Noise reduction with filter change
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Joined: Feb 2005
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Noise reduction with filter change
Any experience this? Ordered Drag Specialties twin cam filter w/nut by mistake on the Lake Shore site and had a BIG reduction in valve train noise. These are cheaply made in China. Drag says 10 micron paper element. I usually use the HD 5 micron and the K&N occasionally . I switched back a few times to make sure and it's a quieter motor with the Chinese filter. I have 95000 mi on a 95 ,37g build. All I can think of is maybe my lifter bores are worn and the Drag filter flows so much more than stock that it makes a difference. I hate putting junk on my motor but I'm tempted to buy these again because quiet was nice while it lasted. I have the stock filter back on and I miss the cheap piece of crap filter. They also cost the same as the Harley Black,so price isn't a factor.
Big Kahuna HDF Member
Joined: Feb 2006
Posts: 23,881
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From: USA
If you have a 1995 EVO then you should be running a 10 micron filter and NOT the 5 micron HD filter. The 5 micron filter will oil starve the top end on an EVO. If you have a TC 95" build then the 5 micron should work.
Road Master
Joined: Oct 2011
Posts: 799
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From: WyoBraska (Western Nebraska)
Actually (correct me if I'm wrong) the Evos were a thirty micron filter. This was posted here somewhere and I copied it out:
Black 63805-80A
Chrome 63796-77A
Chrome 63813-90T (Extended Capacity)
If you have a Harley filter that is not one on the above, it's not a 30 micron.
72,000 on the '97: 30 micron filters must be doing something right !
Black 63805-80A
Chrome 63796-77A
Chrome 63813-90T (Extended Capacity)
If you have a Harley filter that is not one on the above, it's not a 30 micron.
72,000 on the '97: 30 micron filters must be doing something right !
Seasoned HDF Member
Joined: May 2008
Posts: 21,190
Likes: 12,774
From: South Carolina
Actually (correct me if I'm wrong) the Evos were a thirty micron filter.
Last edited by Dan89FLSTC; Dec 5, 2011 at 08:31 PM.
Big Kahuna HDF Member
Joined: Feb 2006
Posts: 23,881
Likes: 34
From: USA
Look here: https://www.hdforums.com/forum/evo-c...g-the-evo.html
just one sample and I think maybe the EVO filter was 30 microns.
Last edited by KBFXDLI; Dec 6, 2011 at 12:05 AM.
Seasoned HDF Member
Joined: May 2008
Posts: 21,190
Likes: 12,774
From: South Carolina
Many posts on here from guys with EVO's complaining about the 5 micron filter being too restrictive. A 10 micron solved the problem.
Look here: https://www.hdforums.com/forum/evo-c...g-the-evo.html
just one sample and I think maybe the EVO filter was 30 microns.
Look here: https://www.hdforums.com/forum/evo-c...g-the-evo.html
just one sample and I think maybe the EVO filter was 30 microns.
A lot of guys have run full size car oil filters on their old shovelheads (which has the same basic oil system and pump) and never had any scavenge problems.
But we still don`t know what type engine the OP has....
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