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Reload this Page Sound clip request - Comp XR276HR-10 Cam

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Old 02-10-2008, 10:42 PM   #1
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Sound clip request - Comp XR276HR-10 Cam
Anyone that is running a Comp XR276HR-10 have a sound clip they wouldn't mind sharing? I tried looking for one to no avail. I'm starting to put my car back together with this cam and I am anxious to know what to expect.

Thanks!
Jeff
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Old 02-10-2008, 11:05 PM   #2
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Re: Sound clip request - Comp XR276HR-10 Cam
i have the 276hr it is on a 112 lobe seperation though....sound clips are in my signature with Magnaflow 3" catback
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Old 02-13-2008, 08:13 PM   #3
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Re: Sound clip request - Comp XR276HR-10 Cam
Here is my Comp 276 hyd roller cam, 0.503/0.510", 224/230 @0.05, 112 LSA, (i didn't like the 110 for EFI). Mine is the XM276HR ("marine") but the specs are exactly the same as the passenger car 276HR cam, but on a 112 LSA.

It sounds WICKED.

http://s134.photobucket.com/albums/q...t=MVI_1668.flv

This is a 327 with retrofit roller setup, Holley Stealth Ram, 24 lb injectors, World Sportsman II heads, long tubes, 2.25" dual exhaust w/ Dynomax Ultraflo's, full length exhaust system
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Old 02-13-2008, 09:17 PM   #4
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Re: Sound clip request - Comp XR276HR-10 Cam
Quote:
Originally Posted by 327_TPI_77_Maro View Post
Yes it does! I love it. Nice work!
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Old 10-20-2009, 02:58 PM   #5
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Re: Sound clip request - Comp XR276HR-10 Cam
Thread dig I know, found it on google and figured I'd chime in

http://www.youtube.com/watch?v=aB_FGkkQODs

It might sound a little different once I get it back together, I advanced the cam 4 crank degrees and swapped the 1.6 ratio rockers for 1.52. I also changed the ignition timing curve.
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Old 10-20-2009, 11:27 PM   #6
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Re: Sound clip request - Comp XR276HR-10 Cam
I just put in a XR276HR-10 in this summer. I used 1.6 Rockers, so it's .535/.544.

Stock tune, open headers, warm idle:
http://www.youtube.com/watch?v=ReO4ycnrrCA

Tuned, cold start:
http://www.youtube.com/watch?v=qljg0v5b3hA

Tuned, warm start (wait for it to idle down around 30 seconds in)
http://www.youtube.com/watch?v=ZjzPtVme_T0

Drive away. Just started tuning it in this video. It stalled, that's why the video starts with me starting it, and the puff of black smoke coming out. Haha.
http://www.youtube.com/watch?v=QMfJeSDq2qc


It definitely has an aggressive choppy idle. I'm happy with mine. I took it to 6000 RPM, and it pulled strong all the way.
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Last edited by IROCThe5.7L; 10-20-2009 at 11:43 PM.
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