Advanced Engineering Tech For the more hardcore LS1TECH residents

Cam timing question! What is my tolerance?

Thread Tools
 
Search this Thread
 
Old 07-27-2009, 09:48 PM
  #1  
TECH Enthusiast
Thread Starter
iTrader: (6)
 
Prerun4fun13's Avatar
 
Join Date: Apr 2007
Location: Nor Cal
Posts: 540
Likes: 0
Received 0 Likes on 0 Posts

Default Cam timing question! What is my tolerance?

Ok so im degreeing my cam right now and i found it to be at 110.25* ICL. The cam is to be installed at 111* ICL per the cam card. Now i know there are times were you can have + or - 1*. Is this the case?
Any advice is appreciated
Thanks
Old 07-27-2009, 11:03 PM
  #2  
LS1 Tech Veteran
iTrader: (1)
 
Steve Bryant's Avatar
 
Join Date: Oct 2003
Location: Wichita, Ks
Posts: 1,170
Likes: 0
Received 0 Likes on 0 Posts

Default

You might loose a pound or two of torque at the bottom end and gain a HP or two at peak. There will be hardly any difference in my opinion. I assume that you don't have an adjustable timing set, so I'd button things up and move forward.

Steve
Old 07-28-2009, 01:19 AM
  #3  
TECH Enthusiast
Thread Starter
iTrader: (6)
 
Prerun4fun13's Avatar
 
Join Date: Apr 2007
Location: Nor Cal
Posts: 540
Likes: 0
Received 0 Likes on 0 Posts

Default

I do have the cloyes hex adjust timing set.. Just the adjustments on the cam gear it has little dots on the little hex adjuster and each mark is 2* and those are really small movements so im thinking im going to end up moving it to far since all i need is about a 3/4 - 1/2 a degree. So i figured i would ask around and get some opinions before i changed the timing. I also pmed pred z who specked the cam out.
Old 07-28-2009, 01:43 AM
  #4  
TECH Resident
iTrader: (11)
 
ThirdGenLS1's Avatar
 
Join Date: Jul 2004
Location: Boston
Posts: 987
Likes: 0
Received 0 Likes on 0 Posts

Default

dont worry about it, bolt it back up, the engine will never no the difference.
Old 07-28-2009, 10:16 PM
  #5  
LS1 Tech Veteran
iTrader: (1)
 
Steve Bryant's Avatar
 
Join Date: Oct 2003
Location: Wichita, Ks
Posts: 1,170
Likes: 0
Received 0 Likes on 0 Posts

Default

The hexadjust is really pretty easy to adjust. It's your choice. Do a little trial and error or button things up and move ahead.

Steve
Old 07-28-2009, 10:18 PM
  #6  
TECH Enthusiast
iTrader: (13)
 
Orr89rocz's Avatar
 
Join Date: Nov 2005
Location: Pittsburgh PA
Posts: 665
Likes: 0
Received 0 Likes on 0 Posts

Default

+ or - 1 or 2 degrees sometimes will not show much of a difference. Button it up and call it a day. Thats very close
Old 08-03-2009, 09:07 PM
  #7  
TECH Fanatic
iTrader: (2)
 
WE TODD DID's Avatar
 
Join Date: Feb 2007
Posts: 1,627
Received 289 Likes on 169 Posts

Default

Run it. You may check it on a different cam lobe, and it will be more or less.
Old 08-06-2009, 01:31 AM
  #8  
TECH Junkie
iTrader: (33)
 
JonCR96Z's Avatar
 
Join Date: Jan 2003
Location: Asheboro, NC
Posts: 3,005
Likes: 0
Received 18 Likes on 10 Posts

Default

Originally Posted by WE TODD DID
Run it. You may check it on a different cam lobe, and it will be more or less.
True dat. Even that's to say that sticking a cam in isn't always just a guess. One combo may work better one way another may not.



Quick Reply: Cam timing question! What is my tolerance?



All times are GMT -5. The time now is 09:12 AM.