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Afterburner Exhaust popping

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Old 20 November 2002, 11:36 PM
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scott22
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I've just but a afterburner BB on great sound but why does it pop when lifting foot off accelerator?

Cheers
Old 21 November 2002, 12:22 AM
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TonyBurns
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Scott,
firstly i take it that your car is now fully decatted?
Those pops are made when unburnt fuel ignites on the hot metal of the exhaust (or something like that) and thus you get pops and bangs (and flames )

Tony
Old 21 November 2002, 12:51 AM
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Pavlo
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pops and bangs were always there, except with the factory silencer, they get silenced, strangely enough.

H&S silencer is a straight through design, which just, muffles the overall sound, std has some baffle and resonator sections which will remove some sounds all together.

Paul
Old 21 November 2002, 08:08 AM
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scott22
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I just pop along!!!

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Old 21 November 2002, 09:57 AM
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STi wanna Subaru
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My car is fully de-catted and yet I don't get any pops and bangs
Old 21 November 2002, 08:17 PM
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scott22
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All I've got on mine is an afterburner backbox (Hayward & Scott). I'm thinking of upgrading the rest of the exhaust system. Does anybody have any suggestions what else I could upgrade??
Old 21 November 2002, 08:47 PM
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Pavlo
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the rest of the exhuast system at a guess?

I currently run with H&S downpipe and Backbox, have a resonated decat centre waiting to go on.

Downpipe is worthwhile upgrade, seems to make the car nicer to drive overall.

paul
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