Results 1 to 20 of 26

Threaded View

  1. #1
    Join Date
    Oct 2014
    DFW, Texas
    Country Flag: United States

    Have you used Helmholtz Resonators? Exhaust Drone

    I have a moderate 2,000rpm drone that I'd like to get rid of. Calculations to cancel 1/4 of the wavelength at that frequency (133Hz) looks to come right around 24".

    While packaging 24" resonators along the side of my 3" exhaust won't be easy, I think I'd like to try it.

    Have you used these style resonators before? What was your end result?
    Click image for larger version. 

Name:	6282f6df-de15-4df0-bde0-557c46294161-800.jpg 
Views:	604 
Size:	12.2 KB 
ID:	164824

    Supporting info

    J-tube Vendor

    Synapes installation

    Grassroots thread

    Calculation details
    1972 Plymouth 'Cuda - Not LS-swapped, 5.7L Hemi [MS3 Gold Box], T56 Magnum 6-speed - 'Cuda Build Page
    1976 Dodge D100 - Warlock
    2016 Subaru WRX - E30 Tune