Fancy Tech: How to Get Rid of Exhaust Drone, works great!

geeitup · 02-18-2022, 09:17 AM

Reviving an old thread.
I'm going the Helmholtz route for my FI exhaust. Just wondering if there are any lessons learned out there since this thread was created.
Does it matter where along the exhaust you place the chambers? Do the chambers need to be the same diameter piping as the exhaust? The equation people generally use probably assumes the same diameter pipe, I would guess.

redondoaveb · 02-18-2022, 12:35 PM

Quote:

Originally Posted by geeitup

Reviving an old thread.
I'm going the Helmholtz route for my FI exhaust. Just wondering if there are any lessons learned out there since this thread was created.
Does it matter where along the exhaust you place the chambers? Do the chambers need to be the same diameter piping as the exhaust? The equation people generally use probably assumes the same diameter pipe, I would guess.

Did you check out post #130. Tbatt gives some good info

02-18-2022, 09:17 AM	#1 (permalink)
geeitup Base Member Join Date: Feb 2020 Location: TN Posts: 49 Drives: Nissans Rep Power: 7	Reviving an old thread. I'm going the Helmholtz route for my FI exhaust. Just wondering if there are any lessons learned out there since this thread was created. Does it matter where along the exhaust you place the chambers? Do the chambers need to be the same diameter piping as the exhaust? The equation people generally use probably assumes the same diameter pipe, I would guess. SeeThruHead likes this.

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