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

What are the odds of..

Thread Tools
 
Search this Thread
 
Old Sep 18, 2004 | 10:35 PM
  #1  
vin1382's Avatar
Thread Starter
Registered User
 
Joined: May 2004
Posts: 406
What are the odds of..

passing emmissions with a cc305 cam ground on a 112 lsa? also, how much would the extra overlap kill low-end, as opposed to adding more top-end? would it be enough justify having the cam custom ground(more $$) on a 112? or would I get more pure overall performance on the standard cc305 114?

Assuming this through full exhaust and all bolt-ons, with 2800 stall torque converter.
Old Sep 19, 2004 | 01:18 PM
  #2  
vin1382's Avatar
Thread Starter
Registered User
 
Joined: May 2004
Posts: 406
Re: What are the odds of..

anyone? i figure because its a bit bigger than the hotcam, it will be pushing it to pass emissions...but will be close.
Old Sep 19, 2004 | 01:20 PM
  #3  
FastZinTennessee's Avatar
Registered User
 
Joined: Mar 2001
Posts: 2,521
From: Costa Mesa, CA
Re: What are the odds of..

To give you a comparison I was able to pass emmissions with about half the allowable hydrocarbons and CO output with a HOTcam and ported heads with larger valves. The exhaust was run through a random technologies high flow universal catalytic converter. Unless your emmissions standards are much more strict than they are here in TN, I think you'll be fine.
Old Sep 20, 2004 | 05:24 AM
  #4  
vin1382's Avatar
Thread Starter
Registered User
 
Joined: May 2004
Posts: 406
Re: What are the odds of..

Originally Posted by FastZinTennessee
To give you a comparison I was able to pass emmissions with about half the allowable hydrocarbons and CO output with a HOTcam and ported heads with larger valves. The exhaust was run through a random technologies high flow universal catalytic converter. Unless your emmissions standards are much more strict than they are here in TN, I think you'll be fine.

Hmm, i believe TN and NJ are similar. Damn, that sounds pretty good. Did you have a dyno tune for that? or just a mail tune?
Old Sep 20, 2004 | 06:07 AM
  #5  
RE AND CHERYL's Avatar
Registered User
 
Joined: Oct 2003
Posts: 2,140
From: DOVER DE
Re: What are the odds of..

I don't really think your gonna notice the difference between 112lsa and 114 lsa. Car Craft did a test where they tested two identical cams. One ground on 108 lsa and one on 114 lsa. While the difference on the bottom end was significant, the two cams were only a few HP apart on the top end.

Dosn't NJ use the Dyno type emissions test? That test is a bit harder to pass then the idle test.
Old Sep 20, 2004 | 07:54 AM
  #6  
SixSpeedShifter's Avatar
Registered User
 
Joined: Apr 2004
Posts: 138
From: Cherry Hill, NJ
Re: What are the odds of..

Originally Posted by RE AND CHERYL
Dosn't NJ use the Dyno type emissions test? That test is a bit harder to pass then the idle test.
Yes.
Old Sep 20, 2004 | 07:59 AM
  #7  
Jeffs94Z28's Avatar
Registered User
 
Joined: Jan 2003
Posts: 261
From: Boston, MA
Re: What are the odds of..

Buy a cable and save your pcm, load your vin onto friends emissions passing car. swap the plates, have him pass, swap the sticker. Load his vin back in. It outa work, I havent tried it yet...
Old Sep 20, 2004 | 09:21 AM
  #8  
vin1382's Avatar
Thread Starter
Registered User
 
Joined: May 2004
Posts: 406
Re: What are the odds of..

Originally Posted by Jeffs94Z28
Buy a cable and save your pcm, load your vin onto friends emissions passing car. swap the plates, have him pass, swap the sticker. Load his vin back in. It outa work, I havent tried it yet...
lol, might as well go with the cc306 if i am gonna do that.
Old Sep 20, 2004 | 09:25 AM
  #9  
vin1382's Avatar
Thread Starter
Registered User
 
Joined: May 2004
Posts: 406
Re: What are the odds of..

Originally Posted by RE AND CHERYL
I don't really think your gonna notice the difference between 112lsa and 114 lsa. Car Craft did a test where they tested two identical cams. One ground on 108 lsa and one on 114 lsa. While the difference on the bottom end was significant, the two cams were only a few HP apart on the top end.

Dosn't NJ use the Dyno type emissions test? That test is a bit harder to pass then the idle test.
If i have my stock cat on, hopefully that will help out a bit. Based on the fact that the CC305 isnt much bigger than the hotcam, and also that the hot-cam on a 112 lsa which is against it passing emissions, i think it will be pretty close to passing on the 112 with the cc305.

Also, with regards to the car craft, the bottom end difference seems like it would be big when comparing a 114 and a 108 lsa...but 112 and 114 doesnt seem like it would be that big.

the 108 and 114 were only a few hp apart on the top-end, but what were they revving to? do you think the 108 would have made a bit more power if they revved both higher?
Old Sep 20, 2004 | 09:27 AM
  #10  
vin1382's Avatar
Thread Starter
Registered User
 
Joined: May 2004
Posts: 406
Re: What are the odds of..

Originally Posted by FastZinTennessee
To give you a comparison I was able to pass emmissions with about half the allowable hydrocarbons and CO output with a HOTcam and ported heads with larger valves. The exhaust was run through a random technologies high flow universal catalytic converter. Unless your emmissions standards are much more strict than they are here in TN, I think you'll be fine.
Does TN have the dyno type test?
Old Sep 20, 2004 | 07:55 PM
  #11  
vin1382's Avatar
Thread Starter
Registered User
 
Joined: May 2004
Posts: 406
Re: What are the odds of..

Originally Posted by vin1382
Does TN have the dyno type test?

Any of you guys want to chime back in? so far, been good info!
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
cmsmith
2016+ Camaro News, Sightings, Pictures, and General Discussion
7
Sep 14, 2015 09:25 PM
Zrout
Parts For Sale
0
Jun 15, 2015 05:06 PM
96TAragtop
LT1 Based Engine Tech
4
Jan 31, 2003 02:15 PM
BartonekDragRacing
West South Central
2
Nov 4, 2002 11:37 AM
camarosource
Show and Shine / Paint and Body Care
3
Jul 14, 2002 01:14 PM




All times are GMT -5. The time now is 09:38 AM.