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Exhaust question.

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Old 10-26-2006, 04:11 PM
  #51  
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Man, this is awesome... I've always wanted a louder exhaust and all I have to do is keep open a valve? Best of all it's a FREE mod!

Thanks Rudy for the link to this thread from this one: http://forums.e60.net/index.php?showtopic=32795.
Old 10-26-2006, 05:22 PM
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Jiio,

Notice any performance difference before and after? If you like ithe result, I'll put mine back to how it was(before the wife complained about the sound , which I liked anyway ) coz you're da man! Will you let us know, good or bad? Thanks.
Old 10-27-2006, 09:13 AM
  #53  
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My Ride: 2007 E63 AMG | Obsidian Black | Schwarzes Nappa | Black BirdEye Maple | Premium II Package | Electronic Trunk Closer | Parktronic Engine: RPi/Powerchips custom ECU tune, RPi Ram Air Kit (BMC filter, scoops), RennTech Sport exhaust, secondary cats, charcoal and resonator delete, custom AAA x-pipe Exterior: 50% side windows / 35% rear window Formula One Pinnacle Series | Flat AMG hood emblem Suspension: Renntech Lowering Module Wheels/Tires: Radenergie R10, Falken FK452 245/30/20, Yokohama ADVAN Sport 285/25/20 ----------------------------------------- 2005 545i Sport SMG | Ti Grau | Schwarzes Dakota | Anthracite Maple | Logic 7 | Nav Engine: Custom AFE CAI, Superchips ECU remap, Sprint Booster, RDSport Dual Exhaust Conversion with Quad Pipes and X-pipe, 3 resonators deleted, 90mm tips! Exterior: M-Tech Aero kit | M5 Mirrors | M5 Rear Bumper | Trunk Lid Finisher | Vorsteiner decklid spoiler | 50% Formula One Pinnacle Tint Suspension and Brakes: Bilstein PSS9 coilovers, JBT BBK: 16" cross-drilled rotors, 8 piston and 15" cross-drilled rotors, 4 piston Wheels: VIP Modular VR 02 20x9F, 20x10R | Toyo T1R 245/30/20F, 285/25/20R Lights: PIAA 4150K Xtreme White Plus fog lights, AIB v3 MOST IMPORTANT: Hardwired V1; =) ED Date: 4/7/05, Re-delivery date: 5/21/05
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Originally Posted by Rizbel' post='349229' date='Oct 26 2006, 06:22 PM
Jiio,

Notice any performance difference before and after? If you like ithe result, I'll put mine back to how it was(before the wife complained about the sound , which I liked anyway ) coz you're da man! Will you let us know, good or bad? Thanks.
I haven't attempted the mod yet. Will try this weekend.
Old 10-27-2006, 10:50 AM
  #54  
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Originally Posted by vegastrashed' post='349435' date='Oct 27 2006, 12:13 PM
I haven't attempted the mod yet. Will try this weekend.
I tried it a couple of years ago. My advice is do not waste your time. I went from that mod to removing the large resonator. I ended up putting both back and adding a sport exhaust.
Old 10-27-2006, 11:26 AM
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Originally Posted by JDN' post='349453' date='Oct 27 2006, 02:50 PM
I tried it a couple of years ago. My advice is do not waste your time. I went from that mod to removing the large resonator. I ended up putting both back and adding a sport exhaust.
A did this mod and while I got a little little more exhaust gowl I noticed the low end torque was suffering. meaning from accelerating from stop i felt (butt dyno) the engine needed a bit more effort..so i revert back to stock and the car feels strong again in all power bands...
in my opinion after trying left and right with perfomrnace mods in the E60 and reading all of you guys.. WE CAN NOT ACHIEVE ANY PERFORMANCE UNLESS WE HAVE A SOFTWARE PROGRAMMING. The computers in our E60s are too advanced and has zensors in every cojones in this car so it adjusts automatically if it feels more back pressure or more air intake. So all the $$$ in the mods we spend is just for looks and listening... my 2cents.
the only mod that will work is weight so unless I convert my car into a race car, then the weight savings are also limited to spare tire and wheel/tires combination.
ps: See posts of hollywoodtrash and his super expensive exhausts and even Znod with all his testings.
Old 10-27-2006, 12:13 PM
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Man, what a killjoy JDN and Don Juan did! :'(

I don't want anything to negatively affect the low end torque. If I did this mod that would mean that EBMCS03's lil' IS350 will beat the tar outta me...

I like a louder exhaust but not at the expense of performance which would be the case here.
Old 10-27-2006, 12:58 PM
  #57  
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Thanks JDN and Don Juan.
Old 10-27-2006, 02:49 PM
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Originally Posted by sg530' post='32230' date='Sep 8 2004, 08:28 PM
So if the valve isn't affecting the sound, what is it's pupose? Is its cost and plumbing of a vac. line justified?


guys guys guys guys


its an always closed actuator. when there is pressure in the line, it is open....

so, when you disconnect it, it is always gonna be closed...

it is the compete oposite of a 330ci...

you have to find someway to prop it open for good

-jason
Old 10-28-2006, 07:33 PM
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I'm surprised here Znod has not made any comments ... if you check his extensive testing using a tool (GTECH pro or something like that) for time capture performance, perfomrance mods acutally affect your car performance. he had a dinan intake, throthle body, exhaust plus light weigt wheels and his runs were a bit worst in the low end but jsut a tad better on the top end ...

I have modded all my bmws and every mod made a difference but all that stopped with the older versions (ie:E46 adn E39s). this new ones are too advnced and the computer will compensate for the extra air, exhauast flow, etc we add.
I'm hoping for Dinan or a well know local shop here (Active Autowereke) to have a software avaialble. If they have one for the M5 why not ours
Old 03-17-2007, 10:24 AM
  #60  
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I thought I would bump this post back up and ask for your advice.

I had a look at this actuator on my 03 vehicle.

I got my wife to change the revs on the car (whilst in N and stationary)

The valve position did not change at all, from tickover up to 5k!

the question is, should the position change when the car is stationary, or do you need to be moving?

pinching the vac pipe also has no affect.

the actuator arm can be moved by hand, but it does require some effort - do you think the actuator is too stiff?

I am out of my AUC warranty soon and am constructing a list of possible warranty issues.

Many thanks for your input.


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