Does the SR normally backfire? I just got my SR for about a 2 week and its starting backfire a bit. Not a lot but some. Is it something to worry about? Or its normal? Thanks for your help 
SR backfire?
linkwpc
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like nrg said if you are running an atmosphereic bov then the rich period between shifts or when ever the bov opens causes a lack of air that has already been accounted for. the extra fuel in the chambers may not get completly burned. and any unburned fuel or hydrocarbons may ignite in the exhaust if its hot enough, thus producing flames/backfire. as far as i know its no big deal. many modded cars backfire, race cars do it all the time. ive even seen stock RX-8's back fire when they let off the throttle.
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1,986 Posts
i want mine to backfire like that
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yeah if you have an exhaust, it will usually just pop and burble a little bit, I have an open exhaust from the turbo back and it pops all the time when im shifting while driving slow and when i decelerate at low rpms while in gear. If you ever hear a stock SRT-4... they do the exact same thing.
yes Its a small poping sound that happens when I'm shifting from 1st to 2nd or 2nd to 3rd or let the gas go off at 6th gear quickly and my BOV is not vented. But it does not happen all the time. Also I have a 3" cat as well. I do not know about the flames (since I can not see the back while driving) but I will continue to listen to it. Thanks
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576 Posts
why a cat? your engine is already illegal, just make the transformation complete! your car will love you for it
i promise it doesnt sound like a shot gun, cause if it did that all the time 1. you would have a cat any more, 2. the muffler would be gone, and finally the engine would have blown itself up. mine makes those loud pops too on a regular basis and yes it will shoot flames when i ride it hard, but most high performance cars do that no big.
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18,362 Posts
It's normal. Mine did however one time shot a chunk of something out of it that was on fire and shot sparks everywhere... :12dunno
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hey thag, i might have missed the post, but i read your sig and what happened to your car?
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52 Posts
Mine backfires, but I don't have a cat, and I've heard without a cat it will always backfire... ??
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