GMT 900 Trucks General Discussion 2007 - 2013 Trucks | General Discussion

Ls9 Cam results, dang.

Old Oct 14, 2011 | 08:41 PM
  #51  
Area47's Avatar
TECH Fanatic
 
Joined: Jul 2006
Posts: 1,737
Likes: 0
From: K.C.
Default

you wouldn't happen to have a list of part numbers would ya?
Reply
Old Oct 14, 2011 | 11:19 PM
  #52  
OrangeChevyII's Avatar
Thread Starter
TECH Enthusiast
 
Joined: Aug 2008
Posts: 637
Likes: 0
From: Dallas
Default

After being in the truck for over and hour pulled right in. Went a 13.5@104. It hot, need to let it cool down. Should pick up alot.
Reply
Old Oct 14, 2011 | 11:20 PM
  #53  
OrangeChevyII's Avatar
Thread Starter
TECH Enthusiast
 
Joined: Aug 2008
Posts: 637
Likes: 0
From: Dallas
Default

And I spun a 2.21 60ft
Reply
Old Oct 14, 2011 | 11:53 PM
  #54  
gonzo 6.2's Avatar
TECH Veteran
iTrader: (8)
 
Joined: Oct 2002
Posts: 4,516
Likes: 15
From: oregon
Default

Originally Posted by OrangeChevyII
After being in the truck for over and hour pulled right in. Went a 13.5@104. It hot, need to let it cool down. Should pick up alot.

so all things being equal to last time at the track,whats your best guess what it would run now in those same past conditions?

Last edited by gonzo 6.2; Oct 15, 2011 at 12:23 AM.
Reply
Old Oct 15, 2011 | 12:31 AM
  #55  
OrangeChevyII's Avatar
Thread Starter
TECH Enthusiast
 
Joined: Aug 2008
Posts: 637
Likes: 0
From: Dallas
Default

I'd say if anything it might run a 13.3 or so, the cam didn't show it on the dyno but I lost about a .10 in my 60ft. Still, it picked up 3 mph so I'm happy with that.
Reply
Old Oct 16, 2011 | 10:02 AM
  #56  
Doc_speeder's Avatar
Staging Lane
iTrader: (1)
 
Joined: Dec 2010
Posts: 85
Likes: 0
From: Lethbridge Alberta
Default

Seeing these specs on these cams makes me wonder why the popular aftermarket cams have lobe centers in the 110-114 degree range. I'm of the opinion that wider lobe centers like the LS9/7 cams promote better efficiency, emissions etc.
Are guys really that petty to change cams just for a lumpy idle? Thats like wearing tight girl jeans and high tops because they are "fashionable", even though they squash your boys...
Are there other benefits of a tighter LC?
Reply
Old Oct 16, 2011 | 12:21 PM
  #57  
chevrolade's Avatar
TECH Fanatic
iTrader: (22)
 
Joined: Sep 2007
Posts: 1,456
Likes: 0
From: pearsall.tx
Default

nice what was your previous best e.t?btw u didnt mention pushrods,u used the oems?
Reply
Old Oct 16, 2011 | 02:30 PM
  #58  
rjwz28's Avatar
Man Motor club
 
Joined: Jun 2007
Posts: 2,623
Likes: 1
From: Sunniest city on Earth
Default

I can't tell you how many guys I've bumped into who are looking for the cam that will give them that typical lumpy cammed idle.
Reply
Old Oct 16, 2011 | 03:52 PM
  #59  
OrangeChevyII's Avatar
Thread Starter
TECH Enthusiast
 
Joined: Aug 2008
Posts: 637
Likes: 0
From: Dallas
Default

Stock pushrods, best e.t prior was a 13.64@101. So it did pick it up, the fuel mpg hasnt suffered enough for it to be a concern. I love it
Reply
Old Oct 16, 2011 | 04:02 PM
  #60  
TIM Z's Avatar
11 sec. Truck Mod
iTrader: (12)
 
Joined: Dec 2005
Posts: 9,736
Likes: 4
From: OH IO :(
Default

Originally Posted by Doc_speeder
Seeing these specs on these cams makes me wonder why the popular aftermarket cams have lobe centers in the 110-114 degree range. I'm of the opinion that wider lobe centers like the LS9/7 cams promote better efficiency, emissions etc.
Are guys really that petty to change cams just for a lumpy idle? Thats like wearing tight girl jeans and high tops because they are "fashionable", even though they squash your boys...
Are there other benefits of a tighter LC?
Originally Posted by rjwz28
I can't tell you how many guys I've bumped into who are looking for the cam that will give them that typical lumpy cammed idle.
I guess you guys dont buy exhaust just for sound then either?
Reply

Thread Tools
Search this Thread

All times are GMT -5. The time now is 06:36 AM.