I can't seem to hear my supercharger. Can someone describe the noise that I should hear and when? Is it a high or low pitch? At what RPM is it obvious? I've rev'd my new MCS up to about 4000. The car only has 250 miles on it. Has anyone ever heard of one that wasn't working???
It sounds just like you are going quickly in REVERSE - high pitched gear type sound. It only really shows up at above 3,000 rpm and when you have your foot into it.
I have an aftermarket free flow air clearer and it transmitts the sound a little better.
the other time you can hear the supercharger is when you turn the engine off. if you have no radio on you can hear it spool down.
aka KWKSLVR
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The supercharger whine in mine is very quite, which is a bonus as it's something I'm not too keen on.
The only time I find it is audible is when you put you foot to the floor for some hard acceleration
You'll know if it's not working as you car will move like a slow Cooper
MINI, RX8 and MX5 - Done those............. It's now TTime Unofficial MINI2.com bean counter
I have 775 miles on my S, and I don't hear much either. The two other responses say you can't really hear it until you put your foot in it
The break-in instructions (at least in the US manual) are very, very clear "Absolutely avoid using the full-throttle or kickdown postiion for the accelerator". In other words, keep your foot out of it!
Plus, you are not so exceed 4500 rpm, which I am also doing. After 600 miles I've started running it more in the 3500-4500 range, varying the speed as recommended, although I am often a gear or two lower than I would normally drive.
The manual also says that after 1200 miles "engine and vehicle speed can be gradually increased". So 1200 is not a magic number after which you can suddenly go bonkers.
Breaking-in is like loosening up stiff muscles. You go nice and easy, then push a bit more, then relax, then push still farther, etc.
I figure I will still be exercising some caution at 2000 miles.
It would have the same effect as stuffing a sock in the intake if it weren't working. It's working fine, it's just quiet. I read a post that said the 'noise' is more apparent with an aftermarket intake. You might try one of those if you want more whine from your supercharger.
Mine is SUPER loud. Kinda annoying actually. Then again, I have really good hearing. Blind in my left eye since birth. Left ear compensated and can now hear dog whistles sometimes.
Sounds to me almost like the annoying sound you get with a bad stereo install. That alternator whine coming in thru your speakers. But it's coming from the engine bay.
Could this be the belt problem some have spoke about that causes excess noise??
R
Dark Silver/Black MCS
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Ah...I guess I haven't seen you. I haven't seen an EB/W MCS with stripes yet. I have seen one with an American Flag on the roof. I thought it was a little too much. Mine is very plain--no S/R, 16" aluminum wheels.
So it wasn't my hearing that was wrong. I couldn't really notice is that much. But then again, I'm used to the V-tec scream of my CTR, and that's really loud
I don't think so in my case. Sure it's high pitched, but i can hear it from start up. Acceleration picks it up from 1k on. It's as audible as the exhaust, Can you hear your exhaust?
I hardly think there is something wrong with my car.
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Not much sound while breaking it in! 
2009 Brabus Smart Coupe 
2009 Honda FiT Sports Pkg. 
2007 Honda 250 Reflex 
