[Z06] 100K+ Club
11-06-2014, 01:20 PM
#21
Melting Slicks
So is there something broken? What is WCCH gunna fix?
Be aware that Richard believes the stock valves are what cause the issues some have had with LS7 heads and yet guys like the OP have the ultimate proof that there isn't a damn thing wrong with the stock valves.
Cheers, Paul.
Be aware that Richard believes the stock valves are what cause the issues some have had with LS7 heads and yet guys like the OP have the ultimate proof that there isn't a damn thing wrong with the stock valves.
Cheers, Paul.
Also, I don't necessarily agree that just because you hit 100k is ultimate proof that there isn't anything wrong with the stock valves. There have also been stock valves that have failed, so how is that ultimate proof?
Last edited by dmuellenberg; 11-06-2014 at 01:24 PM.
11-06-2014, 01:27 PM
#22
Melting Slicks
11-06-2014, 05:00 PM
#23
Melting Slicks
No, nothing is broken right now, but at 100k I figured the heads could use a refresh anyway and hopefully it will last another 100k. I think of it more as preventive maintenance, kind of like changing oil. You don't change oil only when something is broken, but to keep things fresh and prevent future problems. Besides, I have heard of quite a few stock valves that have failed but yet to hear of a failed valve in a WCCH fixed head. Don't get me wrong, I'm not saying that stock hollow valves are the problem but I also don't think solid valves are a bad thing and they could possibly hold up better in the case of worn guides.
Also, I don't necessarily agree that just because you hit 100k is ultimate proof that there isn't anything wrong with the stock valves. There have also been stock valves that have failed, so how is that ultimate proof?
Also, I don't necessarily agree that just because you hit 100k is ultimate proof that there isn't anything wrong with the stock valves. There have also been stock valves that have failed, so how is that ultimate proof?
Don't get me wrong here, there's nothing wrong with a solid SS valve as long as you have the right spring to control it and to the best of my knowledge Richard hasn't done any spintron testing to determine WHAT spring that would be. Of course as an alternative you could simply stay away from 7000 rpm but after 100,000 miles of NOT having to do so, it may take a little practice
Cheers, Paul.
11-06-2014, 11:49 PM
#24
Safety Car
Richard may not have done spintron testing, but he has hundreds of his reworked LS7 heads running SS valves and his choice of springs. Many of these are seeing significant track use running to 7000 rpms several times a lap. I've got over 10,000 miles with many track days on mine. I have hit 7000 rpms probably several hundred times. I hoping for many more!
11-07-2014, 11:22 AM
#25
Melting Slicks
For those of us that haven't read all the threads related to SS valves, what is the proof?
Richard may not have done spintron testing, but he has hundreds of his reworked LS7 heads running SS valves and his choice of springs. Many of these are seeing significant track use running to 7000 rpms several times a lap. I've got over 10,000 miles with many track days on mine. I have hit 7000 rpms probably several hundred times. I hoping for many more!
Richard may not have done spintron testing, but he has hundreds of his reworked LS7 heads running SS valves and his choice of springs. Many of these are seeing significant track use running to 7000 rpms several times a lap. I've got over 10,000 miles with many track days on mine. I have hit 7000 rpms probably several hundred times. I hoping for many more!
Boatloads of stock set-ups have gone WAY more than 10,000 miles with many track days and yet the forum 'gurus' along with Richard declare the stock set-up junk.
IF Richard's recommendation for a spring to control the heavier valve is based on something more than "This is what I've always used and it seems to work." it is certainly possible you have a spring that will continue to work well for you, otherwise, well hold your breath because something bad may be coming your way.
It's not rocket science, just call someone like PAC, they spend hundreds of thousands of dollars every year doing Spintron testing and thus they can tell you exactly what spring will do the job and for how long. H*ll maybe Richard has even made such a call, but based on the combination he recommended that got tested a while back I have my doubts.
Cheers, Paul.
Last edited by MTIRC6Z; 11-07-2014 at 11:26 AM.
11-13-2014, 10:54 PM
#27
Instructor
Member Since: Jan 2010
Location: Palm Bay FL
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118+K miles here.
2,000+ track miles. 160 MPH at Daytona two weeks ago at 117K miles (taking it easy). A lot of hard laps (around 2:30/lap) at Sebring @103K miles in March 2014. Heads were rebuilt with stock parts at 75K, turned over 99,999 bouncing of the 7200 RPM limiter in third gear.
2,000+ track miles. 160 MPH at Daytona two weeks ago at 117K miles (taking it easy). A lot of hard laps (around 2:30/lap) at Sebring @103K miles in March 2014. Heads were rebuilt with stock parts at 75K, turned over 99,999 bouncing of the 7200 RPM limiter in third gear.
11-14-2014, 12:15 PM
#29
Burning Brakes
8300 miles on my 06. I'll check back on this thread in about 25 years or so. I should have close to 100k miles by then.
Don't plan to sell it but there's always new toys coming out so you never know....
It's good to see that not all stock c6z's go KABOOM!
Don't plan to sell it but there's always new toys coming out so you never know....
It's good to see that not all stock c6z's go KABOOM!
Last edited by Fabio-Z06; 11-14-2014 at 12:18 PM.
11-14-2014, 03:53 PM
#31
Team Owner
For those of us that haven't read all the threads related to SS valves, what is the proof?
Richard may not have done spintron testing, but he has hundreds of his reworked LS7 heads running SS valves and his choice of springs. Many of these are seeing significant track use running to 7000 rpms several times a lap. I've got over 10,000 miles with many track days on mine. I have hit 7000 rpms probably several hundred times. I hoping for many more!
Richard may not have done spintron testing, but he has hundreds of his reworked LS7 heads running SS valves and his choice of springs. Many of these are seeing significant track use running to 7000 rpms several times a lap. I've got over 10,000 miles with many track days on mine. I have hit 7000 rpms probably several hundred times. I hoping for many more!
A couple of weeks back I started a thread which was closed down. I had great pictures of cracking OEM valves supplied by the person you are referencing. If you didn't see the pictures I will repost them for you.
DH
11-14-2014, 07:18 PM
#32
Safety Car
Yes, let's fire bomb this thread with all of the same old **** from the same 4-5 guys that got the last 37 threads on this locked by arguing about the same stuff with the same logic as last year. And the year before that....
It would be easier to just post URLs in your sig! Lol.
It would be easier to just post URLs in your sig! Lol.
11-14-2014, 07:38 PM
#33
Burning Brakes
Madsen...the short story is, replaced stock valves with SS but didn't do the guides, failure arrived shortly thereafter, not much different than many of the stock valves which have been run in bad guides.
Boatloads of stock set-ups have gone WAY more than 10,000 miles with many track days and yet the forum 'gurus' along with Richard declare the stock set-up junk.
IF Richard's recommendation for a spring to control the heavier valve is based on something more than "This is what I've always used and it seems to work." it is certainly possible you have a spring that will continue to work well for you, otherwise, well hold your breath because something bad may be coming your way.
It's not rocket science, just call someone like PAC, they spend hundreds of thousands of dollars every year doing Spintron testing and thus they can tell you exactly what spring will do the job and for how long. H*ll maybe Richard has even made such a call, but based on the combination he recommended that got tested a while back I have my doubts.
Cheers, Paul.
Boatloads of stock set-ups have gone WAY more than 10,000 miles with many track days and yet the forum 'gurus' along with Richard declare the stock set-up junk.
IF Richard's recommendation for a spring to control the heavier valve is based on something more than "This is what I've always used and it seems to work." it is certainly possible you have a spring that will continue to work well for you, otherwise, well hold your breath because something bad may be coming your way.
It's not rocket science, just call someone like PAC, they spend hundreds of thousands of dollars every year doing Spintron testing and thus they can tell you exactly what spring will do the job and for how long. H*ll maybe Richard has even made such a call, but based on the combination he recommended that got tested a while back I have my doubts.
Cheers, Paul.
YUP I did.....
11-14-2014, 08:56 PM
#37
Drifting
90k on my '08.
had the heads/cam/headers done at 39k. I'd say the reasoning for the upgrades were about 40% preventative, and 60% for the extra power.
Other than a wheel bearing going out around the 45k mark the car has been rock solid..
had the heads/cam/headers done at 39k. I'd say the reasoning for the upgrades were about 40% preventative, and 60% for the extra power.
Other than a wheel bearing going out around the 45k mark the car has been rock solid..
11-14-2014, 09:33 PM
#38
Team Owner
Yes, let's fire bomb this thread with all of the same old **** from the same 4-5 guys that got the last 37 threads on this locked by arguing about the same stuff with the same logic as last year. And the year before that....
It would be easier to just post URLs in your sig! Lol.
It would be easier to just post URLs in your sig! Lol.
DH
11-15-2014, 11:26 AM
#39
Burning Brakes
Don't waste your breath. I have gone around and round with some members who I just can't convince that a SS valve is stronger and will last longer especially in a hostile environment that a hollow OEM valve.
A couple of weeks back I started a thread which was closed down. I had great pictures of cracking OEM valves supplied by the person you are referencing. If you didn't see the pictures I will repost them for you.
DH
A couple of weeks back I started a thread which was closed down. I had great pictures of cracking OEM valves supplied by the person you are referencing. If you didn't see the pictures I will repost them for you.
DH
Who would want to put any valve , made of any material in a hostile environment?
You are implying that the hostile environment is the problem or do you not see that?
So, "eliminating the hostile environment" should be your mantra instead of "use a stronger valve"
11-15-2014, 11:37 AM
#40
Why in the world do you keep making the same ridiculous statement.
Who would want to put any valve , made of any material in a hostile environment?
You are implying that the hostile environment is the problem or do you not see that?
So, "eliminating the hostile environment" should be your mantra instead of "use a stronger valve"
Who would want to put any valve , made of any material in a hostile environment?
You are implying that the hostile environment is the problem or do you not see that?
So, "eliminating the hostile environment" should be your mantra instead of "use a stronger valve"
How does one eliminate the "hostile environment", and how are they sure that "hostile environment" truly is gone?