FVD bypass with PSE
09-27-2012, 11:06 AM
#1
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FVD bypass with PSE
hey all!
Just had the FVD rear muffler bypass system installed on my 997.1 GT3, really like the sound ( although could be louder
)
But a question, the PSE now seems to make no difference to the sound, nothing noticeable at idle or full pelt! I understand that the valve is located upstream ( closer to the manifolds) and therefore should not be affected.... I'm right, aren't I?
I can't hear the valves opening when I have my door open, and it's not because the new bypass making too much noise either...
Any thoughts?
Just had the FVD rear muffler bypass system installed on my 997.1 GT3, really like the sound ( although could be louder
)But a question, the PSE now seems to make no difference to the sound, nothing noticeable at idle or full pelt! I understand that the valve is located upstream ( closer to the manifolds) and therefore should not be affected.... I'm right, aren't I?
I can't hear the valves opening when I have my door open, and it's not because the new bypass making too much noise either...
Any thoughts?
09-27-2012, 01:12 PM
#3
hey all!
Just had the FVD rear muffler bypass system installed on my 997.1 GT3, really like the sound ( although could be louder )
But a question, the PSE now seems to make no difference to the sound, nothing noticeable at idle or full pelt! I understand that the valve is located upstream ( closer to the manifolds) and therefore should not be affected.... I'm right, aren't I?
I can't hear the valves opening when I have my door open, and it's not because the new bypass making too much noise either...
Any thoughts?
Just had the FVD rear muffler bypass system installed on my 997.1 GT3, really like the sound ( although could be louder
)But a question, the PSE now seems to make no difference to the sound, nothing noticeable at idle or full pelt! I understand that the valve is located upstream ( closer to the manifolds) and therefore should not be affected.... I'm right, aren't I?
I can't hear the valves opening when I have my door open, and it's not because the new bypass making too much noise either...
Any thoughts?
09-27-2012, 02:24 PM
#4
Drifting
FVD has a retrofit kits for value exhaust systems...
http://www.fvd.us/us/en/Porsche-0/99...st_System.html
Not sure if this would work for you but Rhonda at FVD is great to work with and knowledgeable if you want to discuss this with them...
http://www.fvd.us/us/en/Porsche-0/99...20Contact.html
BTW, post some pics of your p-car and exhaust system... would be nice to see a p-car from aboard.
http://www.fvd.us/us/en/Porsche-0/99...st_System.html
Not sure if this would work for you but Rhonda at FVD is great to work with and knowledgeable if you want to discuss this with them...
http://www.fvd.us/us/en/Porsche-0/99...20Contact.html
BTW, post some pics of your p-car and exhaust system... would be nice to see a p-car from aboard.
09-27-2012, 11:59 PM
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The valves are in the side mufflers, and if you have done the center muffler bypass then your valves are untouched. You just may not notice it because the difference between open and closed mode was already minimal, but the sound difference is even smaller with the bypass.
09-30-2012, 10:52 AM
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Guys, I'm an idiot!
Either I had not cleaner out my ears or I was too excited and never really checked properly. Now the car has a few days use, and a track day with 25 laps it's incredible!
I know some guys would swear by the SW bypass, and it was a consideration due to cost, but I went with FVD as I know of the quality, and I could not be happier. I won't try and describe the noise now, I will get some videos posted for you guys.
This may be just placebo, but I swear it's slightly quicker at lower revs, could be better exhaust flow with some weight reduction, I don't know.
Cheers
Either I had not cleaner out my ears or I was too excited and never really checked properly. Now the car has a few days use, and a track day with 25 laps it's incredible!
I know some guys would swear by the SW bypass, and it was a consideration due to cost, but I went with FVD as I know of the quality, and I could not be happier. I won't try and describe the noise now, I will get some videos posted for you guys.
This may be just placebo, but I swear it's slightly quicker at lower revs, could be better exhaust flow with some weight reduction, I don't know.
Cheers
