General LSX Automobile Discussion Non-technical LSX related topics.

Cam or Headers?

Thread Tools
 
Search this Thread
 
Old 10-10-2006, 12:58 PM
  #1  
12 Second Club
Thread Starter
iTrader: (10)
 
craz28's Avatar
 
Join Date: Aug 2006
Location: USSR
Posts: 373
Likes: 0
Received 0 Likes on 0 Posts
Default Cam or Headers?

I cant decide what I want. Headers sound nice and that would complete my exhaust setup since I already have a catback, but I also love the sound of a cam and I want to get the biggest one but I know for that I will need new heads which will cost a lot more than headers. Will a not so large cam be worth buying without heads? Will it sound nice or should I just save up for the biggest one with heads? What is worth more, getting a cam or headers? I am looking at around 700 dollars to spend. I really need an advice here.
Old 10-10-2006, 01:31 PM
  #2  
10 Second Club
iTrader: (28)
 
jmm98LS1's Avatar
 
Join Date: Feb 2005
Location: KS
Posts: 3,975
Likes: 0
Received 3 Likes on 3 Posts

Default

Couple things here:
1a) Use the search function.
1b) You need to do headers first (longtubes preferably). Stock manifolds will choke the potential the cam gives the motor, netting you less than stellar gains.
2) You don't need to change the heads to add a cam. Once you get your headers on, do some research in the internal engine section for what cam suits your goals the best. Tons of guys here run cam only setups (bigger cam on stock heads), myself included.
Old 10-10-2006, 02:25 PM
  #3  
TECH Fanatic
iTrader: (17)
 
02NHRAtransAm's Avatar
 
Join Date: Dec 2005
Location: Visalia, CA
Posts: 1,596
Likes: 0
Received 0 Likes on 0 Posts

Default

:agree:
Old 10-10-2006, 03:01 PM
  #4  
TECH Veteran
iTrader: (10)
 
BayAreaSS's Avatar
 
Join Date: May 2006
Location: Bay Area, CA (Pittsburg)
Posts: 4,240
Likes: 0
Received 2 Likes on 2 Posts

Default

Get the headers first...your car needs to breathe
Old 10-10-2006, 03:04 PM
  #5  
TECH Addict
 
Ell Ess Won's Avatar
 
Join Date: May 2005
Location: Top of 4th Gear; Plano, TX
Posts: 2,245
Likes: 0
Received 0 Likes on 0 Posts
Default

1. Get the headers. Building a good running car is all about the proper steps.

2. You're not going to get a cam kit + install + tune for $700. The kit with the springs will cost somewhere in the neighborhood of $1200 for everything. Add another $400 for a tune.
Old 10-10-2006, 03:05 PM
  #6  
TECH Senior Member
iTrader: (1)
 
NHRAMAN's Avatar
 
Join Date: Apr 2005
Location: Vancouver,[KITSILANO].B.C. Canada *WestCoast*
Posts: 8,810
Likes: 0
Received 0 Likes on 0 Posts
Thumbs up

Originally Posted by BayAreaSS
Get the headers first...your car needs to breathe
yup.
Old 10-10-2006, 03:36 PM
  #7  
TECH Veteran
iTrader: (31)
 
bjamick's Avatar
 
Join Date: May 2006
Location: Birmingham AL.
Posts: 4,218
Received 3 Likes on 3 Posts

Default

def get the headers first, so you can get the air out that the cam is letting in. and stock heads are fine isnt like you cant get them ported!! which is what my plans will be.
Old 10-10-2006, 04:55 PM
  #8  
TECH Fanatic
iTrader: (1)
 
BrandonDrecksage's Avatar
 
Join Date: Mar 2005
Location: Central jersey, nj
Posts: 1,688
Likes: 0
Received 0 Likes on 0 Posts

Default

Originally Posted by craz28
I cant decide what I want. Headers sound nice and that would complete my exhaust setup since I already have a catback, but I also love the sound of a cam and I want to get the biggest one but I know for that I will need new heads which will cost a lot more than headers. Will a not so large cam be worth buying without heads? Will it sound nice or should I just save up for the biggest one with heads? What is worth more, getting a cam or headers? I am looking at around 700 dollars to spend. I really need an advice here.
putting in a cam before doing headers is like ******* a beautiful girl..blind folded. You'll get something in return, but not everything you deserve for the work you put into it.

you'll gain something, but you will seriously choke any real cam with the stock manifolds. You don't need new heads with a new cam. Also, most sponsers should be able to do a cam install without even removing your heads.
Old 10-10-2006, 05:00 PM
  #9  
Registered User
iTrader: (14)
 
98slowt/a's Avatar
 
Join Date: Jan 2006
Location: abilene tx
Posts: 88
Likes: 0
Received 0 Likes on 0 Posts
Default

Do Headers First
Old 10-10-2006, 05:05 PM
  #10  
TECH Resident
iTrader: (1)
 
~RedLineLs1~'s Avatar
 
Join Date: Nov 2003
Location: Pueblo, Colorado
Posts: 891
Likes: 0
Received 0 Likes on 0 Posts

Default

Like it has been mentioned, a large cam is pointless without headers.

I also see you're an auto. Do you have a torque converter? Im surprised nobody has mentioned this but you'll need a TC before a cam also.
Old 10-10-2006, 05:05 PM
  #11  
TECH Fanatic
iTrader: (6)
 
landstuhltaylor's Avatar
 
Join Date: Aug 2006
Location: CBUS
Posts: 1,279
Received 45 Likes on 26 Posts

Default

+500 for headers
Old 10-10-2006, 05:50 PM
  #12  
TECH Resident
iTrader: (10)
 
Smoke Panther's Avatar
 
Join Date: Feb 2006
Location: Herndon, VA
Posts: 868
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by ~RedLineLs1~
Like it has been mentioned, a large cam is pointless without headers.
Old 10-10-2006, 08:07 PM
  #13  
12 Second Club
Thread Starter
iTrader: (10)
 
craz28's Avatar
 
Join Date: Aug 2006
Location: USSR
Posts: 373
Likes: 0
Received 0 Likes on 0 Posts
Default

why would i need a torque converter with a cam?
Old 10-10-2006, 08:46 PM
  #14  
10 Second Club
iTrader: (28)
 
jmm98LS1's Avatar
 
Join Date: Feb 2005
Location: KS
Posts: 3,975
Likes: 0
Received 3 Likes on 3 Posts

Default

Originally Posted by craz28
why would i need a torque converter with a cam?
Because with a larger cam, you will be moving the powerband of your motor to a higher rpm range. The higher stall lets the motor slip right into the new powerband, keeping you where you're making the most power. The stock converter is really too small for even the stock cam....bone stock cars with a 3500+rpm stall have seen .5 second ET reductions.
Another reason is a bigger cam is going to have to idle at a higher rpm than the stock cam. Once you raise your idle speed a couple hundred rpm, the stock converter will really want to move the car forward idling in gear making you have to put extra pressure on the brakes to keep the car stopped. Compound this to the fact that you're producing less vaccuum at idle for your power brakes with the bigger cam and you really end up having a car that's a pain in the *** to drive. You need to have supporting mods like full exhaust & converter before you think about a cam. Start out by doing some research in the internal engine sections....there's answers to all your questions there.
Old 10-10-2006, 08:53 PM
  #15  
TECH Resident
iTrader: (1)
 
~RedLineLs1~'s Avatar
 
Join Date: Nov 2003
Location: Pueblo, Colorado
Posts: 891
Likes: 0
Received 0 Likes on 0 Posts

Default

Well...You dont NEED one but it comes highly recommended. Ever try driving a cammed auto with a TC? It will pull the brakes because you will need to raise the idle speed. Makes it a PITA to drive. Not to mention a TC helps you get into the RPMs where the cam is beneficial. You want a big cam so lets say the power won't really come on until 3500rpms. With a stock TC it will take awhile and be a turd off the line, a TC will flash the RPMs into the cams power range (IE: 3500 stall will flash at 3500rpm's). You can get away using the stock TC if you're willing to run a small cam, but like you said you want a big cam.

When it comes to A4s, headers, cams, and TC's all play a major role and go hand in hand with each other.

Your money will be better spent if you get headers or a TC. You'll need/want everything sooner or later so I would choose between those two before anything.

Looks like jmm98ls1 beat me to it.
Old 10-10-2006, 09:04 PM
  #16  
Teching In
 
bryanZ06's Avatar
 
Join Date: Oct 2006
Location: Georgia
Posts: 16
Likes: 0
Received 0 Likes on 0 Posts
Default

Headers then cam/tc.
Old 10-11-2006, 07:15 PM
  #17  
12 Second Club
Thread Starter
iTrader: (10)
 
craz28's Avatar
 
Join Date: Aug 2006
Location: USSR
Posts: 373
Likes: 0
Received 0 Likes on 0 Posts
Default

thanks guys, that explains everything i had in mind
Old 10-12-2006, 10:05 PM
  #18  
TECH Cry Baby BOSS APPROVED!
iTrader: (5)
 
Urban Legend's Avatar
 
Join Date: Jul 2005
Posts: 5,799
Likes: 0
Received 2 Likes on 2 Posts
Default

Do the headers first, cam later on.




All times are GMT -5. The time now is 05:32 PM.