Noisy E-Force Blower
Thread Starter
Instructor
Joined: Apr 2011
Posts: 212
Likes: 1
From: Dallas TX
Noisy E-Force Blower
I just installed Edelbbrock's "599 hp." blower on my 2011 GS convertible. Wow is it noisy!
I have a 2.9 l. Whipple on my Shelby GT500, which is lots quieter.
I don't know if the whine is coming thru the blower housing or from the intake. Anyone know?
Sorta diappointing.
I have a 2.9 l. Whipple on my Shelby GT500, which is lots quieter.
I don't know if the whine is coming thru the blower housing or from the intake. Anyone know?
Sorta diappointing.
Last edited by abstruse1; Jun 18, 2011 at 05:30 PM.
Le Mans Master
Joined: Apr 2011
Posts: 7,820
Likes: 411
From: Montreal
St. Jude Donor '13
I wouldn't know where its from but can tell you my eforce isn't noisy. With npp open I don't hear it at all and closed it just makes a nice little muted whine. Just enough to know its there. I actually close the npp sometimes because I like that souind.
Burning Brakes
Joined: Mar 2006
Posts: 790
Likes: 63
From: Ft Worth TX
First of all, make absolutley sure the air bleed is not hitting the back of the blower on the drivers side. It shows how you have to grind it down in the instructions, and you can see the big E-Force thread Motorhead47 posted for details.
As for my blower, it was a bit noisy at first, but it quieted down. For some odd reason, once in a while it gets noisy for a few days, then it subsides again.
As for my blower, it was a bit noisy at first, but it quieted down. For some odd reason, once in a while it gets noisy for a few days, then it subsides again.
Safety Car
Joined: Sep 2007
Posts: 3,502
Likes: 82
I just installed Edelbbrock's "599 hp." blower on my 2011 GS convertible. Wow is it noisy!
I have a 2.9 l. Whipple on my Shelby GT500, which is lots quieter.
I don't know if the whine is coming thru the blower housing or from the intake. Anyone know?
Sorta diappointing.
I have a 2.9 l. Whipple on my Shelby GT500, which is lots quieter.
I don't know if the whine is coming thru the blower housing or from the intake. Anyone know?
Sorta diappointing.
Who did your install? I see you are running at least 3 posts with issues after the install
#1 Noisy blower
#2 Hard starting
#3 Check Ride Control
Hum....
Pro
Joined: Nov 2007
Posts: 605
Likes: 15
From: Rocky Mountains Colorado
My E-Force, from time to time, makes a sound similar to marbles rolling around in a tin can. I called Edelbrock questioning the sound coming from the head unit and was told the sound I was hearing was normal. The person in Tech Support I was talking to indicated the rotors were coated and over time, the rotors would wear in melding together and the noise would become less evident. I believe this to be true in my case. I seem to notice the noise most after a long drive with the head unit all warmed up holding good heat. Initally, just after my install, the sound was very evident at start-up but now, unless I make an effort to listen for the noise, I don't even notice it.
Safety Car
Joined: Sep 2006
Posts: 4,075
Likes: 6
From: Wilmington NC
I had a lot of noise when mine was first installed on my LS2. The head unit was touching the cowl/firewall and transmitting the sound into the cabin. If that was the noise I had to put up with, I was taking it off.
With the help of cthusker (Craig) and motorhead47 (Ken), I was able to diagnose the problem. Giving this information to Edelbrock customer service, they asked if the spacers between the sub frame and mounting nuts were installed. Checking the manual, no such instruction existed. Apparently, this was an update to the original release for an LS2 to prevent the very problem I was having. Installing the spacers corrected the problem.
Again, this was for an LS2, I don't believe the LS3 had the same issue but it wouldn't hurt to drag a small rag between the head unit and your cowl to see if you are in fact touching.
Like Ken mentioned, I now have very little noise with just a mild whine when under boost (which is a great sound).
With the help of cthusker (Craig) and motorhead47 (Ken), I was able to diagnose the problem. Giving this information to Edelbrock customer service, they asked if the spacers between the sub frame and mounting nuts were installed. Checking the manual, no such instruction existed. Apparently, this was an update to the original release for an LS2 to prevent the very problem I was having. Installing the spacers corrected the problem.
Again, this was for an LS2, I don't believe the LS3 had the same issue but it wouldn't hurt to drag a small rag between the head unit and your cowl to see if you are in fact touching.
Like Ken mentioned, I now have very little noise with just a mild whine when under boost (which is a great sound).
Thread Starter
Instructor
Joined: Apr 2011
Posts: 212
Likes: 1
From: Dallas TX
Motorhead, Here's the breakdown:
1) Noise -- yes, possibly an installation issue. I did check clearance between back of blower and firewall and I can't detect any contact (I can get a piece of shirt cardboard in there from left to right), but I can't say whether there's contact when the motor is torqued over.
2) Slow starting -- I had the Z06 pump installed by Dallas Performance (Taylor) and they've done plenty of them. I'm taking it back to Taylor in the morning for diagnosis.
3) DIC messages -- I've noted the Ride Control error message on one other posting. We had the car on my shop lift. It may be that running the car without the wheels on the ground causes this problem, and it won't automatically reset.
Stay tuned.
BTW, I read through the long thread that WallyJ started -- and to which you contributed a lot -- about the E-F blower and found it most instructive. I'm going to work on the IAT issue.
Does your car have MT or automatic?
1) Noise -- yes, possibly an installation issue. I did check clearance between back of blower and firewall and I can't detect any contact (I can get a piece of shirt cardboard in there from left to right), but I can't say whether there's contact when the motor is torqued over.
2) Slow starting -- I had the Z06 pump installed by Dallas Performance (Taylor) and they've done plenty of them. I'm taking it back to Taylor in the morning for diagnosis.
3) DIC messages -- I've noted the Ride Control error message on one other posting. We had the car on my shop lift. It may be that running the car without the wheels on the ground causes this problem, and it won't automatically reset.
Stay tuned.
BTW, I read through the long thread that WallyJ started -- and to which you contributed a lot -- about the E-F blower and found it most instructive. I'm going to work on the IAT issue.
Does your car have MT or automatic?
Last edited by abstruse1; Jun 19, 2011 at 04:23 PM.
Safety Car
Joined: Sep 2007
Posts: 3,502
Likes: 82
Motorhead, Here's the breakdown:
1) Noise -- yes, possibly an installation issue. I did check clearance between back of blower and firewall and I can't detect any contact (I can get a piece of shirt cardboard in there from left to right), but I can't say whether there's contact when the motor is torqued over.
2) Slow starting -- I had the Z06 pump installed by Dallas Performance (Taylor) and they've done plenty of them. I'm taking it back to Taylor in the morning for diagnosis.
3) DIC messages -- I've noted the Ride Control error message on one other posting. We had the car on my shop lift. It may be that running the car without the wheels on the ground causes this problem, and it won't automatically reset.
Stay tuned.
BTW, I read through the long thread that WallyJ started -- and to which you contributed a lot -- about the E-F blower and found it most instructive. I'm going to work on the IAT issue.
Does your car have MT or automatic?
1) Noise -- yes, possibly an installation issue. I did check clearance between back of blower and firewall and I can't detect any contact (I can get a piece of shirt cardboard in there from left to right), but I can't say whether there's contact when the motor is torqued over.
2) Slow starting -- I had the Z06 pump installed by Dallas Performance (Taylor) and they've done plenty of them. I'm taking it back to Taylor in the morning for diagnosis.
3) DIC messages -- I've noted the Ride Control error message on one other posting. We had the car on my shop lift. It may be that running the car without the wheels on the ground causes this problem, and it won't automatically reset.
Stay tuned.
BTW, I read through the long thread that WallyJ started -- and to which you contributed a lot -- about the E-F blower and found it most instructive. I'm going to work on the IAT issue.
Does your car have MT or automatic?
Dallas Performance has an outstanding reputation. It won't take them long to figure out whether you have a fuel pump or pump install issue.
My car is a 6-speed manual...I'm old school...need 3 pedals in my car!
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Thread Starter
Instructor
Joined: Apr 2011
Posts: 212
Likes: 1
From: Dallas TX
I don't think I hear the blower at all at idle. It's under moderate to hard acceleration that it's noisy. It doesn't always have the same tone -- sometimes it's a clear tone with rising pitch as the revs rise, while other times it's a rougher, irregular sound.
I may know more after talking with Taylor tomorrow.
I may know more after talking with Taylor tomorrow.
Pro
Joined: Jul 2010
Posts: 722
Likes: 2
From: Odessa FL
My E-Force, from time to time, makes a sound similar to marbles rolling around in a tin can. I called Edelbrock questioning the sound coming from the head unit and was told the sound I was hearing was normal. The person in Tech Support I was talking to indicated the rotors were coated and over time, the rotors would wear in melding together and the noise would become less evident. I believe this to be true in my case. I seem to notice the noise most after a long drive with the head unit all warmed up holding good heat. Initally, just after my install, the sound was very evident at start-up but now, unless I make an effort to listen for the noise, I don't even notice it.
Thread Starter
Instructor
Joined: Apr 2011
Posts: 212
Likes: 1
From: Dallas TX
I just got a call from Edelbrock regarding my noise complaint. People they talked to say that these blowers on Vettes are a bit noisy. They talked to an installer near me who's happy to take a drive and compare my noise to those they're familiar with.
Stay tuned.
Stay tuned.
Pro
Joined: Dec 2009
Posts: 648
Likes: 0
From: Kalamazoo MI
Mine was just completed 2 days ago (1591 kit) There is a slight wine and rumbling at idle, hood closed you cant hear it, under throttle you can bearly hear it till you give it more tha 15% throttle and above 2250 rpm, the only annoyance I'm having is there is a intermittant metal tinny sound coming from somewhere when the throttle is above 35-40%, Im in the process of trying to pinpoint that down it may be something simple. I did notice however the top of the E-force does touch the soundproofing shield on the hood.
Safety Car
Joined: Sep 2007
Posts: 3,502
Likes: 82
Thread Starter
Instructor
Joined: Apr 2011
Posts: 212
Likes: 1
From: Dallas TX
Aha! Mrgilles, you may be on to something -- the blower contacting the hood!
I had put a layer of Dynamat Extreme under my hood, under the stock hood liner, and found that the hood wouldn't close over the blower. So I left the hood liner out, but the blower lid still could be touching the hood via the Dynamat, transmitting noise. I'll check this out and remove Dynamat wherever they touch. Stay tuned.
I had put a layer of Dynamat Extreme under my hood, under the stock hood liner, and found that the hood wouldn't close over the blower. So I left the hood liner out, but the blower lid still could be touching the hood via the Dynamat, transmitting noise. I'll check this out and remove Dynamat wherever they touch. Stay tuned.
Safety Car
Joined: Sep 2006
Posts: 4,075
Likes: 6
From: Wilmington NC
Pick your poison... T-Trim at idle http://www.youtube.com/watch?v=aNbQy...e_gdata_player
Pro
Joined: Dec 2009
Posts: 648
Likes: 0
From: Kalamazoo MI
Pick your poison... T-Trim at idle http://www.youtube.com/watch?v=aNbQy...e_gdata_player
Safety Car
Joined: Sep 2007
Posts: 3,502
Likes: 82
This is what mine looks like 14 months after the install...sorta hard to see and harder to photograph but I think you can see the impression. Mine is quiet other than the typical "marbles" with the hood open that guys are describing and the subtle whine when under boost.
