Helmholtz resonator pointless on a turbo car? - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Kiske · 12-13-2015, 01:57 PM

As the thread title states. Is paying extra for a helmholtz resonator on a front/midpipe a waste of cash on a turbo car?

Will the frequency cancellation take in effect on the exhaust underboost? Will having it's opening just past the downpipe cause a bit more backpressure negating any gains vs a straight through style resonator?

350matt · 12-13-2015, 02:26 PM

The resonator should still have an beneficial effect as its tuned to cancel out a certain range of frequencies that create 'boom' and drone on this car
and there's no performance disadvantage to having one
unless its badly designed

-Phil · 12-14-2015, 11:15 AM

Wanted to chime in here,

I put the Nameless Helmholtz resonator on my car when i was having a drone issue and it most definitely helped, and it did not cause a performance issue. Something you can also do is put on pipes like this http://synapseengineering.pinnacleca...parent=23&pg=1
and improve the drone issue

12-13-2015, 01:57 PM	#1
Kiske Senior Member Join Date: Jun 2013 Drives: RX-7 / BRZ Location: USA Posts: 2,338 Thanks: 1,023 Thanked 2,499 Times in 1,079 Posts Mentioned: 27 Post(s) Tagged: 0 Thread(s)	Helmholtz resonator pointless on a turbo car? As the thread title states. Is paying extra for a helmholtz resonator on a front/midpipe a waste of cash on a turbo car? Will the frequency cancellation take in effect on the exhaust underboost? Will having it's opening just past the downpipe cause a bit more backpressure negating any gains vs a straight through style resonator? __________________ //2013 World Rally Blue BRZ Limited FBM Turbo--gone //2018 Crystal White Pearl BRZ Ts 2.2l Harrop Supercharged

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12-13-2015, 02:26 PM	#2
350matt Senior Member Join Date: Jul 2013 Drives: toyota mr2/ Toyota GT86 Location: UK Posts: 438 Thanks: 3 Thanked 140 Times in 92 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	The resonator should still have an beneficial effect as its tuned to cancel out a certain range of frequencies that create 'boom' and drone on this car and there's no performance disadvantage to having one unless its badly designed

12-14-2015, 11:15 AM	#3
-Phil Senior Member Join Date: Nov 2015 Drives: Rb25 neo brz Location: NJ Posts: 210 Thanks: 129 Thanked 292 Times in 98 Posts Mentioned: 16 Post(s) Tagged: 5 Thread(s)	Wanted to chime in here, I put the Nameless Helmholtz resonator on my car when i was having a drone issue and it most definitely helped, and it did not cause a performance issue. Something you can also do is put on pipes like this http://synapseengineering.pinnacleca...parent=23&pg=1 and improve the drone issue

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