LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Im thinking on doin a cam swap

Thread Tools
 
Search this Thread
 
Old Feb 1, 2009 | 09:44 PM
  #1  
TBSPW's Avatar
Thread Starter
Registered User
 
Joined: Sep 2007
Posts: 388
From: New Jersey
Im thinking on doin a cam swap

well ive been wanting more power for awhile and know my next step is the cam...is this setup worth it http://store.summitracing.com/partde...8&autoview=sku ...mostly a street car that hits the track maybe twice a month
Old Feb 1, 2009 | 09:49 PM
  #2  
TBSPW's Avatar
Thread Starter
Registered User
 
Joined: Sep 2007
Posts: 388
From: New Jersey
which roller rockers would i need anyway?
Old Feb 2, 2009 | 07:47 AM
  #3  
96capricemgr's Avatar
Registered User
 
Joined: Feb 2004
Posts: 4,800
I would not go that route.
The timing set wont allow you to keep the stock waterpump.
The LT1 needs more rpm than gen 1 motors due to the intake design as such the springs will likely endup being insufficient especially once you conbine that with the possibility that you will buy 1.6 rockers. You can't add 1.6 rockers and 500+rpms and expect the supplied spring to work unless you get the part number for the spring and check it. Looks like Comp recommends the 986 or 987 with that cam I wouldn't use either with 1.6s and LT1 rpms.

Kit is aimed at TPI so the cam nose might not be quite right for the opti.

Replacing lifters is likely unnecessary.

I know a "kit" is attractive, but hat are not a lot of truely well thought out kits.

This is the only truely complete kit I know of.
http://advancedinduction.com/AiProductsCK.html
Once you add up the cost of being more complete, having better parts, and not having an unneccessary parts this is a good value even though at a glance it looks a lot more expensive.

My the time you aded gaskets, pushrods, and rockers to the kit you picked out you would have been to at least this cost, and like I tried to detail above, there are a lot of reasons that kit wont work well even though the 503 is a solid proven cam it was the rest of the kit that was the problem.

Last edited by 96capricemgr; Feb 2, 2009 at 04:57 PM.
Old Feb 2, 2009 | 04:40 PM
  #4  
95zsean's Avatar
Registered User
 
Joined: Jun 2006
Posts: 919
From: New Brunswick,Canada
I LOVE my cc 503!!!!! nice sound not that harsh of an idel,and it REALLY supprises people when you hand them their A**!!!LOL I put my parts together cheeper than that keep an eye on the boards parts for sale. I have a couple of Vids on youtube just search "cc503 Z28 ideling" and "cc503 on the dyno".
Old Feb 2, 2009 | 07:25 PM
  #5  
TBSPW's Avatar
Thread Starter
Registered User
 
Joined: Sep 2007
Posts: 388
From: New Jersey
waterpump isnt a problem anyway...i have an electic one so thats out of the way.
Old Feb 2, 2009 | 07:30 PM
  #6  
TBSPW's Avatar
Thread Starter
Registered User
 
Joined: Sep 2007
Posts: 388
From: New Jersey
Originally Posted by 96capricemgr
I would not go that route.
The timing set wont allow you to keep the stock waterpump.
The LT1 needs more rpm than gen 1 motors due to the intake design as such the springs will likely endup being insufficient especially once you conbine that with the possibility that you will buy 1.6 rockers. You can't add 1.6 rockers and 500+rpms and expect the supplied spring to work unless you get the part number for the spring and check it. Looks like Comp recommends the 986 or 987 with that cam I wouldn't use either with 1.6s and LT1 rpms.

Kit is aimed at TPI so the cam nose might not be quite right for the opti.

Replacing lifters is likely unnecessary.

I know a "kit" is attractive, but hat are not a lot of truely well thought out kits.

This is the only truely complete kit I know of.
http://advancedinduction.com/AiProductsCK.html
Once you add up the cost of being more complete, having better parts, and not having an unneccessary parts this is a good value even though at a glance it looks a lot more expensive.

My the time you aded gaskets, pushrods, and rockers to the kit you picked out you would have been to at least this cost, and like I tried to detail above, there are a lot of reasons that kit wont work well even though the 503 is a solid proven cam it was the rest of the kit that was the problem.
thanks for the info...ill prolly order this next week...thanks for steering me in the right direction.
Old Feb 2, 2009 | 07:41 PM
  #7  
chevyowner02's Avatar
Registered User
 
Joined: May 2006
Posts: 247
From: Kingsport,TN
Originally Posted by 95zsean
I LOVE my cc 503!!!!! nice sound not that harsh of an idel,and it REALLY supprises people when you hand them their A**!!!LOL I put my parts together cheeper than that keep an eye on the boards parts for sale. I have a couple of Vids on youtube just search "cc503 Z28 ideling" and "cc503 on the dyno".
Take a look at it's not the cc503 you are thinking about.
Old Feb 2, 2009 | 07:43 PM
  #8  
TBSPW's Avatar
Thread Starter
Registered User
 
Joined: Sep 2007
Posts: 388
From: New Jersey
what do you mean?
Old Feb 3, 2009 | 06:33 AM
  #9  
95zsean's Avatar
Registered User
 
Joined: Jun 2006
Posts: 919
From: New Brunswick,Canada
Originally Posted by chevyowner02
Take a look at it's not the cc503 you are thinking about.
He's right the 503 for LT1's is a 276HR-12. The cam in that kit is a XR276HR. If you click on the check if it will fit it says it WONT fit a LT1/LT4.
Old Feb 3, 2009 | 05:04 PM
  #10  
96capricemgr's Avatar
Registered User
 
Joined: Feb 2004
Posts: 4,800
Like I said in my first post, nose may not be right since this is TPI targetted. It is the same lobes and such you do want, but has some slight variations in the nose that will cause you some hassles.
Old Feb 3, 2009 | 09:38 PM
  #11  
TBSPW's Avatar
Thread Starter
Registered User
 
Joined: Sep 2007
Posts: 388
From: New Jersey
yeah im goin with the AI cam kit they have...checked it out and basically fell in love with it...prolly gettin it when the tax check comes in
Old Feb 4, 2009 | 02:36 PM
  #12  
mr_wizard's Avatar
Registered User
 
Joined: Apr 2007
Posts: 95
You're going to get about 20-30hp from this, and assuming you get the correct rockers (another 300 or so), you're looking at a total of MAYBE 50 hp. So 50hp and a little bit better sounds for over 1k. not worth it. Go nitros and get 100-150, while still staying streetable, for about half of what you're spending. That's my opinion. Are you installing this yourself? Have you done it before? It's not easy... And if you have someone else do it, plan to spend another 500+
Old Feb 4, 2009 | 03:31 PM
  #13  
RamAir95TA's Avatar
Registered User
 
Joined: Sep 2001
Posts: 4,152
From: Woodstown, NJ
Originally Posted by mr_wizard
You're going to get about 20-30hp from this, and assuming you get the correct rockers (another 300 or so), you're looking at a total of MAYBE 50 hp. So 50hp and a little bit better sounds for over 1k. not worth it. Go nitros and get 100-150, while still staying streetable, for about half of what you're spending. That's my opinion. Are you installing this yourself? Have you done it before? It's not easy... And if you have someone else do it, plan to spend another 500+
Try not to scare the guy.

Installing a cam is by no means easy, but you're making it out to be a week-long hellish nightmare. A couple friends in a weekend can bang it out, just as long as you have a good set of tools, a few beers, and a nice weekend.

Nitrous doesn't fit everyone's appetite. Having a cam has more advantages rather than just the 50 or so HP (often more). You're talking a HP increase of 20% all the time - not bad. There are hundreds of people, thousands probably who have done cam swaps (myself included) and don't regret it. There's dozens of ways to increase power. Nitrous and a cam install are two options. Not to mention a good nitrous setup can cost upwards of $1000 anyway when you include the safety equipment and precautions.

Nitrous isn't for everyone. But who knows, maybe your comments will strike a chord with the OP.
Old Feb 4, 2009 | 04:22 PM
  #14  
mr_wizard's Avatar
Registered User
 
Joined: Apr 2007
Posts: 95
Eh, yeah, it's just my two cents. Just hope the guy knows what he's doing because it's a pretty big project with alot of money involved. Sure, having some friends over makes it faster, but finding friends who know what they're are doing is tough, atleast for me. Then doing it in winter, I hope you have a garage. Personally, I already HAD the cam and the motor torn apart down to the block and still turned away. The power gains are just not worth all the money and labor... Call me a pessimist. And if he's asking what kind of rockers go with this setup I don't think he realizes all that's involved.

BUT - if he has money + time + patience then i'd say sure, go for it.
Old Feb 5, 2009 | 05:26 AM
  #15  
krillformula's Avatar
Registered User
 
Joined: Jan 2007
Posts: 275
Originally Posted by mr_wizard
Personally, I already HAD the cam and the motor torn apart down to the block and still turned away. The power gains are just not worth all the money and labor... Call me a pessimist.
haha you got to be kidding! Yea I would call that a pessimist.

No offfense, but that made my day!



All times are GMT -5. The time now is 06:20 PM.