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Whining noise after cam?

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Old 03-18-2012, 06:19 PM   #1
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Default Whining noise after cam?

So I finished my little cam install yesterday, car runs awesome other then the idle a bit low. But I am now getting this whine, sounds like when the alternator would be taking a **** on a older car! It's not very loud but I can hear it when I rev the engine and drive it. It does not do it at idle, starts just before 2k would say. It's driving me crazy, I did have a little misshap with some coolant, got all over the front of the engine. Could it be the air conditioner, sounds like an electrical wine to me.

I do have about 3 hrs of driving already, and beat the **** out of it for the last hour and I am not noticing anything at all wrong with the car other then it's pretty beast! I have to figure this noise out though
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Old 03-18-2012, 06:48 PM   #2
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Did you accidentally install a supercharger?
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Old 03-18-2012, 07:05 PM   #3
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Did you change timing chain with cam?
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Old 03-18-2012, 07:24 PM   #4
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No I reused the stock chain, also stayed with a single bolt so the cam went in same as stock.
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2010 ABM LS3...
Baby 217/228 .565 cam, 3" pipes dumped at rear, long tubes, th400 swap 3600 stall. 11.7@118 first time out so far!


1970 cutlass supreme, built 455, stalled, 12 bolt 4.10s 11.60s 113mph sold

Stock C5 vette 13.0@107 sold
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Old 03-19-2012, 07:51 AM   #5
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Any idea's guys?
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2010 ABM LS3...
Baby 217/228 .565 cam, 3" pipes dumped at rear, long tubes, th400 swap 3600 stall. 11.7@118 first time out so far!


1970 cutlass supreme, built 455, stalled, 12 bolt 4.10s 11.60s 113mph sold

Stock C5 vette 13.0@107 sold
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Old 03-26-2012, 02:14 PM   #6
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post a vid
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Old 04-06-2014, 04:40 PM   #7
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Quote:
Originally Posted by sweetC5 View Post
So I finished my little cam install yesterday, car runs awesome other then the idle a bit low. But I am now getting this whine, sounds like when the alternator would be taking a **** on a older car! It's not very loud but I can hear it when I rev the engine and drive it. It does not do it at idle, starts just before 2k would say. It's driving me crazy, I did have a little misshap with some coolant, got all over the front of the engine. Could it be the air conditioner, sounds like an electrical wine to me. I do have about 3 hrs of driving already, and beat the **** out of it for the last hour and I am not noticing anything at all wrong with the car other then it's pretty beast! I have to figure this noise out though
I just finished my LS3 install and have the same problem. Does it sound like this ??

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Old 04-06-2014, 05:29 PM   #8
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Whining Noise After Cam Change
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Old 04-07-2014, 03:36 AM   #9
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Was it a Comp cam? If so, there is your problem. They must not have felt like putting that one thru QC.
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Old 04-07-2014, 07:02 AM   #10
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Was it a Comp cam? If so, there is your problem. They must not have felt like putting that one thru QC.
. Mine was.
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Old 04-08-2014, 03:48 AM   #11
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It's the Cam. Read the thread above Darkman posted. Apparently Comp has quality control issues. The lobes need polished. Stay away from Comp cams, unless you enjoy swapping cams.
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Old 04-08-2014, 03:48 AM
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