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Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain. |
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07-16-2020, 10:03 AM | #1 |
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Using a muffler as a helmholtz resonator
Morning boys,
My LS1 swapped FRS is too quiet. But the ideal resonator length is impractical without a second bend. So my question is: if I cap one end, will a short fat muffler operate similarly to a much longer resonator when attached at a90 degree angle? Sent from my ONEPLUS A5010 using Tapatalk |
07-16-2020, 10:44 AM | #2 |
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Your LS1 V8 is too quiet?? O_o
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07-16-2020, 10:53 AM | #3 | |
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Quote:
I used an SLP LM1 as a resonator in my custom exhaust, but obviously not as a helmholz chamber. |
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07-16-2020, 10:56 AM | #4 |
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07-16-2020, 11:00 AM | #5 |
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Did the exhaust end under the car? If it did, extend it out the back and test again.
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07-16-2020, 11:08 AM | #6 |
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Can you use one of those crossover X mufflers with the way its routed? Heard a bunch of LS cars using just that, always seemed pretty decent to me.
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07-16-2020, 11:09 AM | #7 |
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07-16-2020, 11:10 AM | #8 | |
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Quote:
Sent from my ONEPLUS A5010 using Tapatalk |
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07-16-2020, 01:55 PM | #9 |
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Huge difference in cabin volume between under the car vs out the back.
I had a 6 inch extension for my old 7m toyota pick up that would cut noise in half in the cab, used it, unless I was racing. The exhaust ran out the side under the door. Flush with body vs 6 inches out. Last edited by solidsnake11; 07-16-2020 at 02:07 PM. |
07-16-2020, 02:19 PM | #10 | |
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Quote:
https://www.jegs.com/i/Dynomax/289/1...SABEgKTrPD_BwE Magnaflow, dynomax, almost everyone makes a muffler casing with a crossover built in. Don't know what your setup under the car looked like. |
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07-16-2020, 02:24 PM | #11 | |
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Quote:
Sent from my ONEPLUS A5010 using Tapatalk |
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