LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Sorry Guys, Another cam thread.

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Old Jan 14, 2006 | 09:58 AM
  #1  
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Sorry Guys, Another cam thread.

I already have 1.6rr's and LT4 springs /retainers/locks. I have also heard that 93-94's have hardended pushrods aleady. So I am looking at getting a cam. I want to keep my stock heads. This car is driven everyday as well. What would be better for me LT4 Hotcam or CC305?

I tried searching but everytime I do it, it just brings me to a blank page?

Thanks for any help.
Old Jan 14, 2006 | 11:51 AM
  #2  
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Re: Sorry Guys, Another cam thread.

Both cams are very similar, with the cc305 being a bit more docile because of slightly less overlap. The LT4 springs will not work with the cc305 though because of the higher lift.
Old Jan 14, 2006 | 01:26 PM
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Re: Sorry Guys, Another cam thread.

ok thanks
Old Jan 14, 2006 | 01:50 PM
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Re: Sorry Guys, Another cam thread.

I would upgrade the springs no matter which one you choose.
Old Jan 14, 2006 | 03:09 PM
  #5  
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Re: Sorry Guys, Another cam thread.

I was under the impression that the LT4 hot cam kit cam w/ or used LT4 springs? So I shouldnt use them? What do you recommend?
Old Jan 14, 2006 | 03:16 PM
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Re: Sorry Guys, Another cam thread.

combination motorsports sells a spring kit with everything you need for a good price. Go with the cc305 on a 112 lsa. Its a pretty nice all around cam that has a nice improvement over stock.
Old Jan 14, 2006 | 03:16 PM
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Re: Sorry Guys, Another cam thread.

The LT4 springs are border line for the hot cam. They work, but there are better options.
Old Jan 14, 2006 | 03:59 PM
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Re: Sorry Guys, Another cam thread.

Originally Posted by Jazsun
I was under the impression that the LT4 hot cam kit cam w/ or used LT4 springs? So I shouldnt use them? What do you recommend?
I like Comp stuff, so you could call their tech line and tell them the cam specs of whatever you choose, intended red line, etc and they will tell you what you need. I'm lazy and let the machine shop guys decided on and order what springs I need
Old Jan 14, 2006 | 05:39 PM
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Re: Sorry Guys, Another cam thread.

what does lsa mean? I havnt dug into the world of cams yet.
Old Jan 14, 2006 | 06:53 PM
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Re: Sorry Guys, Another cam thread.

LSA = Lope Seperation Angle...

If you are a virgin to that word, then PLEASE don't start thinking that a high LSA means good idle and good drivability, thats a very bad generality that you don't want to learn now and have to relearn later.

LSA is the amount of CAM degrees the intake and exhaust centerlines are from each other. Every other cam spec is in CRANK degrees.... that's why cam duations are over 180°

Bret
Old Jan 16, 2006 | 08:41 AM
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Re: Sorry Guys, Another cam thread.

Originally Posted by SStrokerAce
LSA = Lope Seperation Angle...
Definately off topic, but after reading from several sources about the subject through the years, as well as too many archived threads from both camps in this forum, I do not really understand how (or why) that term came into existance. I am not disputing that LSA represents 'lobe sepAration angle'. What I am questioning is why that term was substituted for LCA which represents 'lobe centerline angle'. Being quite aged, maybe I gravitate to outdated old guys like Ed I. and Harvey C. more than necessary. Maybe could consider it a flaw. Happy Marty's.

Beavers and virgins... starting to wonder.
Old Jan 16, 2006 | 10:18 AM
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Re: Sorry Guys, Another cam thread.

Originally Posted by FastZinTennessee
I like Comp stuff, so you could call their tech line and tell them the cam specs of whatever you choose, intended red line, etc and they will tell you what you need. I'm lazy and let the machine shop guys decided on and order what springs I need
That tech line is poor at best and Comps popularity is due more to their dealer network more than actual results.
Old Jan 16, 2006 | 12:02 PM
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Re: Sorry Guys, Another cam thread.

Originally Posted by A/G
Definately off topic, but after reading from several sources about the subject through the years, as well as too many archived threads from both camps in this forum, I do not really understand how (or why) that term came into existance. I am not disputing that LSA represents 'lobe sepAration angle'. What I am questioning is why that term was substituted for LCA which represents 'lobe centerline angle'. Being quite aged, maybe I gravitate to outdated old guys like Ed I. and Harvey C. more than necessary. Maybe could consider it a flaw. Happy Marty's.

Beavers and virgins... starting to wonder.
Thanks Gary;-)

Hey doesn't really matter what you call it as long as it works.

Bret
Old Jan 16, 2006 | 12:40 PM
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Re: Sorry Guys, Another cam thread.

94's (maybe 93's, dunno) do have hardened pushrods from the factory but htey are still a 3-piece pushrod, and will most likely end up looking like this:





So I suggest upgrading.
Old Jan 16, 2006 | 12:42 PM
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Re: Sorry Guys, Another cam thread.

Originally Posted by A/G
Definately off topic, but after reading from several sources about the subject through the years, as well as too many archived threads from both camps in this forum, I do not really understand how (or why) that term came into existance. I am not disputing that LSA represents 'lobe sepAration angle'. What I am questioning is why that term was substituted for LCA which represents 'lobe centerline angle'. Being quite aged, maybe I gravitate to outdated old guys like Ed I. and Harvey C. more than necessary. Maybe could consider it a flaw. Happy Marty's.

Beavers and virgins... starting to wonder.
Thoughts from another old guy ...

Lobe Centerline Angle is probably a better term if you have symmetrical lobes. Really I believe the term might have been coined, probably by Ed or Harvey or maybe Gene (?) to specify how to index the cam master on the cam grinder when the cam was being produced. Imagine putting a dowel pin hole in the master at the centerline of the lobe. You could then easily install it on the grinder and dial in the desired angle from the keyway without any indicating of valve events.

Additionally, Lobe Separation Angle might be more intuitive to the average swinging Richard than Lobe Centerline Angle. I'm in the camp that wishes we never started using that term to describe a cam. Valve events and the resulting duration and overlap are what matters. It's been said, but not often enough IMO, that LSA/LCA is just a byproduct of the valve events. IOW, it's a DEPENDENT variable, not an INdependent one.

My $.02

PS: I'm a spelling kind of guy also.



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