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

rocker arms first, then cam later questions... and 224/230 or 230/236?????

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Old Mar 5, 2003 | 10:31 AM
  #16  
97Z-M6's Avatar
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From: near waco tx.
Originally posted by Z95m6
I believe a 112 will make more power. My friend has a post in the advanced tech and they are telling him for max power go with the 224/230 on a 110. The post is duration vs lift vs power or something you will see it the thread starter is turbo_Z
it will make more power but the lower lsa is worse when it comes to spray. but on a N/a engine the the 108 and 110 will make more power.

but if your goal is spray then 112 is low as i would go. mine goals are N/A so thats why im going to go 108 possibly a 109. but cam surge is a worry for me.
Old Mar 5, 2003 | 10:53 AM
  #17  
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From: High Orbit
Mine is on a 112 and it's noticeable at idle, but nothing horrendous since it's set at 850. When I'm running the ORP instead of the cat it sounds even better (1 ¾" midlength headers, 3" cat back, straight flow through type muffler).
Old Mar 5, 2003 | 10:56 AM
  #18  
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From: Northeast Ohio
Maybe I could compromise and get it ground on a 113* LSA?

And would I want the XL or HL grind?

NCC-224HL
HIGH ENERGY
Comp Cams 224HL Camshaft 224/230 duration @ .050", .525"/.560" lift with 1.5 rockers, .560"/598" lift with 1.6 rockers. Excellent cam for 350 naturally aspirated cars, street/strip.

-----OR-----

NCC-224XL
XTREME
Comp Cams 224XL Camshaft 224/230 duration @ .050", .503"/.510" lift with 1.5 rockers, .536"/.544" lift with 1.6 rockers. Almost as powerful as the XH but easier on the valvetrain.


I am pretty sure the 224 XH is too much, as far as being too much lift and too radical for the valvetrain.
Old Mar 5, 2003 | 11:07 AM
  #19  
Z95m6's Avatar
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From: newton, kansas, USA
i think you want the XL that HL will be too much lift for most springs.
Old Mar 5, 2003 | 11:13 AM
  #20  
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From: Kansas
Originally posted by Clubbin54
Maybe I could compromise and get it ground on a 113* LSA?

And would I want the XL or HL grind?

NCC-224HL
HIGH ENERGY
Comp Cams 224HL Camshaft 224/230 duration @ .050", .525"/.560" lift with 1.5 rockers, .560"/598" lift with 1.6 rockers. Excellent cam for 350 naturally aspirated cars, street/strip.

-----OR-----

NCC-224XL
XTREME
Comp Cams 224XL Camshaft 224/230 duration @ .050", .503"/.510" lift with 1.5 rockers, .536"/.544" lift with 1.6 rockers. Almost as powerful as the XH but easier on the valvetrain.


I am pretty sure the 224 XH is too much, as far as being too much lift and too radical for the valvetrain.
you dont need any cam with lift more than .550" on stock heads. getting the XH will only force you get more expensive springs and lifters to handle the lift that you dont need. with the traditional XL... you can use stock lifters and springs that will fit stock seats w/o machining.

this cam would be fine also for running nitrous even though its ground on a 112 LSA. the overlap is identical to that of the cc305(114 lsa) which a lot of guys use for nitrous.
Old Mar 5, 2003 | 03:01 PM
  #21  
sc93's Avatar
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From: Northeast Ohio
Thanks for the help guys. Right now I'm checking around to see if anyone will install this stuff for me.

No luck yet, and running out of places to go. I may just wait till summer and tackle it myself
Old Mar 5, 2003 | 05:56 PM
  #22  
D James's Avatar
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Originally posted by Shawn 97 Z28 M6
I had a 224/236 on stock heads and ran 12.5's, best of a 12.3.... Though I do have a 6 speed.


Damn I love being stubborn
I'm going with this cam on a 114 LSA , I assume yours is around 112, anyway I will also have stock heads, where do you shift at, I'm thinking somewhere in the 6000-6300 rpm range, not sure where the power drops off with this cam and I want to extract all I can.
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