Is backfiring bad ? - Kawasaki ZX-10R.net
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post #1 of 33 Old 04-10-2008, 09:46 AM Thread Starter
 
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Is backfiring bad ?

After pipes / decat / air filter / exhaust valve open / tre my bike backfires on run down... not really bad but a long series of pops.

I heard the block off plate mod fixes this... but tbh as it offers no gains in power im not to keen on it.

I love the backfiring / popping on engine run down, sounds wicked... but is it bad for engine ?
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post #2 of 33 Old 04-10-2008, 10:17 AM
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No, this popping will not hurt your engine. Just the ears of the guy behind you.
Yes the airbox modification will eliminate that. Several way to tackle that and they prolly can be searched.

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post #3 of 33 Old 04-10-2008, 10:18 AM
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It's basically unburnt fuel in the exhaust igniting. Not really bad for the engine. A custom map on a pc3 could help eliminate this as I've heard doing the block off plates do as well.

Supposedly the bikes always do a backfire from the factory but their exhausts are so much more quieter than aftermarket you dont' really notice it.

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post #4 of 33 Old 04-10-2008, 10:23 AM
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Quote:
Originally Posted by themightymezzo View Post
It's basically unburnt fuel in the exhaust igniting. Not really bad for the engine. A custom map on a pc3 could help eliminate this as I've heard doing the block off plates do as well.

Supposedly the bikes always do a backfire from the factory but their exhausts are so much more quieter than aftermarket you dont' really notice it.

2005 PMR. Full Ti Evo 2, BMC Race, V-Stacks, PC3, IG Module, DJ QS (not installed), 1/5th throw (not installed), -1 +2 with Gold RK Chain, Speedo Healer V4, Removed 2ndaries, Red GiPro, Pilot Powers, Dual H.I.D.s, Brocks brackets and strap, Rear 2" Muzzy Drop, Vortex Rearsets, Scotts Damper, 2 HyperPro Dampers, Puig DB, ASV Levers, Titax Levers, Pazzo Levers, Kill switch (made to look like it's mounted), CA front/rear lights and a owner who adores her...
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post #5 of 33 Old 04-10-2008, 10:30 AM Thread Starter
 
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thanks guys, ill leave it as it is then, as i love the sound :)
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post #6 of 33 Old 04-10-2008, 10:38 AM
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Yea the sound of back firing is pretty freakin cool if I must say so myself. It's like your so proud of your lilttle toy when it does that

Picture PETER from Family Guy, when he sits there laughing and clapping his hands like a retard when he thinks the news caster is his dad. That's me

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post #7 of 33 Old 04-10-2008, 10:47 AM
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post #8 of 33 Old 04-10-2008, 10:50 AM
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If your gonna do a pcIII you wont get the proper air/fuel reading with the smog pump hooked up. The smog mod is really easy, if you want to do the mod here is a great wayhttp://youtube.com/watch?v=RIqSvXDb8GA
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post #9 of 33 Old 04-10-2008, 10:52 AM
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Quote:
Originally Posted by themightymezzo View Post
It's basically unburnt fuel in the exhaust igniting. Not really bad for the engine. A custom map on a pc3 could help eliminate this as I've heard doing the block off plates do as well.

Supposedly the bikes always do a backfire from the factory but their exhausts are so much more quieter than aftermarket you dont' really notice it.
+2...I have the same setup +a PCIII and smog blog off. I have no backfiring at all.

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post #10 of 33 Old 04-10-2008, 10:55 AM
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Originally Posted by or10r View Post
If your gonna do a pcIII you wont get the proper air/fuel reading with the smog pump hooked up. The smog mod is really easy, if you want to do the mod here is a great wayhttp://youtube.com/watch?v=RIqSvXDb8GA
Total overkill...all you need is a small length of 3/8in. fuel line for zx10R smog plates...it costs less than $2 and works as well as a complete block off kit. You only need JB Weld if you can't get a rubber hose between your cover (which I had to do on my VFR).

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