valve train noise after headers
Le Mans Master
Joined: Feb 2006
Posts: 5,762
Likes: 4
From: Chandler Arizona
Instructor
Joined: Jun 2006
Posts: 199
Likes: 0
From: Sterling hts. MI
By the way you get those gauges installed?
Race Director
Joined: Jan 2006
Posts: 18,396
Likes: 169
The LS generation of engines are noisy. The newest, LS3, has an accoustic cap, similar to the fuel rail covers, even over the intake manifold in an attempt to quiet them down. GM is attempting to make their cars silent.
Team Owner
Joined: May 2002
Posts: 26,900
Likes: 2
From: Bann Camp & N.Y.C.
St. Jude Donor '08
this may be a long shot, but I had the same problem, after I got LG headers installed, I noticed a valve train noise, I got the car back on the lift, and the noise was coming from the 2 springs that are to hold the pipes behind the cats, they were free hanging, not even holding the pipes, they were just vibrating/buzzing.....
Instructor
Joined: Jun 2006
Posts: 199
Likes: 0
From: Sterling hts. MI
What kind of wideband O2 are you using? I installed the Innovated Motorsport G2 gauge with the lc1 wired it up correctly (I think) but its not working when the car is running. Do I need to install the software and configure some stuff of wires are not on correctly?
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Team Owner
Joined: Oct 2001
Posts: 56,381
Likes: 79
The shock wave of the exhaust hitting the wall of the header. Eric Buell talks about this with his new bike and how the muffler is contoured to prevent the muffler from making noise from the shock waves that hit it.
