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-   -   Afterfire in exhaust--Could Helmholtz pipe cause this? (

trifivefan 08-31-2012 12:06 PM

Afterfire in exhaust--Could Helmholtz pipe cause this?
I have a chevy with a small Weiand blower. Yesterday I experienced an afterfire in the exhaust and wonder what may have caused it. I also recently installed a quarter tuner or Helmholtz pipe to eliminate a drone sound in the mufflers. The quarter tuner was installed on one side of the dual exhaust. I wonder if this could cause afterfire since the quarter tuner was installed near the header and my truck is running on the rich side due to the blower. Anyone had any experience with a Helmholtz pipe and whether they have any connection to afterfires?

bigdog7373 08-31-2012 12:23 PM

running rich can cause it

trifivefan 08-31-2012 03:44 PM

Thanks, Big Dog. So, you think the quarter tuner is not an issue related to the afterfire?

bigdog7373 08-31-2012 05:49 PM

Like this?:
Well some exhausts it will be more apparent. But it running rich is the cause, the exhaust noise is the symptom.

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