sound from engine, like floating valves
Thread Starter
Racer
Joined: Jan 2008
Posts: 457
Likes: 1
From: Lawrenceville Georgia
sound from engine, like floating valves
hey guys,
Has the LS3 had any problems similar to the LS7 with valve springs or any of the valvetrain? The reason I ask is because from around 5800-6500 it sounds like my car is slightly floating the valves. It is not too bad sounding, but for a car with 1200 miles it is not expected. Right now I have an airaid intake, Magnaflow over axle exhaust, and a cooler thermostat. So nothing that would affect the valvetrain. Please give me any suggestions or input.
Thanks,
Shaun
Has the LS3 had any problems similar to the LS7 with valve springs or any of the valvetrain? The reason I ask is because from around 5800-6500 it sounds like my car is slightly floating the valves. It is not too bad sounding, but for a car with 1200 miles it is not expected. Right now I have an airaid intake, Magnaflow over axle exhaust, and a cooler thermostat. So nothing that would affect the valvetrain. Please give me any suggestions or input.
Thanks,
Shaun
Race Director
Joined: Dec 2005
Posts: 11,342
Likes: 965
From: Carlsbad Ca
Does the car feel like it's still pulling @ those rpms? If not, check the carbon stickers in the intake tract. Check your oil level (could be scavenging at the pick up tube.)
There is a lot of valve clatter @ idle on the LS series. The sound comes through the AC vents on the dash usually. (Especially the driver's side by the A piller.) Nothing to be concerned about. Since you have a modded air intake, the clatter usually travels through this path to the cabin. Have to access to a dyno? This could help for an evaluation.
There is a lot of valve clatter @ idle on the LS series. The sound comes through the AC vents on the dash usually. (Especially the driver's side by the A piller.) Nothing to be concerned about. Since you have a modded air intake, the clatter usually travels through this path to the cabin. Have to access to a dyno? This could help for an evaluation.
Thread Starter
Racer
Joined: Jan 2008
Posts: 457
Likes: 1
From: Lawrenceville Georgia
Does the car feel like it's still pulling @ those rpms? If not, check the carbon stickers in the intake tract. Check your oil level (could be scavenging at the pick up tube.)
There is a lot of valve clatter @ idle on the LS series. The sound comes through the AC vents on the dash usually. (Especially the driver's side by the A piller.) Nothing to be concerned about. Since you have a modded air intake, the clatter usually travels through this path to the cabin. Have to access to a dyno? This could help for an evaluation.
There is a lot of valve clatter @ idle on the LS series. The sound comes through the AC vents on the dash usually. (Especially the driver's side by the A piller.) Nothing to be concerned about. Since you have a modded air intake, the clatter usually travels through this path to the cabin. Have to access to a dyno? This could help for an evaluation.
Still has the stock rev limiter, so if thats 6700, then yes. I think that is right though. I do not think I have hit the rev limiter yet though. I normally shift right around 6400 when I am pushing it hard.
Thread Starter
Racer
Joined: Jan 2008
Posts: 457
Likes: 1
From: Lawrenceville Georgia
sorry, the profile is out of date. I do have a 2008 with the LS3. My 2003 Z06 got totaled in May when a dumb 17yr old driver decided to run a red light.
http://photobucket.com/corvette_z06_wreck
http://photobucket.com/corvette_z06_wreck
