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Old 06-18-2024   #1
bmarcum
 
Join Date: Oct 2018
Location: Indiana
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Default Best sounding cams

So I am dreaming of what my next z should be. I remember some (not a lot) of C4 Zr-1 that had high over lap cams and sound great at idle and at 7,000. I couldn't find the YouTube videos. Anyone have good sound videos of their or others cammed Z's? Also I never driven a cammed Z. How the power curve/drivability.
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Old 06-18-2024   #2
1991 Corvette ZR-1
 
Join Date: Sep 2018
Location: Florida
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Default Re: Best sounding cams

I have been thinking about this lately as well. Although in most cases, I believe heads are ported along with the cams. I have everything opened up, but the heads. The idea of the changed idle with cams and the shifted power range is still intriguing.

I hate to not try it if I already had the engine out of the car and cam covers off, but it is probably a cart before the horse idea, without ported heads.
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Old 06-19-2024   #3
XfireZ51
 
Join Date: May 2007
Location: Chicagoland, IL
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Default Re: Best sounding cams

Stage 1 Dr. Greekenstein cams, fully ported, headers, Xpipe, Magnaflow muffs w C6 Z06 NPP valves.

https://youtu.be/LYgBSTyLd9I?si=MGVLn-aDQA3kmJEn
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Old 06-19-2024   #4
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Default Best sounding cams

255/244 .500/.450 lift sound pretty nasty



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Old 06-23-2024   #5
bmarcum
 
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Default Re: Best sounding cams

The only thing I don't love about LT5 vs SBC is the amazing noises a high compression wide duration cam sounds on a SBC. Just curious about similar duration on LT5. Thanks @xfireZ51. Sounds good. Any revs or runs?

Also is that still 350 CID?

Last edited by bmarcum; 06-23-2024 at 04:56 PM.
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Old 06-23-2024   #6
XfireZ51
 
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Default Re: Best sounding cams

The sound of a cammed SBC is due to the necessity for high lift/ long duration to get the breathing. 4 valves do that for the LT5, so cam profile can be relatively mild in comparison for similar or better performance.
Yes its a stock block 5.7L. Dyno?d at 454rwhp@6875rpm and 402rwtq@5300rpm.
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Last edited by XfireZ51; 06-23-2024 at 05:29 PM.
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Old 06-23-2024   #7
bmarcum
 
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Default Re: Best sounding cams

WOW 454rwhp nicely done! I bet that is a ball. is that the car on your YouTube post?
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Old 06-23-2024   #8
XfireZ51
 
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Default Re: Best sounding cams

Quote:
Originally Posted by bmarcum View Post
WOW 454rwhp nicely done! I bet that is a ball. is that the car on your YouTube post?
Yes it is. The video was b4 tuning. Makes u think of what GM could have done continuing to develop that platform. Its the way it should have come from the factory.
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Last edited by XfireZ51; 06-23-2024 at 11:25 PM.
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Old 06-24-2024   #9
bmarcum
 
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Default Re: Best sounding cams

I couldn't find Stage 1 Dr. Greekenstein cams are they pepmeierengines.com cams? Or are they Pete the greeks? I remember reading about Pete work sometime ago?
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Old 06-24-2024   #10
XfireZ51
 
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Default Re: Best sounding cams

Dr. Greekenstein is my name for Pete ZR-1 work.
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