Nissan 370Z Forum - View Single Post

Asus_ · 05-20-2018, 01:52 AM

I'm hoping you guys can shed some light on whats going on with my Z. Recently had the CSC failure so i purchased https://www.zspeedperformance.com/ZS...SPSTG1-OPT.htm /w the ZSpeed CMAK CSC DELETE. Not sure if this stuff is related but its the only thing done to the car recently..so i thought i'd mention it.

Mods:
K&N Intakes
Headers
HFC
Ark Grip Exhaust
Uprev tuned

Edit: i just realized that the whine is something to do with the clutch. In netutral, I put the clutch pedal all the way down, and immediately noticed less idle noise obviously but i gave the car some throttle and that whine is gone, when i let go of the clutch and i blip the throttle that whine is there.. gets a little higher in frequency the higher i rev.

Found a vid on youtube that describes my issue perfectly.

"First rev is with the clutch pedal out, second is with the pedal pressed in"
https://www.youtube.com/watch?v=ne6V8WQ_0Pg

I was driving today and went to park and put the car in neutral... I noticed clicking sounds coming from underneath the car on the driver side.. sounds like how some cars make when you turn them off after being really hot and the pipes are making those tick/click sounds.. the thing is this car has never done this sound so this was new to me seems to happen almost everytime i park after driving (car remaining on).. so i attempted to hit the throttle a little and noticed i'd get a whine sound, i dont seem to hear it while in motion/drive but in neutral i hear it, and its not crazy loud but enough that i can hear it over my ark grip/headers/hfc so its def audible.... I also notice the car doesn't seem to make as much as a raspyness sound at the higher RPM's.. it was a bit raspy high up there but now its gone? so im thinking exhaust leak? I tried to listen to where this whine was coming from but it sounds like its coming from the engine bay but then it also sounds like its coming from under the car near center.. i cant pin it to one small spot, just the car in general... but i know for a fact that i never heard it before when hitting the throttle, it was JUST my exhaust plus some common hissing noise from the ark exhaust but now this whine is annoying.

05-20-2018, 01:52 AM	#1 (permalink)
Asus_ Enthusiast Member Join Date: Sep 2015 Location: neverland. Posts: 348 Drives: 2011 370z T/S Rep Power: 1171	slight supercharger whine on throttle I'm hoping you guys can shed some light on whats going on with my Z. Recently had the CSC failure so i purchased https://www.zspeedperformance.com/ZS...SPSTG1-OPT.htm /w the ZSpeed CMAK CSC DELETE. Not sure if this stuff is related but its the only thing done to the car recently..so i thought i'd mention it. Mods: K&N Intakes Headers HFC Ark Grip Exhaust Uprev tuned Edit: i just realized that the whine is something to do with the clutch. In netutral, I put the clutch pedal all the way down, and immediately noticed less idle noise obviously but i gave the car some throttle and that whine is gone, when i let go of the clutch and i blip the throttle that whine is there.. gets a little higher in frequency the higher i rev. Found a vid on youtube that describes my issue perfectly. "First rev is with the clutch pedal out, second is with the pedal pressed in" https://www.youtube.com/watch?v=ne6V8WQ_0Pg I was driving today and went to park and put the car in neutral... I noticed clicking sounds coming from underneath the car on the driver side.. sounds like how some cars make when you turn them off after being really hot and the pipes are making those tick/click sounds.. the thing is this car has never done this sound so this was new to me seems to happen almost everytime i park after driving (car remaining on).. so i attempted to hit the throttle a little and noticed i'd get a whine sound, i dont seem to hear it while in motion/drive but in neutral i hear it, and its not crazy loud but enough that i can hear it over my ark grip/headers/hfc so its def audible.... I also notice the car doesn't seem to make as much as a raspyness sound at the higher RPM's.. it was a bit raspy high up there but now its gone? so im thinking exhaust leak? I tried to listen to where this whine was coming from but it sounds like its coming from the engine bay but then it also sounds like its coming from under the car near center.. i cant pin it to one small spot, just the car in general... but i know for a fact that i never heard it before when hitting the throttle, it was JUST my exhaust plus some common hissing noise from the ark exhaust but now this whine is annoying. Last edited by Asus_; 05-25-2018 at 01:14 AM.