My noise level test for MHP LTH with X-Pipe
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Joined: Nov 2009
Posts: 690
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From: Montreal, Canada
2021 Taycan Turbo, 2018 Radical SR3, 2021 Lincoln Aviator
My noise level test for MHP LTH with X-Pipe
Hi guys,
Just got my MHP long tub headers installed with an X-Pipe. Since I'm tracking the car, I'm taking decibel level recordings myself.
Here are the results so far (more mods to come):
Measures taken at 15 feet from the rear, reving up to 5000 rpm (trying not to punch the throttle pedal too so smooth reving)
Stock: 89.7
MHP LTH with X-Pipe: 106.4
Overall the car is very loud when accelerating above 3000 rpm (and starting the car) but I'm very far from 125db that other guys recorded on the Dyno.
Next step is installing a silencer and maybe cats. My target is to be below 100 decibels. As it is now I can't race at most race tracks!
Will also get some videos up soon.
I hope the info helps and I'll keep the thread updated.
Just got my MHP long tub headers installed with an X-Pipe. Since I'm tracking the car, I'm taking decibel level recordings myself.
Here are the results so far (more mods to come):
Measures taken at 15 feet from the rear, reving up to 5000 rpm (trying not to punch the throttle pedal too so smooth reving)
Stock: 89.7
MHP LTH with X-Pipe: 106.4
Overall the car is very loud when accelerating above 3000 rpm (and starting the car) but I'm very far from 125db that other guys recorded on the Dyno.
Next step is installing a silencer and maybe cats. My target is to be below 100 decibels. As it is now I can't race at most race tracks!
Will also get some videos up soon.
I hope the info helps and I'll keep the thread updated.
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Joined: Jan 2009
Posts: 2,087
Likes: 6
360 Modena TT
Hi guys,
Just got my MHP long tub headers installed with an X-Pipe. Since I'm tracking the car, I'm taking decibel level recordings myself.
Here are the results so far (more mods to come):
Measures taken at 15 feet from the rear, reving up to 5000 rpm (trying not to punch the throttle pedal too so smooth reving)
Stock: 89.7
MHP LTH with X-Pipe: 106.4
Overall the car is very loud when accelerating above 3000 rpm (and starting the car) but I'm very far from 125db that other guys recorded on the Dyno.
Next step is installing a silencer and maybe cats. My target is to be below 100 decibels. As it is now I can't race at most race tracks!
Will also get some videos up soon.
I hope the info helps and I'll keep the thread updated.
Just got my MHP long tub headers installed with an X-Pipe. Since I'm tracking the car, I'm taking decibel level recordings myself.
Here are the results so far (more mods to come):
Measures taken at 15 feet from the rear, reving up to 5000 rpm (trying not to punch the throttle pedal too so smooth reving)
Stock: 89.7
MHP LTH with X-Pipe: 106.4
Overall the car is very loud when accelerating above 3000 rpm (and starting the car) but I'm very far from 125db that other guys recorded on the Dyno.
Next step is installing a silencer and maybe cats. My target is to be below 100 decibels. As it is now I can't race at most race tracks!
Will also get some videos up soon.
I hope the info helps and I'll keep the thread updated.
Thread Starter
Super Member
Joined: Nov 2009
Posts: 690
Likes: 1
From: Montreal, Canada
2021 Taycan Turbo, 2018 Radical SR3, 2021 Lincoln Aviator
Yes at 106db at 15 feet, any race track (lapping - not drag) near a village will pretty much black flag you if they don't already have a sound check (which I would fail by a long shot)
Most have a 92db limit, what will vary is where and how they calculate it. For example in Canada, Calabogie is 92db at 15 feet, Tremblant is 92db at about 50 feet (which is like 102.5db at 15 feet at 5000rpm) but that is taken on a straight at full throttle so I expect the car will be louder.
Here is a good site I found to calculate DB equivalence depending on the distance. http://www.sengpielaudio.com/calculator-distance.htm
My objective is to bring the car to 100db@4600rpm at 15 feet. I hope it can be done.
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S600, GL450, GLC 43
Happened two years ago at Beaverun
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2009 C63, 2000 ML 430, 1994 Del Sol Vtec
DB limits for Thunderhill, Infineon and Buttonwillow are 103db
Thread Starter
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From: Montreal, Canada
2021 Taycan Turbo, 2018 Radical SR3, 2021 Lincoln Aviator
Thread Starter
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Joined: Nov 2009
Posts: 690
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From: Montreal, Canada
2021 Taycan Turbo, 2018 Radical SR3, 2021 Lincoln Aviator
Just ordered the Akrapovic Titanium slip-on exhaust from ACG San Diego. It will tone down the sound big time!
Will post my results here.
Will post my results here.
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home the point
I know NJMP has been under pressure from Milleville, but last I heard there's was no limit.
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home the point
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c63 amg
Hi guys,
Just got my MHP long tub headers installed with an X-Pipe. Since I'm tracking the car, I'm taking decibel level recordings myself.
Here are the results so far (more mods to come):
Measures taken at 15 feet from the rear, reving up to 5000 rpm (trying not to punch the throttle pedal too so smooth reving)
Stock: 89.7
MHP LTH with X-Pipe: 106.4
Overall the car is very loud when accelerating above 3000 rpm (and starting the car) but I'm very far from 125db that other guys recorded on the Dyno.
Next step is installing a silencer and maybe cats. My target is to be below 100 decibels. As it is now I can't race at most race tracks!
Will also get some videos up soon.
I hope the info helps and I'll keep the thread updated.
Just got my MHP long tub headers installed with an X-Pipe. Since I'm tracking the car, I'm taking decibel level recordings myself.
Here are the results so far (more mods to come):
Measures taken at 15 feet from the rear, reving up to 5000 rpm (trying not to punch the throttle pedal too so smooth reving)
Stock: 89.7
MHP LTH with X-Pipe: 106.4
Overall the car is very loud when accelerating above 3000 rpm (and starting the car) but I'm very far from 125db that other guys recorded on the Dyno.
Next step is installing a silencer and maybe cats. My target is to be below 100 decibels. As it is now I can't race at most race tracks!
Will also get some videos up soon.
I hope the info helps and I'll keep the thread updated.
Thread Starter
Super Member
Joined: Nov 2009
Posts: 690
Likes: 1
From: Montreal, Canada
2021 Taycan Turbo, 2018 Radical SR3, 2021 Lincoln Aviator
I remember that at calabogie, the soundcheck guys would not believe that my exhaust was stock and that loud...
I'll also make sure to post videos of the before and after Akrapovic exhaust.
PS the car is crazy fast with the long tube headers and updated tune vs just tune only, I'm very impressed.
Last edited by chief63; Apr 28, 2012 at 09:53 AM.
