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Old 11-19-2019, 10:43 AM   #171
Glenn Hayes
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Default Re: Nova stocker project.

Very well done and fast !
Let us know how your freshened engine works out.
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Old 11-19-2019, 11:20 AM   #172
Mark Yacavone
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Default Re: Nova stocker project.

Good that you found those problems early.
Looking forward to those dyno sheets.
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Old 11-19-2019, 06:45 PM   #173
Alan Nyhus
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Default Re: Nova stocker project.

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Originally Posted by Mark Yacavone View Post
Good that you found those problems early.
Yes...the lobes had begun to look herky earlier in the season but the leading/trailing edges of the nose were still okay. The lash wasn't changing but toward the end of the season it got 'flat' and unresponsive to changes so I wasn't surprised to see half a dozen like this when I took it apart.

The last pass on it was at the Div 5 Nat. Open at Kearney, Ne and it went -.88 and change under.

Stocker Life.....

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Old 11-19-2019, 07:10 PM   #174
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Default Re: Nova stocker project.

What lifter are you using and how crazy is the spring pressure?
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Old 11-19-2019, 07:16 PM   #175
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Smile Re: Nova stocker project.

tell us what you found out about the spots on the cam lobes. I had the same thing happen on two different engines and got all kinds of reason's for it happening but nothing definite. Oil, spring pressure,lifters etc... etc. Sure would be nice to know for sure what caused it.
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Old 11-19-2019, 08:05 PM   #176
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Default Re: Nova stocker project.

Alan

You should think about running the Stock Super Stock combo races @ Bandimere. There will be several G/SA cars there, so your Chevy will feel right at home. Denver's cars are usually fast so you'll have good cars to compare to.
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Old 11-19-2019, 08:50 PM   #177
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Default Re: Nova stocker project.

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Alan, You should think about running the Stock Super Stock combo races @ Bandimere. There will be several G/SA cars there, so your Chevy will feel right at home. Denver's cars are usually fast so you'll have good cars to compare to.
Making plans to head that way next season. -Al
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Old 11-19-2019, 09:09 PM   #178
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Default Re: Nova stocker project.

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Making plans to head that way next season. -Al
Thats great! Let me know when your coming. I think in this area of the country the Denver weather is better, the track is better, less wind, of course the baro is horrible but its all relative. Kearney is always a train wreck for me, I like the town but never seen to be able to get it done there, the weather always gets me.
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Old 11-20-2019, 08:20 AM   #179
Alan Nyhus
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Default Re: Nova stocker project.

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What lifter are you using and how crazy is the spring pressure?
Trend lifters and PAC 1409X springs.

https://www.racingsprings.com/index....ring-8086.html

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tell us what you found out about the spots on the cam lobes. I had the same thing happen on two different engines and got all kinds of reason's for it happening but nothing definite. Oil, spring pressure,lifters etc... etc. Sure would be nice to know for sure what caused it.
Bill, I think there's just a certain life expectancy of this style of lobe. There's a tremendous amount of pressure concentrated on a very narrow 'peak' on both the opening and closing sides of the lobe.

This would be a good topic for the Tech section, for sure. -Al
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Old 11-20-2019, 07:29 PM   #180
Sean Marconette
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Default Re: Nova stocker project.

Alan,
Good luck during the off-season! No rest for those in a performance based category, as there is always something to improve on or look at.

Sean
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