A&A blower install complete, something does'nt sound right....
 

i just completed my blower install, however the headunit itself does not sound right to me? is this the way they are supposed to sound? it almost sounds like a "grinding".

all fluids have been checked. in the vid it may sound like the belt is slipping but it is not.
it has sounded like this the second i started it up for the first time.

details.
a&a v3 T trim 3.8 pulley
dallas performance flip drive 6 rib setup
alky meth kit
aem AFR
aem boost/fuel pressure gauges
the car IS NOT tuned. i have the stock injectors still installed. the car is getting tuned this friday where i will swap the stockers out for the 60lb'ers i have.
first vid. cold start. the car has been sitting for about 3 days without being started

http://s1040.photobucket.com/albums/...IMG_1311-1.mp4



second vid, engine warm.


http://s1040.photobucket.com/albums/...IMG_1313-1.mp4

That 2nd video doesn't sound good at all. The head unit is filled with oil right?

Most of the video sounds normal. I did hear some "different" grinding noises than what I've heard in the past at the end of the first video; 1:06 to 1:08 and 1:45 to 1:50. It is really hard to tell on a recording. I would try to find someone local with the same blower to compare it to. I would be concerned by the noise that I heard though. It might not be the SC it could be a pulley or bearing.

Hopefully some additional people will give there opinion. Does the oil in the SC look good?

This is a brand new unit with 0 miles. Oil is great.

I agree with the above posts about checking the oil. Doesn't sound too bad to me. When I worked for Vortech I got to hear all kinds of blowers. Some V2's and V3's are louder than others, some V1's are loud and some are REALLY loud. I've even heard a quiet YSi. :crazy2:

StealthFRC, I sent the videos to my buddy that works in the Vortech service department, just to be safe. I'll let you know what he says.

If the belt is to tight is sounds nasty, like it is literally grinding the bearing apart inside!

thanks. let me know

and i dont think the belt is to tight. a buddy of mine came over that has a charged z06 and thought the belt was to loose. honestly i think it is perfect. he is used to no flipdrive etc inwhich i have so...
i wish there were more charged vettes around me then maybe we could get this figured out!

i put my ear right up to the blower and it almost sounds like its coming from the compressor side. i took the filter off and looked at it and it looked perfect.

Just heard back from Vortech. They agree it sounds OK, it's just a little louder than most V2/V3's. If it keeps making that noise under load, or gets louder under load then something is wrong with it.
:cheers:

if i rev the car to say around 1200-1500rpm the noise stays constant from what i can gather. anything over those rpm's its hard to distinguish anything really... the engine bay gets pretty loud. im just just curious how i can hear this noise under load?

im going to take your guys word and run the car. if anything worsens i will certainly give you a call.
i appreciate all you help.

I'm no expert but it is a lot louder than the other 4 or 5 I've heard.

screw that. It would drive me nuts.

:iagree: Sent it back, I wouldn't settle for that sh1t.

Noise is vibration, something is wrong with that unit
Got a warranty USE IT!

T-Trims are VERY loud....that sounds normal

I agree with the others. That sounds like most Vortechs to me. Hell, my old S-trim was louder back in 1997. :lol:

Really?

Could some be confusing a T trim with and S trim. The T trim I heard was much louder than the S trim.

Darion

I read this link and it just came to mind. I see ya hadn't had a tune done and figured I would post it up. They make a point about idle being a bit low and SC gear lash. Just a thought.

https://www.corvetteforum.com/c5-for...-sc-sound.html

Hope ya get squared away,

Darion

I had the same question with my P1SC. I was nervous until I started it up for my buddy who runs the same blower. I quote, "They all sound like that. Was the magnetic plug clean when you changed the oil? Yep? Then don't worry about it..."

From the above, looks like all the Vortech guys agree on their blowers.

Good luck with your tune!

Excellent service right there :D

Thanks,Matt

Mine sounds like that too. Once I get above 1000 RPM it turns into a whine. I have had no issues for 8,000 miles and almost a year.

yea im not to happy with the noise and how loud it is. can some of you with t trims post up videos of yours so i can compare? ive been gone the past 14 days on storm clean up (im a linesman.) alot of power outages out here.

Is there a warranty from vortech? If they can give you a 6 month or 1 year warranty on it I would feel better and avoid all the work/labor. I would file it officially with them on record that brand new it was making noise and get an agreement with them on paper signed and dated with details from someone in charge that will be there longterm. I dont hear anything like that from my V2 just a consistent air/whistle. I am not an expert at all and you have many experts on this thread but locigcally Id say if the sound is changing at idle from time to time and its coming from the SC thats not a tight unit.

Best of luck and sorry to hear, I know its happened to all of us with enough modding of cars, there are so many variables and things that can go wrong when gathering aftermarket parts and putting together.

If you don't like a noisy blower you shouldn't have gotten a T Trim... T trims are alot noisier than the Si series.

Well having come from a t trim I can tell you that mine didn't sound like his does. There's more then likely an issue with his blower.

http://www.youtube.com/watch?v=qJjyk...e_gdata_player

Vortech V3 t trim 383 stock ls6 heads A&A blower cam.

wish mine was that quite.... now i really am wondering if something internal isn't right with it. any others with t trims to compare?

and im not complaining about the "blower" noise.... im complaining about the fact it sounds like its shredding itself apart. as long as a&a and vortech agree it is ok then i will run it.... i just want to cover myself IF something did go wrong with it... i dont want to get the "why did you run it if it doesn't sound right" deal if you guys know what i mean... but i am happy with a&a's service so i dont think i have anything to worry about

Man if I were in your shoes it would go back. Period.

check your intake for metal dust

For piece of mind you should just send the unit into Vortech and have them look at it. That way you can move on and enjoy the car without stressing.

Just my 2 cents....

:iagree:

If you cant get in writing what I mentioned above I would absolutely not only send the unit back for inspection but ask for a completely different new unit sent back either way.

If you're really worried about it pull it off and send it to us. We'll drop it off at Vortech and have them check it out. Let me know.

:thumbs: can't beat that deal.

I'd be sending that thing back for sure... No way that sounds normal. Almost sounds like a bad bearing in it... If its a brand new kit, that head unit should be swapped under warranty and let Vortech worry about that racket...

Good deal. A&A is always there to help.

Here are pictures of my T-Trim that ate up a one of the bearing bearing races and sounded just like your video. It got bad really fast and my impeller began to scrape the inlet surface. This was a 6 month old head unit with very low miles on it. I sent it to A&A who took it over to Vortech and fixed it under warranty. No reason given other than a defective race that disintegrated. Hard to see in the top pic but the impeller front case bearing race is completely gone and all the bearings were sitting to one side all touching each other.
http://i144.photobucket.com/albums/r...Picture271.jpg
http://i144.photobucket.com/albums/r...Picture261.jpg

Would these parts then go through the engine?

intercooler will catch most if not all of the debris. ask me how i know...

i will take you up on the offer. the only thing is a have to wait till i have time/space to remove the blower. i cant have the car take up my buddies lift again especially since there will be at least a week in shipping times. ill keep you informed on when i can get this done. i appreciate it.

Sounds good. Give me a call before you box it up and ship it out.

Great service here #1 for sure with A/A.. love the YSI unit here.:yesnod::yesnod: Robert

After 5 months my blower is making noise
 

Mike at TPS says it's normal, it's not a winning noise it's a churping noise at 2000rpm is that normal after 5 months and 3000 miles?

Gary,

The noise that is coming from your setup is NOT the supercharger.. it's the BOV... the noise has nothing to do with the supercharger.

hmmmmmm

Turned out to be the Blow Off Valve was defective. After arguing with the installer that the sound was not how they all sound like for a week he replaced the bov and now it's good to go.

niccccee:crazy:

Stealth,

I have the same blower and it sounds about the same to yours. Yours might be a little louder but its hard to tell from the video. I asked quite a few people about it and I was told that this model blower will sound like that at a low rpm (idle) and will whine out with RPM. Mine turns to a whistle/whine above 1000 RPM. This was explained to me as "Gear Lash" I have over 10K on my blower and have not had an issue. I will try to post a video of mine. Sounds like you sent it back for POM. Let me know what you find out

Dave

I actually never sent it back. It's been working flawlessly for over a year now