Generation III Internal Engine 1997-2006 LS1 | LS6
Sponsored by:
Sponsored by:

What will adding 4 degrees of exhaust duration do?

Thread Tools
 
Search this Thread
 
Old 03-28-2006 | 09:58 PM
  #1  
BADFNZ's Avatar
Thread Starter
TECH Fanatic
iTrader: (19)
 
Joined: Apr 2002
Posts: 1,590
Likes: 2
From: Dyess AFB, TX
Default What will adding 4 degrees of exhaust duration do?

I have an F13 (230/232) 111+1 cam and have to take it out to send it to Futral. I'm thinking about just buying another cam. I'm thinking about a 230/236 112+2 cam to replace it with. Seeing that they have the same intake duration and ICL, what will adding just 4* of exhaust duration do as far as power and where it peaks?
Old 03-28-2006 | 11:28 PM
  #2  
Beast96Z's Avatar
TECH Veteran
iTrader: (21)
 
Joined: Apr 2003
Posts: 4,049
Likes: 3
From: Shreveport, LA
Default

It pretty much won't do anything. Your only changing your IVC by 1/2 a degree and overlap will stay exactly the same. The intake valve closing is what determines your peak, and your not changing it. The longer duration might help if you have a poor exaust port/system, but that's likley going to be neglagent.
Old 03-29-2006 | 12:22 AM
  #3  
BADFNZ's Avatar
Thread Starter
TECH Fanatic
iTrader: (19)
 
Joined: Apr 2002
Posts: 1,590
Likes: 2
From: Dyess AFB, TX
Default

Thanks for the help.

Can anyone figure out the DCR for both cams? My calculator is giving me 11.26
Old 03-29-2006 | 01:50 AM
  #4  
cantdrv65's Avatar
TECH Junkie
iTrader: (3)
 
Joined: Nov 2001
Posts: 3,202
Likes: 0
From: TEXASS
Post

If you sprayed the car it would make a little more power...but even with spray you are going to see a small gain. Not worth it.....




All times are GMT -5. The time now is 11:31 PM.