Sound bites: Exhaust Flap open & closed
Contributors
Joined: Aug 2004
Posts: 1,717
Likes: 0
From: Central Massachusetts
My Ride: Now Driving a Freakin' Prius!
Was...
2004 545i | SMG | White/Black | Sport | NAV | Logic 7 | PDC | Fold-down Seats | Adaptive Headlights | Cold Weather Pkg | Clear-again Bra | Mud Flaps | Bluetooth | Coat Hangar | Aux Input | All Weather Mats | 18"X8.5" BBS RK w/ Michelin Pilot Alpin's (winter) | New steering rack @ 1.2K & 17K miles| Software V.19.1 | B&B Exhaust (vrrrroooooommm!) <---Click.
Originally Posted by GER_545SMG' date='Nov 28 2004, 08:41 PM
Update from flap-only mod.? Had an hour or so to spare on Saturday morning and was already in the neighborhood so swung by an exhaust shop to have them take the twin-can resonator set out, in addition to putting a small weld on the flap actuator (all completely reversible).? I know this thread isn't sounding positive on the resonator topic, but gotta tell you that it sounds great to me.? Wondering if the 14# resonator removal distorts the sound too much.? I'm hearing a lower tone and then at idle you can hear the cylinders.? SMG shifts sound neat, a guy up the street, maybe 45 yards away, was washing his car and looked around quickly as I came through downshifting from third to second.? Sounds almost exactly like my stock '02 X5, maybe a tad deeper and sportier.? I left the larger resonator in on the advice of the shop owner, he wasn't at all familiar with new beemers, but he seemed to think the designed suggested it shaped the sound more than the twin cans.
I went with this mod since CH7576(sp?) had positive raves (the fact that he would have paid 10x is what sold me?
).? Will post sound clip when I get a chance.? Then I think we will have the entire collection ranging from stock, flap only, flap + 1 res, flap + both res, and of course the ultimate solution - Realtyman's ride? 
.
I went with this mod since CH7576(sp?) had positive raves (the fact that he would have paid 10x is what sold me?
).? Will post sound clip when I get a chance.? Then I think we will have the entire collection ranging from stock, flap only, flap + 1 res, flap + both res, and of course the ultimate solution - Realtyman's ride? .[snapback]61802[/snapback]
but I still haven't pulled the resonators... Yet. 
Contributors
Joined: May 2004
Posts: 2,863
Likes: 1
From: SoCal San Diego
My Ride: 545i Sport
Model Year: 2004
Engine: N62
Originally Posted by GER_545SMG' date='Nov 26 2004, 12:04 AM
...
BTW, props to Rizbel on the suggested parts list.? Safety-wiring the turnbuckle brought back memories of my AD days in the Navy, doing bench work (AIMD) on GE-T700's (SH-60).? Not sure if you're AF, or Navy/MC?? With the mod safety-wired I want be causing any FOD...
BTW, props to Rizbel on the suggested parts list.? Safety-wiring the turnbuckle brought back memories of my AD days in the Navy, doing bench work (AIMD) on GE-T700's (SH-60).? Not sure if you're AF, or Navy/MC?? With the mod safety-wired I want be causing any FOD...
[snapback]60957[/snapback]
Nice to hear from a fellow AIMD Technician.
R/ ASC(AW/SW) Joey Belisario LHA5
Thread Starter
Senior Members
Joined: Oct 2004
Posts: 282
Likes: 0
From: Silicon Valley, CA
Originally Posted by Rizbel' date='Nov 28 2004, 07:25 PM
[quote name='GER_545SMG' date='Nov 26 2004, 12:04 AM']...
BTW, props to Rizbel on the suggested parts list.? Safety-wiring the turnbuckle brought back memories of my AD days in the Navy, doing bench work (AIMD) on GE-T700's (SH-60).?? Not sure if you're AF, or Navy/MC?? With the mod safety-wired I want be causing any FOD...
BTW, props to Rizbel on the suggested parts list.? Safety-wiring the turnbuckle brought back memories of my AD days in the Navy, doing bench work (AIMD) on GE-T700's (SH-60).?? Not sure if you're AF, or Navy/MC?? With the mod safety-wired I want be causing any FOD...
[snapback]60957[/snapback]
Nice to hear from a fellow AIMD Technician.
R/ ASC(AW/SW) Joey Belisario LHA5
[snapback]61826[/snapback]
[/quote]Are you based at North Island? That is where I was stationed from 90-92. Got out as AD3, never set foot on a ship! I was AIMD (helo engines) all the way. Miss those run-ups at the test cell! Now if I could get THAT exhaust note out of the 5!
Thread Starter
Senior Members
Joined: Oct 2004
Posts: 282
Likes: 0
From: Silicon Valley, CA
UPDATE:
Made a new sound clip (actually AVI) with the one set of forward resonators (twin can) removed and the exhaust flap open. I think the backpressure balance is about the same as stock with the smaller resonators removed and thee flaps open. No popping or distrotion that I have been able to note.
modified:
http://home.comcast.net/~grobertson22/Flap open and twin can resonators removed.AVI
stock:
http://home.comcast.net/~grobertson2...lap_Closed.AVI
Made a new sound clip (actually AVI) with the one set of forward resonators (twin can) removed and the exhaust flap open. I think the backpressure balance is about the same as stock with the smaller resonators removed and thee flaps open. No popping or distrotion that I have been able to note.
modified:
http://home.comcast.net/~grobertson22/Flap open and twin can resonators removed.AVI
stock:
http://home.comcast.net/~grobertson2...lap_Closed.AVI
Thread Starter
Senior Members
Joined: Oct 2004
Posts: 282
Likes: 0
From: Silicon Valley, CA
Let's try that modified link once more:
http://home.comcast.net/~grobertson22/Flap open and twin can resonators removed.AVI
http://home.comcast.net/~grobertson22/Flap open and twin can resonators removed.AVI
Thread Starter
Senior Members
Joined: Oct 2004
Posts: 282
Likes: 0
From: Silicon Valley, CA
This modified clip should work...sorry
-------------------------
UPDATE:
Made a new sound clip (actually AVI) with the one set of forward resonators (twin can) removed and the exhaust flap open. I think the backpressure balance is about the same as stock with the smaller resonators removed and thee flaps open. No popping or distrotion that I have been able to note.
modified:
http://home.comcast.net/~grobertson22/Flap...ors_removed.AVI
stock:
http://home.comcast.net/~grobertson2...lap_Closed.AVI
-------------------------
UPDATE:
Made a new sound clip (actually AVI) with the one set of forward resonators (twin can) removed and the exhaust flap open. I think the backpressure balance is about the same as stock with the smaller resonators removed and thee flaps open. No popping or distrotion that I have been able to note.
modified:
http://home.comcast.net/~grobertson22/Flap...ors_removed.AVI
stock:
http://home.comcast.net/~grobertson2...lap_Closed.AVI
Thread
Thread Starter
Forum
Replies
Last Post
DavaiLave
E60 Discussion
13
Aug 2, 2022 02:16 AM
sydmaz
E60 Discussion
3
May 16, 2015 10:21 AM
