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  #1  
Old 01-21-2015, 04:55 AM
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Question Exhaust valves open in Track Mode ?

According to the 4th paragraph of this article : 2014 Jeep Grand Cherokee SRT - Anger Issues it says that :
Quote:
....Selecting this (track mode) most aggressive of driving modes changes the damper settings to full firm, opens exhaust flapper valves for a throatier sound....
Is this true ? Do exhaust flapper valves open for a throatier sound in Track Mode ?

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Old 01-21-2015, 08:22 AM
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Not true at all. The exhaust flaps are mechanical not electronic. They open based upon exhaust pressure not due to the SelecTrack selection. That is not to say that in Track Mode the exhaust pressure may be higher which keeps the flaps open more often than not.

I have a feeling in the future we will see electronic valves in the exhaust that will change position and sound based on mode selection.
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Old 01-21-2015, 10:51 AM
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Re: Exhaust valves open in Track Mode ?

100% correct


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Old 01-21-2015, 05:15 PM
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Re: Exhaust valves open in Track Mode ?

I know we're talking apples to oranges, but I do believe if you select track mode on the Hellcat Challenger, it opens the exhaust valves for the throatier sound.
But, I don't have a srt Jeep yet,l so I cannot say.
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Old 01-21-2015, 05:29 PM
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Quote:
Originally Posted by tones_SRT View Post
I know we're talking apples to oranges, but I do believe if you select track mode on the Hellcat Challenger, it opens the exhaust valves for the throatier sound.
Correct I believe they have electronic valves...
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Old 01-24-2015, 03:38 AM
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Re: Exhaust valves open in Track Mode ?

Quote:
Originally Posted by jbjones85 View Post
100% correct


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Are you referring to CLStech's answer or the article ?
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Old 01-24-2015, 08:38 AM
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Re: Exhaust valves open in Track Mode ?

Cls 's post. Sorry thought I quoted.


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Old 01-29-2015, 04:39 AM
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Re: Exhaust valves open in Track Mode ?

Our jeep exhaust "flaps" look like shite, DarkHues, if u take a quick look under your car u will see that they are worth about 2cents, and are spring loaded, and will only open up with increased exhaust pressure. There are zero cables to electronically open up the valves. They are the weirdest things which make little sense to me. I'm certainly no engineer, but they look to be about as helpful as a one legged man in an arse kicking competition.


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Old 01-29-2015, 06:28 AM
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Quote:
Originally Posted by vvM1LESvv View Post
Our jeep exhaust "flaps" look like shite, DarkHues, if u take a quick look under your car u will see that they are worth about 2cents, and are spring loaded, and will only open up with increased exhaust pressure.
Although they are a simple mechanically operated exhaust flap. There has been numerous exhaust professionals who have said they are of superb quality.
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