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LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

pro mag 1.6 rrs noisey?

   
Old Apr 19, 2009 | 10:24 PM
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dalynchmob
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From: Gloucester, VA
pro mag 1.6 rrs noisey?
Are these things supposed to be a little noisey? I have the steel ones not the aluminum ones. They are adjusted correctly and not chattering but it sounds like there is a sewing machine under my hood at idle.
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Old Apr 19, 2009 | 10:27 PM
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Stl94LT1
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From: O'Fallon, MO
Yes, they are noisy!!
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Old Apr 19, 2009 | 10:29 PM
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ACE1252
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That's normal for them. Mine do it too.
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Old Apr 19, 2009 | 11:21 PM
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MTBSully
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yep
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Old Apr 20, 2009 | 07:26 AM
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wrd1972
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From: Kantuckee Yo'
They are more quiet on stock cams due to "slower" ramp but tend to make more ticking on higher performance cams with "faster" ramps and more lift. Totally normal.
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Old Apr 20, 2009 | 08:11 AM
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user 647483
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Sewing machine sound = Good

ProMags in mine for 3 years now.
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Old Apr 20, 2009 | 10:07 PM
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marshall93z
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From: Mooresville, NC
Mine make noise around 2400-2600 rpms. Maybe it's the way I have them adjusted... no clue. I just know that's where the noise occurs!
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Old Apr 20, 2009 | 10:57 PM
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dalynchmob
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Thanks for the info fellas i feel better now.
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Old Apr 21, 2009 | 10:01 AM
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Don 97 SS
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From: Robinson, IL
Heck, I kind of like the sound of a slight tick on the ProMags, just as long as it isn't too loud and doesn't trigger knock retard.
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