: Blower whine at part throttle/lower rpm?

05-02-12, 10:04 AM
I hear some blower whine under partial throttle at lower rpm. Boost gauge isn't reading any positive boost. Is that normal? I hear a bit of blower noise on my ZR1 as well at lower rpm/part throttle just cruising around town, but it sounds a little more pronounced on the V. Might be more noticeable with the quiet exhaust?

Cadillac Cust Svc
05-02-12, 10:46 AM
Congratulations on your new CTS-V! Hopefully the community here can give you some better insight into their experiences with their vehicles; if you decide to get it checked out when you go in for service, let us know what you find out.

GM Customer Service

V Wagon
05-02-12, 12:22 PM
Some light blower whine is normal in the 2000-2500ish RPM range. No where near the glorious levels of blower whine present in the old Eatons though, unfortunately.

05-02-12, 01:02 PM
I was 99% sure this was normal due to the similar (but more subtle) sound on the ZR1, but that was the info I needed V Wagon. Just a slight whine in the 2,000-2,500rpm range at partial throttle. It's not bad, just noticeable. Glad to know it's completely normal.

05-02-12, 01:19 PM
If you want to really hear the blower, put an Airaid CAI on it. You'll hear it a WOT then!

05-02-12, 02:31 PM
The AirRaid CAI turns the supercharger whine volume up from about a "4" stock to a "9" instantly. The whine/whistle noise is impossible not to hear.

05-02-12, 03:04 PM
agreed.....AirRaid installed 3weeks ago...love it :D

05-02-12, 08:00 PM
Normal finding. As others say, better with a CAI.

V Wagon
05-05-12, 04:25 PM
Holy crap that airraid piece is a really nice looking cold air intake when installed.