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chuckybob
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the only thing i know about cams is that if they dont sound like a galloping horse at idle, youre doing it wrong

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Originally Posted by [H]ard|On View Post
Drop it ON sander's saturn.

waste of an LS1
Old 12-25-2009, 09:19 PM chuckybob is offline  
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SomeoneWhoIsntMe
 
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Originally Posted by lopoetve View Post
Yeah, I am - I can't afford to do all that and the engine this time around. If I decide to go that route in the future, I'll have a second engine to do it on.

You could, but the question returns about emissions and stuff - and MAF, etc taht I have to have.
Ah, it's a MAF car? That makes it a little bit more difficult. I know that you can reflash the stock ECU's on GM cars, would you be able to change the MAF scaling?

If so, you could throw the MAF on one airbox and rescale accordingly, then route the PCV and whatnot to the other one.

8000 RPM LS1 would be worthy. I say keep the rod ratio reasonable so it can still spin and get a hot enough cam to make power up there. It's a fucking 6+ liter V8, it'll have plenty of torque no matter what you do.

Last edited by SomeoneWhoIsntMe; 12-25-2009 at 10:03 PM..
Old 12-25-2009, 09:56 PM SomeoneWhoIsntMe is offline  
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#17  

SmashingPumpkins
 
look at cams

look at the nastiest one you'd consider getting

back off one step
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Old 12-25-2009, 10:42 PM SmashingPumpkins is offline  
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lopoetve
 
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With enough time and money: yes. They've stuffed V8's in bikes. It'll fit in a car...

Excellent.

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Originally Posted by chuckybob View Post
the only thing i know about cams is that if they dont sound like a galloping horse at idle, youre doing it wrong



waste of an LS1

Can't go that far. Emissions.

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Originally Posted by SomeoneWhoIsntMe View Post
Ah, it's a MAF car? That makes it a little bit more difficult. I know that you can reflash the stock ECU's on GM cars, would you be able to change the MAF scaling?

If so, you could throw the MAF on one airbox and rescale accordingly, then route the PCV and whatnot to the other one.

8000 RPM LS1 would be worthy. I say keep the rod ratio reasonable so it can still spin and get a hot enough cam to make power up there. It's a fucking 6+ liter V8, it'll have plenty of torque no matter what you do.

Yes, you can - I don't know if you can scale it ~that~ far but yes, you could.

Rod ratio? That's a term I haven't heard yet.

The cam profile required to get power at that RPM really does cut power down low
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Old 12-26-2009, 07:01 AM lopoetve is offline  
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lopoetve
 
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Originally Posted by SmashingPumpkins View Post
look at cams

look at the nastiest one you'd consider getting

back off one step

That's just it - there isn't one I'd consider getting yet. There are literally a million of them, not including custom grinds.
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Old 12-26-2009, 07:01 AM lopoetve is offline  
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SomeoneWhoIsntMe
 
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Originally Posted by lopoetve View Post
Excellent.



Can't go that far. Emissions.



Yes, you can - I don't know if you can scale it ~that~ far but yes, you could.

Rod ratio? That's a term I haven't heard yet.

The cam profile required to get power at that RPM really does cut power down low
Really good explanation I found: link

basically, if you're building a stroker motor, pay attention to what the rod ratio becomes with the longer stroke, or the motor won't rev
Old 12-26-2009, 10:43 AM SomeoneWhoIsntMe is offline  
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GhEttOrAiD
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How about this idea:




In terms of the Firebird, how about this mod:


I agree
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Old 12-26-2009, 11:47 AM GhEttOrAiD is offline  
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#22  

SmashingPumpkins
 
well, what EXACTLY do you want it to do?

how high do you want it to rev?
where do you want the power to be?
what's the ultimate goal of the engine?
are you using hardened valve springs or double valve springs?
etc
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Old 12-26-2009, 12:03 PM SmashingPumpkins is offline  
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#23  

lopoetve
 
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well, what EXACTLY do you want it to do?

how high do you want it to rev?
where do you want the power to be?
what's the ultimate goal of the engine?
are you using hardened valve springs or double valve springs?
etc

Make more power.

High? As high as it is now is fine. I've never understood the need of having it rev higher. Higher revs just means more wear and more stuff breaking, imho - it's a small block chevy, not a ferrari.
Power - middle of the powerband. If I wanted peaky, I'd buy a honda. Stompy. TORQUE
Make more power than it has now.
Double is what most of the heads come with by default. Hardened take a lot longer to warm up.

I want a stompy torque engine. Something that yanks hard when you ask it to.
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Old 12-26-2009, 01:42 PM lopoetve is offline  
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#24  

[H]ard|On
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A high revving cross-plane v8 is possible for sure but not really needed when you're working with 5+L of insides to fill. He can meet his power goals WITHOUT having to rev high, so what would be the point?

For picking a cam you've come to the wrong place. Just hang out at LS1 centric forums and see what kind of power people make with what mods and look at some dyno s, listen to some utube videos.
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Old 12-26-2009, 02:35 PM [H]ard|On is offline  
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#25  

lopoetve
 
Problem is, they all go for the nastiest cam possible

And I hate how almost all of them sound on youtube too. They all sound so different in person
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Old 12-26-2009, 10:00 PM lopoetve is offline  
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#26  

[H]ard|On
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True you never know.

Well you can at least narrow it down to a few popular choices.. that aren't too wild
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Old 12-27-2009, 12:26 AM [H]ard|On is offline  
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