Nissan 370Z Forum - View Single Post - How much fluttering noise is normal vortech

ZStalker505 · 05-08-2023, 10:11 AM

Since I've been driving the car more I'm questioning the loud fluttering that happens a lot while cruising. From searching this seems to be compressor surge and possibly the bpv not set correctly? It happens under light acceleration and sometimes in-between upshifts. These aren't the best videos to hear it but it's all I have for now.
Vortech V3 and Tial QRJ not recirculated btw.
Best video so far
https://youtu.be/si2lSrrxCIk

https://youtu.be/meGqayxjm0M

https://youtu.be/HjTmSG0Nmm0

It sounds very similar to this but only while driving at low rpms like 2200 cruising, more of a whistle https://www.youtube.com/watch?v=KtReC1-rZtA

05-08-2023, 10:11 AM	#1 (permalink)
ZStalker505 Base Member Join Date: Jan 2023 Location: NM Posts: 185 Drives: 14 SC Nismo Rep Power: 2	How much fluttering noise is normal vortech Since I've been driving the car more I'm questioning the loud fluttering that happens a lot while cruising. From searching this seems to be compressor surge and possibly the bpv not set correctly? It happens under light acceleration and sometimes in-between upshifts. These aren't the best videos to hear it but it's all I have for now. Vortech V3 and Tial QRJ not recirculated btw. Best video so far https://youtu.be/si2lSrrxCIk https://youtu.be/meGqayxjm0M https://youtu.be/HjTmSG0Nmm0 It sounds very similar to this but only while driving at low rpms like 2200 cruising, more of a whistle https://www.youtube.com/watch?v=KtReC1-rZtA Last edited by ZStalker505; 05-12-2023 at 09:56 PM.