Quieter then "Quiet mode"?

[vaeevictiss]

I bet the race track was there before the houses too.

We had an issue like that around here. There is a skeet/trap shooting club down by my MILs house in central VA that was there probably 40 years before other houses started going up. Once the nice neghborhoods went up the karens started complaining about the noise from the guns and started a big petition to shut them down. Luckily, the shooting club had support because its the south and all and the petition to shut them down was denied. Turned into a big town hall meeting lol.

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[Mach1Kid96]

That race track sounds like a headache! I have a Steeda H-Pipe on my Mach 1 and quiet mode still is very quiet.

I would also add to possibly check your passenger side exhaust valve. At roughly 10000 miles, when I would put my car into quiet mode, I would notice it was louder than usual. It was extremely prevalent when doing a rev-match downshift. Turns out the wires just before the electrical connector were starting to rub the frame and get frayed and shorting out the valve (very common on the Mach 1's), causing it to operate sporadically. If I would start the car in accessory mode and go through the exhaust modes, you could hear the valve doing weird, random, movements after the drivers side was done moving/getting into position. I was able to disconnect the connector, put some silicone on the outside where the wires were frayed and put some electrical tape for good measure as well. That seemed to fix it!

 

[Turbeau]

That race track sounds like a headache! I have a Steeda H-Pipe on my Mach 1 and quiet mode still is very quiet.

I would also add to possibly check your passenger side exhaust valve. At roughly 10000 miles, when I would put my car into quiet mode, I would notice it was louder than usual. It was extremely prevalent when doing a rev-match downshift. Turns out the wires just before the electrical connector were starting to rub the frame and get frayed and shorting out the valve (very common on the Mach 1's), causing it to operate sporadically. If I would start the car in accessory mode and go through the exhaust modes, you could hear the valve doing weird, random, movements after the drivers side was done moving/getting into position. I was able to disconnect the connector, put some silicone on the outside where the wires were frayed and put some electrical tape for good measure as well. That seemed to fix it!

10-4. I’ll take a look. Thanks

 

[Leigh_bullitt]

All, I'm in a weird dimension where my local racetracks and auto-x events have extremely low noise limits. My local road course is 94db measured 50ft from the rear of the car - They measure halfway down the front straight and again around another high-speed corner as you pass. Other venues are only 92db. No exceptions - you get one warning, second offence is a "PFO"!

Utilizing "quiet mode" kept me just at the limit. However, as the laps progressed, I eclipsed the limit. I know it was me at the time as I had the track to myself (end of day, solo practice laps). Some guy's short shift or lift to avoid detection. I couldn't be bothered.

I've heard of guys plugging one of the tips on the mufflers as they think the valve may be getting forced open on the active exhaust, allowing more noise to escape. Does this sound right?

Has anyone seen this mythical part to make our cars run quieter than quiet mode? FML.

I currently have 100% stock exhaust.

Thanks

Ok so pulling the fuse won’t help.
When you pull the fuse the setting will be always set at track.

quiet mode opens the valves as you get on the gas.

the best way to solve this is to have a tune done for the AE exhaust. It can be set to stay closed all the way up the rpm range.

back pressure won’t be a problem either.

 

[kz]

Ok so pulling the fuse won’t help.
When you pull the fuse the setting will be always set at track.

Read my post again - set it to quiet mode and then pull the fuse. It won't be always set to track because you de-power closed valve. It won't magically open on its own.

 

[Leigh_bullitt]

Read my post again - set it to quiet mode and then pull the fuse. It won't be always set to track because you de-power closed valve. It won't magically open on its own.

No it’s the reverse.
It doesn’t magically close on its own. If you pull of the connector the spring is full open valve in default position.

what do your valves do when you switch off the engine and lock the door ?.
have a look and tell me ?.

all the time their is current to the valves they will close.

 

[kz]

No it’s the reverse.
It doesn’t magically close on its own. If you pull of the connector the spring is full open valve in default position.

what do your valves do when you switch off the engine and lock the door ?.
have a look and tell me ?.

all the time their is current to the valves they will close.

OMFG. Again - pull_the_fuse_when_the_valve_is_closed. Read that slowly. You pull ther fuse when car is running and set to quiet mode - valve is closed. At that point there is no current supplied to the actuator because - duh - circuit is interrupted with fuse out.

I am not sure what about that is not clear ?

 

[Leigh_bullitt]

No it’s the reverse.
It doesn’t magically close on its own. If you pull of the connector the spring is full open valve in default position.

what do your valves do when you switch off the engine and lock the door ?.
have a look and tell me ?.

all the time their is current to the valves they will close.

And why do the valves stay open when the engine is off ?.
because any water moisture can still come out.
Won’t be any good if the valves are closed.

 

[Leigh_bullitt]

OMFG. Again - pull_the_fuse_when_the_valve_is_closed. Read that slowly. You pull ther fuse when car is running and set to quiet mode - valve is closed. At that point there is no current supplied to the actuator because - duh - circuit is interrupted with fuse out.

I am not sure what about that is not clear ?

Have you actually tried this ?.
Wherever you pull the fuse the spring will force the valve open…duh again

 

[Egparson202]

It’s time for someone to test this.

 

[Leigh_bullitt]

It’s time for someone to test this.

Don’t worry fella
I’ve tested this before.

pull the fuse at any point and the valve will open because of the spring

 

[kz]

Have you actually tried this ?.
Wherever you pull the fuse the spring will force the valve open…duh again

Yes - I have. It works.

 

[Egparson202]

Oh boy

 

[Leigh_bullitt]

Yes - I have. It works.

Ok fair enough.

I can safely say it’s not the case for the Bullitt.
pull the fuse closed and valves will be sprung to the fully open position.

 

[kwpony]

Wow ! That's a first for me. Someone with a performance car and they want to make the car "quieter".

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