BWR owners, Everyone else get the buzzing sound at 3K Rpm??? - LotusTalk

Shawn C · 10-22-2008, 10:41 AM

Any way to get rid of it? I guess its the butterfly valve...

snuggles1 · 10-22-2008, 10:51 AM

Quote:

Originally Posted by Shawn C

Any way to get rid of it? I guess its the butterfly valve...

I'm hoping the next BWR-related thread isn't called "What's wrong with your BWR. List issues here."

.....

Brikhaus · 10-23-2008, 03:29 AM

Quote:

Originally Posted by Shawn C

Any way to get rid of it? I guess its the butterfly valve...

I have zero issues except for too much fun with my new BWR SC!

chotto · 10-23-2008, 04:37 AM

The only issue that I have had so far is the perma-grin on my face every time I nailed it.

Brikhaus · 10-23-2008, 07:53 AM

Quote:

Originally Posted by chotto

The only issue that I have had so far is the perma-grin on my face every time I nailed it.

Ya baby! but have not got much time left -- weather is getting worse -- hopefully at least another 3 weeks>

Green Hornet · 10-23-2008, 08:49 AM

The only problem I have is waiting for Stage II

Please tell me it will be available this winter...

brokenboy · 10-31-2008, 01:28 PM

I have no buzz at any RPM. I'm guessing you have a loose bolt somewhere.

Does it do it without the car moving? If it does, have someone rev it while you listen to the engine and see if you can find it.

Shawn C · 11-10-2008, 03:28 PM

It really sounds like it is coming from the butterfly valve. When I detach the vacume hose it goes away...!

plastique999 · 11-10-2008, 03:35 PM

No buzzing issues...in fact, my engine is running smoother than it was at stock.
Smoother cam change, strong at idle, smooth powerband ...

LARRY · 11-10-2008, 03:46 PM

Supercharger fun!

Dragon · 12-11-2008, 03:04 AM

I ended up with a buzz at around that RPM. It turned out to be the support bracket that connects the manifold to the transmission. The bolt in to the tranny sheered off and the bracket was vibrating against the transmission. I put in a new bolt and all was good. Let us know what the issue is if you figure it out...

jim-clayton · 12-11-2008, 07:49 AM

Quote:

Originally Posted by Dragon

I ended up with a buzz at around that RPM. It turned out to be the support bracket that connects the manifold to the transmission. The bolt in to the tranny sheered off and the bracket was vibrating against the transmission. I put in a new bolt and all was good. Let us know what the issue is if you figure it out...

Yep, that was Shawn's problem too. We fixed it last week.

Good info. Thanks.

Phantom · 12-11-2008, 09:08 AM

Quote:

Originally Posted by plastique999

No buzzing issues...in fact, my engine is running smoother than it was at stock.
Smoother cam change, strong at idle, smooth powerband ...

+1

Dragon · 12-11-2008, 02:35 PM

Quote:

Originally Posted by jim-clayton

Yep, that was Shawn's problem too. We fixed it last week.

Good info. Thanks.

I had the issue and figured it out back in April or so, sorry I didn't see the post until last night as I could have probably saved you guys some time... It was a pain to try and find the noise as it sounded like it was coming from everywhere... Good deal on getting it sorted though and now there is a post here for any one else who may have the same issue to find.

Gabriel Tyler · 12-11-2008, 02:55 PM

No problems at all with my BWR supercharger. Super reliable so far!

Hobby Racer · 11-08-2009, 04:13 PM

Quote:

Originally Posted by Dragon

I ended up with a buzz at around that RPM. It turned out to be the support bracket that connects the manifold to the transmission. The bolt in to the tranny sheered off and the bracket was vibrating against the transmission. I put in a new bolt and all was good. Let us know what the issue is if you figure it out...

I just had a similar vibration around 3,300 RPM that smoothed out at 4,000 RPM. After reading this thread I checked out the bracket mentioned above and look what I found!

It looks like the TIG weld broke first and then the vibration fatigued the metal and broke the transmission mount tab off.

I welding it back together and the car is fine once again.

BWR people, check those brackets!

10-22-2008, 10:41 AM	#1 (permalink)
Shawn C Registered User Join Date: Jan 2007 Location: Florida Posts: 1,531	BWR owners, Everyone else get the buzzing sound at 3K Rpm??? Any way to get rid of it? I guess its the butterfly valve... __________________ http://www.youtube.com/jerusdc

10-23-2008, 04:37 AM	#4 (permalink)
chotto vv My Awesome Wife vv Join Date: May 2004 Location: San Antonio, TX Posts: 917	The only issue that I have had so far is the perma-grin on my face every time I nailed it. __________________ 2005 SY-BWR Supercharger, Challenger Grill, AreaP single tip exhaust, Ohlin Double Adjustables, RTDbrace, Custom Kirkey 58 Series seats, Schroth 6 pt. harnesses, Multivex mirrors, Odyssey PC625 battery, Micromirror, HID's, V2arms, Sparco removeable steering wheel, 15"/16" Rota's with RA-1's, Pagid RS 4-2 pads, Cup airbox, Saikou Michi catch cans

10-23-2008, 08:49 AM	#6 (permalink)
Green Hornet Zzzzzzz Join Date: Apr 2006 Location: Lancaster, PA Posts: 875	The only problem I have is waiting for Stage II Please tell me it will be available this winter... __________________ Life, Liberty and the Happiness of Pursuit

10-31-2008, 01:28 PM	#7 (permalink)
brokenboy Registered User Join Date: Jun 2008 Location: Seattle, WA Posts: 126	I have no buzz at any RPM. I'm guessing you have a loose bolt somewhere. Does it do it without the car moving? If it does, have someone rev it while you listen to the engine and see if you can find it. __________________ 2007 Ardent Red Elise, track pack, BWR SC 2004 RX-8, 350z muncher 2004 BMW 325i, kiddie hauler

11-10-2008, 03:28 PM	#8 (permalink)
Shawn C Registered User Join Date: Jan 2007 Location: Florida Posts: 1,531	It really sounds like it is coming from the butterfly valve. When I detach the vacume hose it goes away...! __________________ http://www.youtube.com/jerusdc

11-10-2008, 03:35 PM	#9 (permalink)
plastique999 Form and Function Join Date: May 2008 Location: Alta Loma, CA Posts: 3,046	No buzzing issues...in fact, my engine is running smoother than it was at stock. Smoother cam change, strong at idle, smooth powerband ... __________________ www.FaceNBody.com 2005 Lotus Elise: 2bular decat\GT3 exhaust,HID's,turn signal&rear fins delete, CFside scoops, CFbinnacle,CFcenter console,Zoom CF mirror,APR Aero kit,CF 5-elem. diffuser,Exige mesh,Ohlins DA,RTD brace,RAC 'lites,Toyo R888's,HawkHT10's,CO painted calipers,SS lines,Reverie XC CF seat,Reverie CF steering wheel,Schroth Profi II 6 pt harness,shifter re-Enforcer,Manly mounts, Accusump,Moroso pan,BWR key to BWR S/C! Spec Racer Ford #237

11-10-2008, 03:46 PM	#10 (permalink)
LARRY It's a Lotus Join Date: Oct 2005 Location: Beverly Hills, Ca. Posts: 17,162	Supercharger fun! __________________ 2005 Saffron Yellow Elise. Stage II Exhaust. 2007 ProBax seats. "We know they're magical and worth every minute we spend on them. The whole Lotus owners' world is like a secret handshake among people who understand that." (R&T)

12-11-2008, 03:04 AM	#11 (permalink)
Dragon Hydrocarbons Rule Join Date: Sep 2007 Location: Okinawa Japan Posts: 1,747 Images: 2	I ended up with a buzz at around that RPM. It turned out to be the support bracket that connects the manifold to the transmission. The bolt in to the tranny sheered off and the bracket was vibrating against the transmission. I put in a new bolt and all was good. Let us know what the issue is if you figure it out... __________________ 2006 Exige; BWR Supercharger, Adj Sway Bar, Ohlins Suspension, BSK Oil Catch Can, Moroso Oil Pan, ORC Clutch, Custom Exhaust, Black Volk Racing CE28N's w/ Toyo R1R's, 2 piece rotors, Pagid Blue Pads, BSK Wet Carbon (Side Skirts, Front Lip Spoiler, Gas Cap Cover, Center Console, Door Panels), Dry Carbon rear Diffuser, Harness Bar, BWR Gauge Mount, OMP Superquadro steering wheel, LETSLA Short Shifter, V2arms, Rear Tow Link Brace, RLS Battery Bracket, BOE Tow Bar, Stickers.

12-11-2008, 02:55 PM	#15 (permalink)
Gabriel Tyler Registered User Join Date: Sep 2008 Posts: 76	No problems at all with my BWR supercharger. Super reliable so far! __________________ Techno Toy Tuning

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