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Old Jul 14, 2009 | 07:54 PM
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Default Need cam suggestions...

So i went ahead and made the plunge on the Kooks long tubes and BB fusion exhaust. It is still on the way but when it gets here I think I will be pretty satisfied. While searching for the sound i wanted I looked up vids on the internet to get a feel for what certain exhausts would sound like and I stumbled upon this little gem...

http://www.youtube.com/watch?v=8R-E-Dy6Tag

This is EXACTLY how I want mine to sound, but I need some info.

Obviously he has the same setup for headers and exhaust as me, but the vid caption says head and cam work as well with no further details, so I have some questions.

1. Does anyone know of a head/cam package that would give me this sound?

2. I know little about cams, so maybe a little about how the numbers work would be appreciated.

3. What kind of low RPM driveability would I be looking at with something like this?

4. If I do find what im looking for I plan to have it professionally installed and tuned. What kind of price would I be looking at for something like that?

5. I had more questions but i forget them now that I can post. Any help is appreciated tho.

2007 corvette z51 M6
Kooks 1 3/4 LT
BB Fusion pipes
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Old Jul 14, 2009 | 08:11 PM
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forgot to mention that the car is a daily driver, but sees autocross and road courses from time to time.
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Old Jul 14, 2009 | 10:26 PM
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anyone out there to help me with this? I guess i saw some answers to the cost aspect, but I would like a little schooling on what to get or how cams actually work, (explanation better than they open your vavles would be nice), and recommended cams to get that awesome sound.
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Old Jul 14, 2009 | 10:30 PM
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PM Spindoctor. He is THE man on this question!! (and many others)
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Old Jul 14, 2009 | 11:06 PM
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Most people who want an aftermarket cam have "idle sound" far down on the list of things they want from a cam.

Most every aftermarket cam will give you a different sound than stock. The more aggressive the cam, the choppier the idle.

(most aggressive cams give peak power in the high rpms, making low rpm driveability not such a nice thing.)

You wont need aftermarket heads to get the sound you desire.

Look up LG for the best cam prices.
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Old Jul 14, 2009 | 11:07 PM
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Originally Posted by tomiboy
PM Spindoctor. He is THE man on this question!! (and many others)
I second this.
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Old Jul 15, 2009 | 12:05 AM
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Originally Posted by SRTullio
Most people who want an aftermarket cam have "idle sound" far down on the list of things they want from a cam.

Most every aftermarket cam will give you a different sound than stock. The more aggressive the cam, the choppier the idle.

(most aggressive cams give peak power in the high rpms, making low rpm driveability not such a nice thing.)

You wont need aftermarket heads to get the sound you desire.

Look up LG for the best cam prices.
I know the power gains will come with pretty much any cam...but I want a pleasing sound more than anything else. I dont want to modify mine any more than bolt ons +head/cam work so I would like to get the cam right on the 1st go round. I love the choppy idle, but i dont want to take anything away from a daily driver. While I realize most people arent after a sound, I am, as I think otherwise the car is damn near perfect. I wont be throwing a blower on or anything that extreme. I just really want a sound that isnt such a pussycat.
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Old Jul 15, 2009 | 09:35 AM
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If sound is driving your decision, wait until you install your headers and exhaust and drive that combo for a month.

I didn't listen to the clip, but if all you care about is a lopey idle, a relatively low duration, tight LSA cam with an early intake close combined with a 700 rpm idle speed will get you there. Something like a 218/224 112 is fine. The GM hotcam kit is a low cost (for the parts) way to get what you need. No need to mess with the heads if sound is the primary goal. The hotcam and headers will provide a nice performance bump too.
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Old Jul 15, 2009 | 02:34 PM
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Slightly off topic, but have you guys known anyone to machine an LS/Gen IV block for Needle Camshaft Bearings?
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Old Jul 15, 2009 | 02:56 PM
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a TQV2 will sound about like that when tuned out right...put her on a 113 LSA...if you need a CAM kit give us a call we can get you one out! We can tune it to drive perfect no surging or nothing! ... specs on the cam and other info on our website under valvetrain.

www.easttexasmusclecars.com

Last edited by East Tx Muscle Cars; Jul 17, 2009 at 01:38 PM.
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Old Jul 15, 2009 | 09:35 PM
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The Torquer 2 camshaft is definately a godo camshaft for chopping & still giving good driveability. We have tons of different camshaft options & with hundreds & hundreds of hours just engine dyno testing camshafts next to each other, I think one of our TSP camshafts can get you the power & sound your looking for!
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Old Jul 16, 2009 | 10:23 AM
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Originally Posted by Jason 98 TA
The Torquer 2 camshaft is definately a godo camshaft for chopping & still giving good driveability. We have tons of different camshaft options & with hundreds & hundreds of hours just engine dyno testing camshafts next to each other, I think one of our TSP camshafts can get you the power & sound your looking for!
that is what i am tempted to buy....so drive ability will be good with a 6 speed? my tuner recommended a 228/228
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Old Jul 16, 2009 | 10:32 AM
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Originally Posted by GregC6
that is what i am tempted to buy....so drive ability will be good with a 6 speed? my tuner recommended a 228/228
we install more TQV2 cams here than all other cams combined. this is always the cam we use when a customer comes in and asks for a good size cam yet the car is a DD car
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Old Jul 16, 2009 | 05:34 PM
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Ok so The tourqer 2 sounds like a good cam. I may be in the market here soon. So I still have a few questions.

1. The cams specs out like 232/234 this is intake and exhaust valve duration I get this much, but how do these numbers effect the power produced as well as the sound?

2. .595/.598 lift. I know what these are but, how does it produce the power gains is again the question. Why is a steeper lift good or whatever here? How does it effect the sound and power curve?

3. Lastly same thing for LSA. I know what this number is as well but what effects the driveability, and where is the threshold for these numbers that suddenly make a car to difficult to drive or lose too much power on the low end?

You are suggesting a 113 LSA for this cam, but why? What are the mechanics behind all of it?

Thanks
Chad
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Old Jul 16, 2009 | 08:58 PM
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I had the T2 in my LS3 for a while. While it sounded mean and made plenty of power, it had a few issues. Low speed drivability was good, but not perfect. If you can get along with a little surge every now and then, go for it. Select something like a 224/228 with a 114LSA and you'll miss a few HP on the top end, but wind up with perfect manners. Boils down to what is important to you..
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Old Jul 16, 2009 | 11:08 PM
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what exactly is this surge i keep hearing about? I have seen numerous ppl complain about surge.

I assume that its like traction control kicking in?
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Old Jul 16, 2009 | 11:17 PM
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Surge is like having the engine search for rpm's while keeping the throttle constant. Hesitation is another way of thinking of it. It is really annoying at least for me.
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Old Jul 16, 2009 | 11:50 PM
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Originally Posted by old motorhead
I had the T2 in my LS3 for a while. While it sounded mean and made plenty of power, it had a few issues. Low speed drivability was good, but not perfect. If you can get along with a little surge every now and then, go for it. Select something like a 224/228 with a 114LSA and you'll miss a few HP on the top end, but wind up with perfect manners. Boils down to what is important to you..
Driveability is #1 then power then sound. thoughts?

Last edited by chad.orourke; Jul 16, 2009 at 11:54 PM.
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Old Jul 17, 2009 | 08:44 AM
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Originally Posted by chad.orourke
Driveability is #1 then power then sound. thoughts?
As a generalization, cam characteristics that create power cause that choppy cam sound. Conversely, the characteristics that cause good drivability cause a smooth sound. The choppy sound and drivability are at opposite ends of the spectrum. That said, the better tuners can make some fairly big cams (for example, 228/232-232/234 on a 114) quite driveable.

My goals were good low-end and mid-range torque and a choppy sound without too much of a sacrifice in drivability. I picked a 228/232, 600/600, 112 +5 Crane cam and it worked very well. My current tuner told me that he wasn't a big cam tuner but that he could make it quite drivable. He did. I have some minor hunting for a few seconds under certain weather conditions with the air on and some very minor surge at 1500-1700 in second gear. It doesn't happen in 3rd or above. He said he could make that go away, too but I have been too busy/lazy to take it to him. It isn't worth the time.

Don't go too big. Get a good tuner and you'll be fine.
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Old Jul 17, 2009 | 10:44 AM
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Originally Posted by chad.orourke
Driveability is #1 then power then sound. thoughts?
Old motorheads suggestion or the cam I suggested can both be tuned for very good drivability. I would expect the 224 cam will make more power in the upper rpms, especially 5000 - 6500. the 218 cam will be a little better in the 2500 - 3500 range.
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