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ls-3 cam choice's Lets talk.

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Old Jan 8, 2008 | 09:27 PM
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Default ls-3 cam choice's Lets talk.

I thought, I read that the Ls-3 has a longer exhaust Valves by 2mm.

This explain's why the shorter ex. lobes of the stock cam.
I want to get a good streetable grind. So will the cam
need to allow for the longer valve's.
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Old Jan 8, 2008 | 10:48 PM
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I like this one:

http://forums.corvetteforum.com/show....php?t=1907333

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Old Jan 8, 2008 | 11:45 PM
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Originally Posted by LS1LT1
no offense, but Im not impressed......... only 415 rwtq?
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Old Jan 9, 2008 | 12:38 AM
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I don't think that Cartek released the specs on that cam. Other than saying it was a mild street cam.

If you consider that stock LS3s dyno around 390 hp....... 463 Hp & 415 rwtq is a impressive number.......... Cartek usually does not build dyno queens but 1/4 racers. High Dyno numbers do not always transulate into fast 1/4 mile times.

The only real way to know If a car is really fast is to race it at the track Otherwise we are all just bench racing.
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Old Jan 9, 2008 | 01:00 AM
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These guys seem to have good ideas: VengeanceRD

In your case, I bet this would be a good one.
VRX5 236/238 .601/.605. Choose your LSA per components.
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Old Jan 9, 2008 | 01:16 AM
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Originally Posted by C6 DVL
no offense, but Im not impressed......... only 415 rwtq?
Only?
I've seen a Cartek 'cam only' Corvette with only 380rwtq go 10.9s...they've had cars making only 410 rwtq running 10.5s for that matter. That certainly impresses me.
If one is merely looking for high dyno numbers ONLY then I guess a shop that builds seriously track proven cammed/heads and cam cars isn't for them.
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Old Jan 9, 2008 | 07:12 AM
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If one is merely looking for high dyno numbers ONLY then I guess a shop that builds seriously track proven cammed/heads and cam cars isn't for them
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Old Jan 9, 2008 | 08:30 AM
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Originally Posted by Rock'n Blue 08
I thought, I read that the Ls-3 has a longer exhaust Valves by 2mm.

This explain's why the shorter ex. lobes of the stock cam.
I want to get a good streetable grind. So will the cam
need to allow for the longer valve's.

Do you have a manual or auto?

Would you like some lope or none?

Do you want high power or moderate?

Do you have FI plans?

Having asked these questions, my LG cam is awesome, in the
495HP/440 TQE range, but the car does have a bit of a muscle car sound to it (which I LOVE!). However, It probably wouldn't be the best cam for an auto (a little choppy).
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Old Jan 9, 2008 | 08:56 AM
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Originally Posted by Rock'n Blue 08
I thought, I read that the Ls-3 has a longer exhaust Valves by 2mm.

This explain's why the shorter ex. lobes of the stock cam.
Are you referring to the base circle of the cam or implying that the length of valve stem somehow effects duration? The exhaust lobe of the LS3 stock cam has the exact same lift, duration, and area under the curve of the LS2 exhaust lobe. Other posts indicate that Comp lobes for the LSx family work for the LS3, so I would not be concerned if the valve stem is in fact 2mm longer on the LS3 (I have not looked it up and express no opinion on its size).

I want to get a good streetable grind.
Streetable is in the eye of the beholder. The questions posed by LS3 Machine are good ones. I'd also suggest posting your driving style and where you want the power in the rpm band.
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Old Jan 9, 2008 | 09:29 AM
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Originally Posted by Tommy D
I don't think that Cartek released the specs on that cam. Other than saying it was a mild street cam.

If you consider that stock LS3s dyno around 390 hp....... 463 Hp & 415 rwtq is a impressive number.......... .
reason I say that my base dyno was 392rwhp/376rwtq, with LG headers, Vararam, Ported TB & a tune, I dyno'd 416rwhp/416rwtq, and thats with the 4:10s !

If I was going to do a mild cam, I would expect to be in the area 450rwhp/rwtq

Originally Posted by LS1LT1
Only?
I've seen a Cartek 'cam only' Corvette with only 380rwtq go 10.9s...they've had cars making only 410 rwtq running 10.5s for that matter. That certainly impresses me.
If one is merely looking for high dyno numbers ONLY then I guess a shop that builds seriously track proven cammed/heads and cam cars isn't for them.
At the track it's all about the driver, same car, diff drivers can results can vary up to 7 tenths
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Old Jan 9, 2008 | 10:00 AM
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Originally Posted by C6 DVL
reason I say that my base dyno was 392rwhp/376rwtq, with LG headers, Vararam, Ported TB & a tune, I dyno'd 416rwhp/416rwtq, and thats with the 4:10s !

If I was going to do a mild cam, I would expect to be in the area 450rwhp/rwtq



At the track it's all about the driver, same car, diff drivers can results can vary up to 7 tenths
seriously a peak high dyno number means nothing except bragging rights and the guy who is 7/10s slower cant drive at all and needs lessons. sometimes the best mod is driver
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Old Jan 9, 2008 | 10:10 AM
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Originally Posted by dennis50nj
seriously a peak high dyno number means nothing except bragging rights and the guy who is 7/10s slower cant drive at all and needs lessons. sometimes the best mod is driver
I don't think mine are a serious peak dyno numbers......
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Old Jan 9, 2008 | 10:16 AM
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Originally Posted by dennis50nj
seriously a peak high dyno number means nothing except bragging rights and the guy who is 7/10s slower cant drive at all and needs lessons. sometimes the best mod is driver
While I understand that some throttle control is needed, how much difference can a driver make on an Automatic that is setup specificaly for drag racing???

Taking a stick down the track is a very different story...
This CAN result is a very wide varience of times!!

Power under the curve, torque, being able to put down the power, track conditions and DA will determine one's time at the track.

I'm at 448 RWHP and 440 RWT with plenty of power under the curve, and no cam...
Good day!

JB
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Old Jan 9, 2008 | 10:19 AM
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Originally Posted by C6 DVL
I don't think mine are a serious peak dyno numbers......
Nice #s! no peaks there...
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Old Jan 9, 2008 | 10:48 AM
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guys, sorry, but some of the fastest et'ing cars have come from some of the lowest dyno drum pushing cars. anyone care to look up robz's cam only times/traps in a c5z? with like 396rwhp?

I don't care what carteks rollers spit out....they seem to produce real world et's and MPH trap once tire gets off a drum and hits pavement. I couldn't care less about drum racing
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Old Jan 9, 2008 | 11:23 AM
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Originally Posted by BLU-BY-U
guys, sorry, but some of the fastest et'ing cars have come from some of the lowest dyno drum pushing cars. anyone care to look up robz's cam only times/traps in a c5z? with like 396rwhp?

I don't care what carteks rollers spit out....they seem to produce real world et's and MPH trap once tire gets off a drum and hits pavement. I couldn't care less about drum racing
Do you think the LS3 with Cartek cam that made 460 and 419 would pull the LG LS3 Cam car that made 507 and 450 rwhp and rwtq..???
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Old Jan 9, 2008 | 11:57 AM
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Originally Posted by jbsblownc5
While I understand that some throttle control is needed, how much difference can a driver make on an Automatic that is setup specificaly for drag racing???

Taking a stick down the track is a very different story...
This CAN result is a very wide varience of times!!

Power under the curve, torque, being able to put down the power, track conditions and DA will determine one's time at the track.

I'm at 448 RWHP and 440 RWT with plenty of power under the curve, and no cam...
Good day!

JB
jb read the list!! i guess the driver can make 6/10s difference in an ls2 auto over the next ls2 and 3/10s difference over a more powerful ls3 and 7/10s over the guy with 455 rwhp and beat a zo6 every time he raced i have ran sticks and ran pro and super pro for years with a street car. if you can drive a stick!! it can be very consistent. don't make excuses you run what you brung maybe my next will be a stick so i can show you. everything you stated power under the curve, torque, being able to put down the power, track conditions and da, all apply to an auto, and stick, that's where the driver comes in that's where the clutch and throttle technique shine i thought your dyno was 455 rwhp not 448 with no cam, cant wait to see NOSLO6 track times
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Old Jan 9, 2008 | 01:14 PM
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Originally Posted by 04_Z06_CE
Do you think the LS3 with Cartek cam that made 460 and 419 would pull the LG LS3 Cam car that made 507 and 450 rwhp and rwtq..???
in C6 Tech theory a 460/419 should beat 507/450, for some simple political reasons

I'd love to put a stealth mannered cam in my LS3 that would net me mid/high 400 rwhp/rwtq
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Old Jan 9, 2008 | 01:46 PM
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Originally Posted by C6 DVL
in C6 Tech theory a 460/419 should beat 507/450, for some simple political reasons

I'd love to put a stealth mannered cam in my LS3 that would net me mid/high 400 rwhp/rwtq
its not political!!! its magical, CARTEK magic. go get some
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Old Jan 9, 2008 | 02:16 PM
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Originally Posted by 04_Z06_CE
Do you think the LS3 with Cartek cam that made 460 and 419 would pull the LG LS3 Cam car that made 507 and 450 rwhp and rwtq..???

hmm, possibly. Have you looked at the lg dyno? it's very peaky and shifted far to the right side of the graph. that car is a sure candidate for some 4.10 gears. I'd wager that the graph from cartek will provide more area under the curve off idle to 4500 rpms. but regardless, I'd like to see some real world track times out of both setups, thats what counts to me.
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