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[Z06] Against the grain

Old 06-13-2018, 02:30 PM
  #141  
Millenium Z06
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Originally Posted by jayyyw
It’s been there since I switched to ARH headers. You can see it on every ARH graph but for some reason, mine is a little more pronounced.
2" headers?
Old 06-13-2018, 02:33 PM
  #142  
Millenium Z06
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Originally Posted by Ghost Knight
No, he meant what he said. A 600whp NA Z06 will beat a 650-700whp SC Z06 driver for driver. These pare peak numbers (same dyno), where the SC graph makes more power everywhere. Real world results vs. just math. Clearly there is a way to model this mathematically (transient response, etc.), but it doesn’t change the outcome.
Exactly, Ive personally proven that many times at the "track"
Old 06-13-2018, 04:09 PM
  #143  
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Originally Posted by JesC6Z

how did that happen? Was it over reeved or not correct preload? What do you presume happened that caused the valve to hit
Not enough spring pressure and heavy exhaust valves. I was under the assumption that I had purchased my heads with hollow stem Ferrea valves and that ended up not being the case. Totally my fault for not verifying.

Originally Posted by Unreal
Doesn't take over rev if valve train is out of control.

Best of luck on the rebuild.
Thank you, that's correct. I believe it happened at the track not too long ago. During the burnout it felt like it hit the rev limiter (but i was no were near it) and the motor stumbled and shut off.

Originally Posted by lamboworld
Here you go:

243/258, .660/.660, @.050", 114+3 LSA
*GASP*


Originally Posted by lamboworld
I had the same issue. I think that he is just too busy to spec cams at this point. I had to follow-up multiple time to get specs.
Yup, oh well. Next time I will go with someone else.


Originally Posted by Millenium Z06
2" headers?
No, 1-7/8". Not sure why the dip on mine was so exaggerated. I overlayed my tuner's graph and his had the dip but it wasn't nearly as big. He runs ARH 2" headers, LME heads, and the B3 cam.
Old 06-13-2018, 04:11 PM
  #144  
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Originally Posted by jayyyw
Here’s a little idle vid. The vararam is not staying.
Thing throbs w/ a sweet idle.
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Old 06-13-2018, 04:33 PM
  #145  
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Originally Posted by Landru
Thing throbs w/ a sweet idle.
Thanks man.
Old 06-13-2018, 05:22 PM
  #146  
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Originally Posted by jayyyw
Not enough spring pressure and heavy exhaust valves. I was under the assumption that I had purchased my heads with hollow stem Ferrea valves and that ended up not being the case. Totally my fault for not verifying.



Thank you, that's correct. I believe it happened at the track not too long ago. During the burnout it felt like it hit the rev limiter (but i was no were near it) and the motor stumbled and shut off.



*GASP*




Yup, oh well. Next time I will go with someone else.




No, 1-7/8". Not sure why the dip on mine was so exaggerated. I overlayed my tuner's graph and his had the dip but it wasn't nearly as big. He runs ARH 2" headers, LME heads, and the B3 cam.
Glad the damage was very minimal. You caught it in time before a hole was in the block as others were not so lucky. Good luck with the next build.
Old 06-13-2018, 05:36 PM
  #147  
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Originally Posted by JesC6Z

Glad the damage was very minimal. You caught it in time before a hole was in the block as others were not so lucky. Good luck with the next build.
Thank you and so am I. I won't lie, I was thrown back when I first saw the damaged valve and even more so when I saw the piston.
Old 06-14-2018, 05:05 PM
  #148  
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Originally Posted by lamboworld
Here you go:

243/258, .660/.660, @.050", 114+3 LSA
Thanks man, I thought they were hush-hush?

Originally Posted by Millenium Z06
I have PRC 285 heads, 250/258 113+4 cam, 1 3/4 headers, 12.2:1 ish and a stock ported LS7 intake. Makes 601/540
TI valves? I have close to the same setup except 2” ARH and self ported MSD. Of course my car was on a conservative tune and there are a few things needing to be addressed anyway. SAE 572/492. That is sick power you have though. If my heads come off compression with be bumped 12 to 1 and a few other changes as well.

Originally Posted by jayyyw
High lift and more compression will come next year. I just want the car running. It's been a long few months where the car wasn't running correctly or hasn't been running at all. Got brand new tires on the back that I don't want to get flat spots from sitting.

If it doesn't make the power I want, it's a good thing I'll have 150 extra horses of gap insurance on top.
I understand that, that is how I feel about my car. Make 6 and just drive the thing. Not a fan of nitrous but recently have been considering that “gap insurance.” Haha.
Old 06-14-2018, 05:27 PM
  #149  
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[QUOTE=Innovate;1597407136][left]
Thanks man, I thought they were hush-hush?


I owned this cam before, which means that I can do what I want with the specs. I think that it is BS that companies withhold cam numbers because they ultimately have to share them with the owner so the cam can be installed. It is a decent cam but there are better options IMO. I will never buy a cam again when I don't know the specs first.
Old 06-14-2018, 08:08 PM
  #150  
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Originally Posted by jayyyw
Sometimes intelligence hinders your ability to account for real world results.
The only reason KingTalon is over here now cluttering up the threads, is because he finally got blocked over on LS1Tech for doing the same thing
Old 06-14-2018, 08:36 PM
  #151  
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[left][QUOTE=lamboworld;1597407309]
Originally Posted by Innovate

Thanks man, I thought they were hush-hush?


I owned this cam before, which means that I can do what I want with the specs. I think that it is BS that companies withhold cam numbers because they ultimately have to share them with the owner so the cam can be installed. It is a decent cam but there are better options IMO. I will never buy a cam again when I don't know the specs first.

I understand that man and I am the same.
Old 06-14-2018, 08:51 PM
  #152  
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Originally Posted by Innovate

Thanks man, I thought they were hush-hush?


TI valves? I have close to the same setup except 2” ARH and self ported MSD. Of course my car was on a conservative tune and there are a few things needing to be addressed anyway. SAE 572/492. That is sick power you have though. If my heads come off compression with be bumped 12 to 1 and a few other changes as well.


I understand that, that is how I feel about my car. Make 6 and just drive the thing. Not a fan of nitrous but recently have been considering that “gap insurance.” Haha.
TI Intakes, stainless exhaust, 12.2. I need bigger headers; undecided on MSD intake
Old 06-14-2018, 09:33 PM
  #153  
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Originally Posted by Millenium Z06
TI Intakes, stainless exhaust, 12.2. I need bigger headers; undecided on MSD intake
I got you, they say it is worth 20 rwhp unported but who knows lol. I found out I may want to bump compression to something like yours.
Old 06-15-2018, 09:35 AM
  #154  
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Wes's C5Z is built right... He knows every inch of that car and how to drive. Its a mad fast car! I am not sure why he hasn't picked up one of the MSD intakes, have Luke port it and Carlos retune. Its not like you don't have the capital. Pretty much everyone in our group is running the MSD on our C6Z's and we have ALL benefited from it. Its proven HP/TQ.
Wes's bank account is still recovering from his recent mods... I'm sure he'll pick one up at some point.



Originally Posted by Innovate

I got you, they say it is worth 20 rwhp unported but who knows lol. I found out I may want to bump compression to something like yours.
Old 06-15-2018, 09:41 AM
  #155  
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Originally Posted by 0H8Z06
Wes's C5Z is built right... He knows every inch of that car and how to drive. Its a mad fast car! I am not sure why he hasn't picked up one of the MSD intakes, have Luke port it and Carlos retune. Its not like you don't have the capital. Pretty much everyone in our group is running the MSD on our C6Z's and we have ALL benefited from it. Its proven HP/TQ.
Wes's bank account is still recovering from his recent mods... I'm sure he'll pick one up at some point.
Awesome, since he is already at 601, he should see 620ish or so after an MSD that is ported. I wish I did before/after of mine but I wanted this car done haha.
Old 06-15-2018, 09:46 AM
  #156  
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Its a no brainer... Wes and I use the same tuner.. Currently my stock injectors are maxed out... I am picking up some 85lb'ers pretty soon. Carlos told me he could squeeze a few more ponies out of mine.


Originally Posted by Innovate

Awesome, since he is already at 601, he should see 620ish or so after an MSD that is ported. I wish I did before/after of mine but I wanted this car done haha.
Old 06-15-2018, 09:47 AM
  #157  
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Originally Posted by 0H8Z06
Wes's C5Z is built right... He knows every inch of that car and how to drive. Its a mad fast car! I am not sure why he hasn't picked up one of the MSD intakes, have Luke port it and Carlos retune. Its not like you don't have the capital. Pretty much everyone in our group is running the MSD on our C6Z's and we have ALL benefited from it. Its proven HP/TQ.
Wes's bank account is still recovering from his recent mods... I'm sure he'll pick one up at some point.
Yeah, but I've out run all those MSD cars so I'm hesitant to touch the setup.
Second, MSD requires me to cut the cowl on my my car, between that and all the loosening bolt threads and a small pickup, I don't know that I really want to mess with an MSD. I know it'll pick up but I don't know that I believe it'll pick up 20 wheel over my setup. Probably closer to about 10 or 12 and that's not really worth $1,000 to me. I think I'd gain more out of the 1 7/8 headers.

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To Against the grain

Old 06-15-2018, 09:51 AM
  #158  
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Originally Posted by Innovate

Awesome, since he is already at 601, he should see 620ish or so after an MSD that is ported. I wish I did before/after of mine but I wanted this car done haha.
The horsepower I don't so much care about, I'm more care about the torque curve and my torque curve is very broad very flat, it's 400-plus at 2000 RPM and it's still over 500 at 6200 RPM and the torque is what's making the car so quick so I'm really hesitant to mess with anything.

It's taking a year to convince me that the 1 7/8 headers won't hurt my torque, but if they do I'll pull them off and sell them and go back to my 1 3/4
Old 06-15-2018, 10:14 AM
  #159  
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Originally Posted by 0H8Z06
Its a no brainer... Wes and I use the same tuner.. Currently my stock injectors are maxed out... I am picking up some 85lb'ers pretty soon. Carlos told me he could squeeze a few more ponies out of mine.
True that and same here, mine are at 96% duty cycle and when I put my NW102 on I may need to grab some.
Originally Posted by Millenium Z06
The horsepower I don't so much care about, I'm more care about the torque curve and my torque curve is very broad very flat, it's 400-plus at 2000 RPM and it's still over 500 at 6200 RPM and the torque is what's making the car so quick so I'm really hesitant to mess with anything.

It's taking a year to convince me that the 1 7/8 headers won't hurt my torque, but if they do I'll pull them off and sell them and go back to my 1 3/4
I understand that, anything to help torque is a plus.
Old 06-15-2018, 01:25 PM
  #160  
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Originally Posted by Millenium Z06
The horsepower I don't so much care about, I'm more care about the torque curve and my torque curve is very broad very flat, it's 400-plus at 2000 RPM and it's still over 500 at 6200 RPM and the torque is what's making the car so quick so I'm really hesitant to mess with anything.

It's taking a year to convince me that the 1 7/8 headers won't hurt my torque, but if they do I'll pull them off and sell them and go back to my 1 3/4
Could do the same with an MSD. No shortage of LS7 owners wanting add one to the mix.

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