I have a concern about my 2006 Nissan 350z(DE) every time I reach 3k RPM the gas pedal starts to vibrate along with the clutch and the shift ****. The highest RPM I ever reached is 4K because I'm scared that the engine is going to blow up it sounds like it's at a really high RPM when it's not. Please help I've been looking for hours trying to find why my car is doing this and if it's normal!!

 

Didn't provide that much info to go off of. At idle is your engine rough.If you give it a rev does it come down smoothly? Give a list of mods done to it involving the engine and drive train. Could have something that makes the engine work harder like abnormal resistance . Harmoinc balancer issue.

P.S. change Cat to Car confused me for a little thinking you meant you cat converter.

 

Hard to tell what's going on. I would take it to a shop.

 

Does it happen at rest with the clutch disengaged? Does it happen when the car is moving at let's say 50mph with the clutch disengaged?

If yes to the first, it's something on the engine. If yes to the second, it's something in the drivetrain. Could be something else, too, but you didn't offer much info.

 

Well I don't know a lot about cars so it's hard for me to say what mods it has etc. but it doesn't vibrate at idle or at 50mph the problem is when I depress the clutch when I reach 3.5k RPMS or higher it feels weird I don't know how to explain it. It kinda feels like a shock pen or shock bubble gum if you ever felt one or a phone vibrating in your hand it's that sort of vibration it kind of numbs my foot.

 

It's not normal and you need to have this evaluated by a qualified service technician. --Spike