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Old Nov 29, 2011 | 06:42 PM
  #21  
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Originally Posted by Lifted07Sierra
He basically wants what I want and thats more torque and power from 2500-5000, basically more FUN power instead of track power.
That's a good way to put it.
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Old Nov 29, 2011 | 10:04 PM
  #22  
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Haven't run into any smog police in the New Orleans area, when I have the money I will be going with a 224/224 .580" 114 advanced 4*. ARH LT 1 3/4's and a Vararam. 3:73 or 3:90 diff on a 6speed. Would like to have TEA or Advanced Induction do a clean up, valve job, and -010" on whatever stock heads that came on my '01. But $$$ will determine how complete the mods are.

Last edited by had2have-it; Nov 29, 2011 at 10:27 PM.
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Old Nov 29, 2011 | 10:47 PM
  #23  
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I'm sure a set of 243's would do just fine, or you might consider sending you stock 241's to AI. They seem to have a pretty effective CNC program that really wake the stockers up, you could save money on buying the core (243's $450) or core charges and I think that only runs about $1000 for the porting. I'm sure you could get around 420rwhp and meet all your other goals at a reasonable price.
Originally Posted by mcm95403
I'll have to see how much $$ I have left for heads after I get all the other things for the cam install. While I'm in there it's going to get lifter, pushrods, CompCams trunion upgrade, oil pump, water pump, and who knows what else will crop up.
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Old Nov 30, 2011 | 12:58 AM
  #24  
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Originally Posted by hardcore4sure
I'm sure a set of 243's would do just fine, or you might consider sending you stock 241's to AI. They seem to have a pretty effective CNC program that really wake the stockers up, you could save money on buying the core (243's $450) or core charges and I think that only runs about $1000 for the porting. I'm sure you could get around 420rwhp and meet all your other goals at a reasonable price.

New, ported 243's are only a couple of hundred more than that - the difference would be eaten up quickly in shipping, plus the new ones come with good springs, new valves, titanium retainers etc.

I think I'd be very happy with ported 243's for what I expect out of it.
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Old Nov 30, 2011 | 01:52 AM
  #25  
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True true very true! Well I'll be waiting to see how your build turns out, cuz mine seems f**ked at this point. But I like where your going with it, FUN power over TRACK power!
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Old Nov 30, 2011 | 07:43 AM
  #26  
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AFR 205s at 59cc with the Tony M cam of 224/228 581/588 113 should pass KA emissions
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Old Nov 30, 2011 | 07:22 PM
  #27  
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Originally Posted by mcm95403
As CR goes up, NOx emissions go up. The converters should take care of it, but the tiny gain from the CR increase wouldn't be worth it for me. I'd rather have 10:1 and be able to run on regular (like I can now) than have 11:1 and have to run premium and still be on the ragged edge.
Oh, if you're happy running 87 oct. then by all means leave the CR alone. I keep forgetting LS1s have 10:1 stock instead of 10.5:1 like my car did stock. Don't know anybody with a Z that uses reg. You really sound like a guy that would be better off trading for a LS3 equipped car, and leave it stock. By doing cam/heads/etc, it becomes a slippery slope that can cost alot more money than just starting with a more powerful engine. Alot depends on whether you do your own wrenching, or pay someone else. If I had a coupe, I'd already be in a C6.
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Old Nov 30, 2011 | 07:26 PM
  #28  
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What are you looking for out of the car? Are you sure a nice cam wouldn't do the trick? I mean you are 7rwhp lower than me and for street I think after adding a cam to mine it'll be plenty. 380-390rwhp
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Old Dec 1, 2011 | 02:39 AM
  #29  
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Originally Posted by Lifted07Sierra
What are you looking for out of the car? Are you sure a nice cam wouldn't do the trick? I mean you are 7rwhp lower than me and for street I think after adding a cam to mine it'll be plenty. 380-390rwhp
A cam alone could well do the trick. My problem is always that I want it all to be "right". I'll think about it more since I don't "need" a cam and will be accumulating the parts anyways over the next few months.
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Old Dec 1, 2011 | 10:58 AM
  #30  
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Looks like EPS has a very similar cam: http://www.engpwrsys.com/index.php?a...od&productId=9

214/232 and .607/.598 on a 117 LSA

I like the slightly shorter duration and wider LSA
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Old Dec 1, 2011 | 12:45 PM
  #31  
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Here is another guy looking to do the same type of build.
bartmanC5
I'm running a 2002 C5 M6 Convertible (68k miles), and am working up the nerve for my first heads/cam project this winter. My car currently is stock but for axle-back exhaust, and already has LS6 intake, LS6 28lb injectors. Fair-weather summer daily driver, 95% street use but a couple track events each Hyear. Most driving is sub-5k RPM, so I like my torque. I like the current exhaust note (but could use some lope), and the stock power level is nearly adequate.

I have a leaking front seal and wouldn't mind a bump in power while I'm tearing it open. Trying to do a budget build, doing my own work except the tune. I don't want to go long-tubes, nor do I want a 500hp tire-eating monster.

So far I've picked up a K&N FIPK air intake, new lifters, and a low mile take-off bundle: '03 Z06 LS6 heads (sodium valves) / cam / rods / springs. Gaskets, dampner, timing chain, and oil pump TBD.

It would seem I am nearly there for a Z06 conversion if I wanted it. Except I used the search here and came up with several discussions about torquey cams using stock manifolds, one in particular. It sounds right up my alley, and nearly identical to my configuration.g


(2009) 218/230 .595/.598 115LSA +4 EPS Cam 403 rwhp LS1 with stock exhaust manifolds and mild cam
http://www.ls1tech.com/forums/dynamo...-mild-cam.html

Sorry for all the questions - I've been chewing on this for a while. I'm torn between the LS6 versus 218/230 cam.

Will this cam have a noticeable lope, or is it really "stealth"?

I would get new springs and rods for the higher lift. What about rockers, fuel injectors, something else?

Is the original clutch heading for trouble, or should it hold either?

Any other parts upgrades suggested while I'm in there?

Cost-wise, the EPS route adds at least $700+ to the project, but can recoup some of that by selling the Z06 cam & springs.

Both cams bump the rev limiter, but the EPS would have better area under the curve? Z06 would probably net 370 rwhp, but 400+ with the EPS is tempting.

After the cam swap, will I need to trailer the car to the tuner, or should it be drivable for 40 miles?

Does anyone have an LS1 cam vs LS6 cam dyno overlayed on the same graph? I'm curious if I should see the +30TQ from 2200rpm all the way up like the EPS, or which one "wins" at lower rpm.


Thanks for any input.
__________________
Bart

I recommend spending the $25 and have PatG or Geoff spec you cam, the off the shelf grind may have you leaving some power on the table... This is where this guy is
*
" Ok, after a few back-n-forths with Patrick I'm settled on a cam. His suggestion:

222 / 226 115LSA +3, .597 / .598 lift.
PAC 1518's, Untouched 243s, retainers, and locks. 6600 rpm limit.
SCR 10.5, DCR 8.20 He bumped up intake & down exhaust duration "because of the Vette's light weight and better than typical cat-back exhaust". He suggested the 222/226 would match the 218/230 in the lower RPMs, but would excel in the higher RPMs."
I've settled on avoiding the cost of head-work for now since the 243's are nice and tight. The remaining debate is over the target CR, and I'm leaning toward option 1.
1) Use Cometic .040" gasket for 10.9:1 CR, and switch to 91 octane. DCR bumps to 8.4.

2) Stick with GM MLS gasket for 10.5:1 CR and lower 89 octane.

Last edited by hardcore4sure; Dec 1, 2011 at 12:59 PM.
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Old Dec 1, 2011 | 07:08 PM
  #32  
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Originally Posted by hardcore4sure
Here is another guy looking to do the same type of build.
bartmanC5
I'm running a 2002 C5 M6 Convertible (68k miles), and am working up the nerve for my first heads/cam project this winter. My car currently is stock but for axle-back exhaust, and already has LS6 intake, LS6 28lb injectors. Fair-weather summer daily driver, 95% street use but a couple track events each Hyear. Most driving is sub-5k RPM, so I like my torque. I like the current exhaust note (but could use some lope), and the stock power level is nearly adequate.

I have a leaking front seal and wouldn't mind a bump in power while I'm tearing it open. Trying to do a budget build, doing my own work except the tune. I don't want to go long-tubes, nor do I want a 500hp tire-eating monster.

So far I've picked up a K&N FIPK air intake, new lifters, and a low mile take-off bundle: '03 Z06 LS6 heads (sodium valves) / cam / rods / springs. Gaskets, dampner, timing chain, and oil pump TBD.

It would seem I am nearly there for a Z06 conversion if I wanted it. Except I used the search here and came up with several discussions about torquey cams using stock manifolds, one in particular. It sounds right up my alley, and nearly identical to my configuration.g


(2009) 218/230 .595/.598 115LSA +4 EPS Cam 403 rwhp LS1 with stock exhaust manifolds and mild cam
http://www.ls1tech.com/forums/dynamo...-mild-cam.html

Sorry for all the questions - I've been chewing on this for a while. I'm torn between the LS6 versus 218/230 cam.

Will this cam have a noticeable lope, or is it really "stealth"?

I would get new springs and rods for the higher lift. What about rockers, fuel injectors, something else?

Is the original clutch heading for trouble, or should it hold either?

Any other parts upgrades suggested while I'm in there?

Cost-wise, the EPS route adds at least $700+ to the project, but can recoup some of that by selling the Z06 cam & springs.

Both cams bump the rev limiter, but the EPS would have better area under the curve? Z06 would probably net 370 rwhp, but 400+ with the EPS is tempting.

After the cam swap, will I need to trailer the car to the tuner, or should it be drivable for 40 miles?

Does anyone have an LS1 cam vs LS6 cam dyno overlayed on the same graph? I'm curious if I should see the +30TQ from 2200rpm all the way up like the EPS, or which one "wins" at lower rpm.


Thanks for any input.
__________________
Bart

I recommend spending the $25 and have PatG or Geoff spec you cam, the off the shelf grind may have you leaving some power on the table... This is where this guy is
*
" Ok, after a few back-n-forths with Patrick I'm settled on a cam. His suggestion:

222 / 226 115LSA +3, .597 / .598 lift.
PAC 1518's, Untouched 243s, retainers, and locks. 6600 rpm limit.
SCR 10.5, DCR 8.20 He bumped up intake & down exhaust duration "because of the Vette's light weight and better than typical cat-back exhaust". He suggested the 222/226 would match the 218/230 in the lower RPMs, but would excel in the higher RPMs."
I've settled on avoiding the cost of head-work for now since the 243's are nice and tight. The remaining debate is over the target CR, and I'm leaning toward option 1.
1) Use Cometic .040" gasket for 10.9:1 CR, and switch to 91 octane. DCR bumps to 8.4.

2) Stick with GM MLS gasket for 10.5:1 CR and lower 89 octane.
As usual, Patrick knows his cams; I think you'll love it. Should have a little lope at near stock idle. I would go with the Cometics, and I like to use copper spray when installing the gaskets for insurance. GL.
Reply




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