experts" my cam was all wrong. That L92s like this big split etc etc.
I see so many threads that start off with "just got done doing the L92 swap on my car and such and such spec'd out an L92 specific cam for me and I am disappointed with the results".
So I took the time to do the research, gather all of the FACTS, and let the results speak for themselves.
Once again the list, like what the op wanted, is just a list of 364ci motors with L92 heads on them. No strokers.
My cam has a similar split to the vaulted G6x3 but wider LSA and 8 degrees less duration. I'm making dick power and I don't know why.
01-05-2009, 04:33 PM
#28
TECH Fanatic
I'm in the same boat but I had to complicate matters by building a sheet metal intake. I'm seriously considering selling the intake and getting an L76 so at least I'm on the same plane as everyone else.
My cam has a similar split to the vaulted G6x3 but wider LSA and 8 degrees less duration. I'm making dick power and I don't know why.
My cam has a similar split to the vaulted G6x3 but wider LSA and 8 degrees less duration. I'm making dick power and I don't know why.
Perhaps the cam was not chosen to fit the intake and heads. Did whoever speced the cam know about the intake runner length, taper, head flow, etc. as well as all of the rest of the engine specs? If he/she didn't perhaps you need to rethink who should do your cams.
Jon
01-05-2009, 04:49 PM
#30
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Perhaps the cam was not chosen to fit the intake and heads. Did whoever speced the cam know about the intake runner length, taper, head flow, etc. as well as all of the rest of the engine specs? If he/she didn't perhaps you need to rethink who should do your cams.
Jon
Jon
01-05-2009, 08:22 PM
#31
01-05-2009, 08:56 PM
#33
TECH Fanatic
I wouldn't toss the SM intake just yet. Perhaps you could find a cam person who takes a scientific approach to choosing valve events rather than just guessing. I believe they are a very small minority, but they are essential when an engine is off the beaten track as would be a SM manifold with different runner length from stock.
The engine doesn't "guess" about what it wants/needs to make power, so neither should the person who picks the valve events.
I don't do cams but I did drive by a Holiday Inn Express over the weekend.
My $.02.
Jon
01-05-2009, 09:11 PM
#34
You have proven that on a turbo motor at least; the small split is the way to go. Here's a question for you guys, these heads flow well past .650" lift, maybe .700" before they go stagnant, so why aren't there more (any?) .650"+ lift cams yet? Is it spring selection? hydraulic lifter unable to handle the spring pressure for a .650"+ cam?? Where does one draw the line spring pressure wise or lift wise between hydraulic and solid lifters?
01-05-2009, 09:14 PM
#35
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It was a combination of both for me. It's a street car and I don't want to change valvesprings every year. I also don't want to run (buy) solids when the LS7s are so cheap.
01-05-2009, 09:17 PM
#36
You have proven that on a turbo motor at least; the small split is the way to go. Here's a question for you guys, these heads flow well past .650" lift, maybe .700" before they go stagnant, so why aren't there more (any?) .650"+ lift cams yet? Is it spring selection? hydraulic lifter unable to handle the spring pressure for a .650"+ cam?? Where does one draw the line spring pressure wise or lift wise between hydraulic and solid lifters?
01-05-2009, 09:32 PM
#37
I'm in the same boat but I had to complicate matters by building a sheet metal intake. I'm seriously considering selling the intake and getting an L76 so at least I'm on the same plane as everyone else.
My cam has a similar split to the vaulted G6x3 but wider LSA and 8 degrees less duration. I'm making dick power and I don't know why.
My cam has a similar split to the vaulted G6x3 but wider LSA and 8 degrees less duration. I'm making dick power and I don't know why.
01-05-2009, 09:35 PM
#38
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Runners are about 5.25", non tapered, cross section the size of the stock port with the negative lip at the top removed. I'd appreciate any input I can get on this.
01-05-2009, 09:48 PM
#39
With the cam that's in it, you'll do better with the L76. It will make much better low end and mid range. The short runners on the small motor will make no low end, weak mid range, and only make good power up top if you spin the beegeebeees out of it. With a big *** cam that can spin that high. And valve train that can keep up.
01-05-2009, 09:55 PM
#40
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With the cam that's in it, you'll do better with the L76. It will make much better low end and mid range. The short runners on the small motor will make no low end, weak mid range, and only make good power up top if you spin the beegeebeees out of it. With a big *** cam that can spin that high. And valve train that can keep up.
I should probably stop hijacking the thread and let some other people chime in.
There's such a wide range of cams being run with similar combos it's crazy.