[Z06] Heads: no cam
Thread Starter
Instructor
Joined: Nov 2009
Posts: 238
Likes: 1
From: swedeboro new jersey
Heads: no cam
I know it may not make sense to do heads and leave the cam alone, but I am thinking about installing TFS heads, headers, and cai. I think it gives the car a stealth feel. How much rwp do you guys think I could expect with this set up?
Le Mans Master
Joined: Dec 2005
Posts: 8,576
Likes: 963
From: Communist Colorado
So youre adding a way to get the air into the combustion chamber through a CAI, and adding headers for the burnt gasses & higher volume of air to escape the combustion chamber, but not adding a cam that can get take advantage of both of those additions. Thats not the way to make power or spend your money wisely.
You need more lobe lift to get the higher volume of air into the combustion chamber and out to the exhaust. You need more duration or valve overlap time to get the mixture completely burnt. Not adding a cam to the mods you have planned is like having a ladder with no wrungs in the middle of it. You can get 1/2 way up from the bottom and 1/2 way down from the top.... but never all the way up or all the way down.
You need more lobe lift to get the higher volume of air into the combustion chamber and out to the exhaust. You need more duration or valve overlap time to get the mixture completely burnt. Not adding a cam to the mods you have planned is like having a ladder with no wrungs in the middle of it. You can get 1/2 way up from the bottom and 1/2 way down from the top.... but never all the way up or all the way down.
Race Director
Joined: Sep 2005
Posts: 11,060
Likes: 291
From: Pasco WA
I agree that's it's best to do a cam at the same time. You can get a VERY steathy cam that will idle like stock, and still give you great gains over the stock one, BTW. If you insist on leaving the cam alone, and you buy Trickflow heads, and get them milled to about 60cc, I believe you'd gain at least 40 RWHP, probably more with headers, CAI, and a tune. Maybe as much as 60 RWHP.
Race Director
Joined: Dec 2006
Posts: 12,387
Likes: 2,909
From: Fort Worth, Texas
So youre adding a way to get the air into the combustion chamber through a CAI, and adding headers for the burnt gasses & higher volume of air to escape the combustion chamber, but not adding a cam that can get take advantage of both of those additions. Thats not the way to make power or spend your money wisely.
You need more lobe lift to get the higher volume of air into the combustion chamber and out to the exhaust. You need more duration or valve overlap time to get the mixture completely burnt. Not adding a cam to the mods you have planned is like having a ladder with no wrungs in the middle of it. You can get 1/2 way up from the bottom and 1/2 way down from the top.... but never all the way up or all the way down.
You need more lobe lift to get the higher volume of air into the combustion chamber and out to the exhaust. You need more duration or valve overlap time to get the mixture completely burnt. Not adding a cam to the mods you have planned is like having a ladder with no wrungs in the middle of it. You can get 1/2 way up from the bottom and 1/2 way down from the top.... but never all the way up or all the way down.
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Race Director
Joined: Sep 2005
Posts: 11,060
Likes: 291
From: Pasco WA
Thread Starter
Instructor
Joined: Nov 2009
Posts: 238
Likes: 1
From: swedeboro new jersey
Thanks guys. I may just do the cam first and add the heads later. Thanks for the prompt responses. If I did decide to do both heads and cam, are the TFS heads worth the price? I did a little search, but most people talk about the stock LS6 heads. Its funny, I had an 05 GTO and did cam, headers, cai and tune. With that set up I ran a best of 12.1 @114, on drs. This car bone stock, with just Drs ran a best of 11.9 @116. I know weight plays a major part, but my car is a 2003!! That was major 7 years ago and is still amazing! I just want to get down to 11.0 @123-25 mph, enough to at least run with a stock C6 Z. Thanks again for the advice.
Drifting
Joined: Sep 2007
Posts: 1,649
Likes: 50
From: Goldsboro NC
all that was stated above is true. Better heads create better flow, more efficiency, however, if your cam isnt allowing more air in (stock) its pretty much useless. Do a search on cheater cams. Good luck
Race Director
Joined: Sep 2005
Posts: 11,060
Likes: 291
From: Pasco WA
Thanks guys. I may just do the cam first and add the heads later. Thanks for the prompt responses. If I did decide to do both heads and cam, are the TFS heads worth the price? I did a little search, but most people talk about the stock LS6 heads. Its funny, I had an 05 GTO and did cam, headers, cai and tune. With that set up I ran a best of 12.1 @114, on drs. This car bone stock, with just Drs ran a best of 11.9 @116. I know weight plays a major part, but my car is a 2003!! That was major 7 years ago and is still amazing! I just want to get down to 11.0 @123-25 mph, enough to at least run with a stock C6 Z. Thanks again for the advice.
Race Director
Joined: Dec 2006
Posts: 12,387
Likes: 2,909
From: Fort Worth, Texas
Thanks guys. I may just do the cam first and add the heads later. Thanks for the prompt responses. If I did decide to do both heads and cam, are the TFS heads worth the price? I did a little search, but most people talk about the stock LS6 heads. Its funny, I had an 05 GTO and did cam, headers, cai and tune. With that set up I ran a best of 12.1 @114, on drs. This car bone stock, with just Drs ran a best of 11.9 @116. I know weight plays a major part, but my car is a 2003!! That was major 7 years ago and is still amazing! I just want to get down to 11.0 @123-25 mph, enough to at least run with a stock C6 Z. Thanks again for the advice.
