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

Comp 915 vs 918

Thread Tools
 
Search this Thread
 
Old 03-27-2008, 12:55 PM
  #1  
Launching!
Thread Starter
iTrader: (25)
 
marovetsm's Avatar
 
Join Date: Feb 2008
Location: West Des Moines, IA
Posts: 266
Likes: 0
Received 0 Likes on 0 Posts

Default Comp 915 vs 918

Whats the difference between the Comp 915's and the 918's? The cam I am going to use has a lift of .563" and RPM's will probably not go above 6500 and was wondering which would be a better choice.

Last edited by marovetsm; 03-27-2008 at 01:17 PM.
Old 03-27-2008, 02:40 PM
  #2  
TECH Senior Member
iTrader: (4)
 
GuitsBoy's Avatar
 
Join Date: Apr 2003
Location: Long Island, NY
Posts: 6,249
Received 3 Likes on 3 Posts

Default

The 918s are a stiffer spring, and handle up to .600 lift. You could probably get away with either, but for the small price difference, why not go with the stronger 918's. Theyre tried and true.
Old 03-27-2008, 04:07 PM
  #3  
Launching!
iTrader: (5)
 
oneblackTA2000's Avatar
 
Join Date: Sep 2007
Location: Lexington, SC
Posts: 204
Likes: 0
Received 0 Likes on 0 Posts
Default

Tried and true my ***. I just went up to the dealership, my car has been up there all day. They have been trying to figure out why my car has been running so wierd. I broke a 918 spring after just 6000 miles.
Old 03-27-2008, 04:14 PM
  #4  
TECH Addict
iTrader: (22)
 
Stang's Bane's Avatar
 
Join Date: Aug 2005
Location: Mont Belvieu, TX
Posts: 2,649
Likes: 0
Received 1 Like on 1 Post

Default

Go with either the PAC 1218 or the 1518. Same type of spring but much better quality.
Old 03-27-2008, 04:25 PM
  #5  
On The Tree
 
Last C5's Avatar
 
Join Date: Dec 2004
Location: Vancouver, WA.
Posts: 114
Likes: 0
Received 0 Likes on 0 Posts

Default

Originally Posted by Stang's Bane
Go with either the PAC 1218 or the 1518. Same type of spring but much better quality.
What he said.
Old 03-27-2008, 04:58 PM
  #6  
TECH Senior Member
iTrader: (4)
 
GuitsBoy's Avatar
 
Join Date: Apr 2003
Location: Long Island, NY
Posts: 6,249
Received 3 Likes on 3 Posts

Default

Originally Posted by oneblackTA2000
Tried and true my ***. I just went up to the dealership, my car has been up there all day. They have been trying to figure out why my car has been running so wierd. I broke a 918 spring after just 6000 miles.
Well, they did have that bad batch last year... Probably should have mentioned that. However prior to that, and past that, people have been running them for years without problems.
Old 03-27-2008, 05:48 PM
  #7  
Banned
iTrader: (5)
 
Tom@SpeedInc's Avatar
 
Join Date: Apr 2003
Location: Chicago
Posts: 1,890
Likes: 0
Received 0 Likes on 0 Posts

Default

After talking with Chris at PAC I have total confidence in their product you can find them on our site here

http://www.ls1speed.com/cont.cfm?cid=C0000794

I have a couple sets of the 1518s I can discount if anyones interested

Last edited by Fraser@SpeedInc; 03-27-2008 at 09:32 PM.
Old 03-27-2008, 08:11 PM
  #8  
Launching!
 
Yeahdoug's Avatar
 
Join Date: Jun 2007
Location: NC
Posts: 212
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by GuitsBoy
However prior to that, and past that, people have been running them for years without problems.
That's because they were PACs.
Old 03-28-2008, 06:35 AM
  #9  
FormerVendor
iTrader: (45)
 
Frost's Avatar
 
Join Date: Jul 2005
Location: Richmond VA
Posts: 5,913
Likes: 0
Received 2 Likes on 2 Posts
Default

Originally Posted by Fraser@SpeedInc
After talking with Chris at PAC I have total confidence in their product you can find them on our site here

http://www.ls1speed.com/cont.cfm?cid=C0000794

I have a couple sets of the 1518s I can discount if anyones interested

Hey Fraser, those PAC1518's, can I use the same locks and retainers from a normal set of 918s on them?
Old 03-28-2008, 07:37 AM
  #10  
Launching!
 
Yeahdoug's Avatar
 
Join Date: Jun 2007
Location: NC
Posts: 212
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by Frost
Hey Fraser, those PAC1518's, can I use the same locks and retainers from a normal set of 918s on them?
Yes, you can



Quick Reply: Comp 915 vs 918



All times are GMT -5. The time now is 10:53 PM.