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Old 21 March 2005, 09:55 PM
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Cytrax
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Default Exhaust Backfire

I have a 94 impreza wrx import and when I am comming to a stop after just driving at normal speeds the engine backfires and obvioustly gives off a huge bang or two. I have had the exhaust inspected and there are no holes but the sound is still there,

Could this be something to do with the fuel not getting burned off properly, I used to have the same issue when I used to race motocross and the mixtures and ratio was not tuned correctly,

Any feedback would be apreciated
Old 22 March 2005, 10:40 AM
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austen_wrx
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Whats the problem, it sounds perfect You just need to makesure there are flames to accompany the bangs
Old 22 March 2005, 12:41 PM
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andypugh2000
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As above perfect!! this is normal btw
Old 22 March 2005, 01:30 PM
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Neil_G
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Mine used to do that..until I took the VTA dump valve off and returned to the OE one.

Lots of fuel sloshing around may be good for flames/pops/bangs but heard about cases of bore wash which isn't good.
Old 22 March 2005, 09:52 PM
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Cytrax
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Okay thanks I just wanted to make sure that it was normall, I am going to start scaring grannies with it now
Old 22 March 2005, 10:59 PM
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Stiver3
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mate, that is what you wanna hear on a scooby!!, my STi III does exatcly same, H&S full decat etc...minute it gets hot my version 3 cant stop!
Old 22 March 2005, 11:20 PM
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R*** ANT
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MY 98 pops away when it's hot the misses hates it, but it's not her car so who cares.
Old 23 March 2005, 04:30 PM
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C 8HEP
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i have a full h&s decat and dumpvalve. i love the way it pops and bangs, gives that extra 'rally' feeling
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