Weird type grindy type noise?? Some People have said its Cavitating?? I put this on and instantly have this noise now if this happened to Anyone Your input would be Appreciated..

 

C&L what? Power Tube, Plenum MAF......................

 

Plenum....
Sorry Some people have told Me its due to the walls of the Plenum being thinner??
Sounds like theres little marbles bouncing around inside..

 

Scott: I got a "dieselly" sound after the cold air and pulley, folks say its cavatation. I don't think it's anything to worry about. Are you running a 4 pound lower or did you step up to a 6?

 

Mines measures out to being a 5 so I''l just stay there..
and thanks Wayne what does Cavatation mean??

 

cav·i·ta·tion n. 1. The sudden formation and collapse of low-pressure bubbles in liquids by means of mechanical forces, such as those resulting from rotation of a marine propeller. 2. The pitting of a solid surface. 3. Medicine. The formation of cavities in a body tissue or an organ, especially those formed in the lung as a result of tuberculosis. –cavi·tate v.

 

same here...i have a 2lb lower with all the C&L itake stuff (elbow, upper intake and SBTB, with an open K&N filter (no Box)

noticed noise after C&L Plen. install

Dustin

 

See struck we all agree, nada to worry about. Sure seems louder with the C&L Plenum though.

 

THANKS All Who responded It was scaring the Hell outta Me this gives Me a little more peace of mind.

 

I have an extrude honed plenum I'm putting on. I hope that doesn't make weird noises.

 

When I first drove my 01L after installing the C&L Plenum (and I also have the JDM Phenolic spacer installed) I noticed a strange "humming" type sound - I could almost feel it in the cab - never felt anything like that before. What I found (and others who had the spacer) was that the C & L Plenum rubs against the hood inner bar at the back of the hood. I'm guessing that the engine vibrations were now being directly transferred to the hood and was making this "humming" noise. I cut a "slot" out of that hood inner bar where it was rubbing- humming sound went away. Also on mine - the plenum squeezed the windshield wiper hose flat - so I had to reroute it.

 

Do You have a pic of what You cut out???

 

I forgot to add that sometimes it wont do it.." usually first time I start it in the morning" or when its cold then after it heats up it does it..

 

The reason it doesn't do it on cold startups is because your cold idle rpm is higher. The sound is caused by the Eaton rotors spinning with no load, the bypass open, and only seems to happen at certain rpms. You don't hear it when driving at those rpm's because the other noises mask it out... like that loud exhaust you run

Don't sweat it, it's the sound of a modded Lightning, waiting for the next victim.

 

Thanks to All With Input I was so close to going and yanking it off and putting the old one back on thanks guys