View Full Version : 240sx backfire issues
Just installed custom 2.75 4/2/1 header / exhaust no cat or resinator just tannabe racing medilion muffler
can not figure out now I have sudden LOUD backfire every time you let your foot off the gas at mid to full
throtle. Intake is k&n cone right on the throttle body i need sugestions on how to correct backfire.
thnx
doctorstupid
06-17-2005, 08:59 PM
SOunds somewhat normal, most cars will go rich for a split second when the throttle snaps shut, in a straight-through exhaust it can be heard as a pop. Dashpots were introduced to solve this issue, mostly for emissions purposes, by easing the throttle shut the last few degrees. If I were you, I wouldn't worry about it. And if you're super cool, at night you may be able to see a little fire in the pipe, just like in The Fast and The Furious :D
Well the thing is, during shifts when it backfires the motor seems to hesitate at the moment of backfire and it is no pop sounds more like a gunshot, people within 100 ft duck lol.
doctorstupid
06-18-2005, 01:52 AM
Well the thing is, during shifts when it backfires the motor seems to hesitate at the moment of backfire and it is no pop sounds more like a gunshot, people within 100 ft duck lol.
Oh, that's a bit different :D
No ideas at the moment, sorry :)
Two4tyKid
01-15-2006, 04:03 AM
its all natural. I had a 95 SE and every time i took it up through 6 in second then shifted into 3rd it would take about 2-3 seconds then BOOOM, and people are like shhhhiiiiittt! run, hes shooting at us. One nite some peeps in a jeep got really pissed at me cause i did it right next to um. It was fun... Thats all i really can say. Blast on !!!!
its all natural. I had a 95 SE and every time i took it up through 6 in second then shifted into 3rd it would take about 2-3 seconds then BOOOM, and people are like shhhhiiiiittt! run, hes shooting at us. One nite some peeps in a jeep got really pissed at me cause i did it right next to um. It was fun... Thats all i really can say. Blast on !!!!
Dude, read some mother fucking dates. Holy shit.
Forge
01-15-2006, 12:54 PM
If you have your air filter rihgt on your throttle body are you still running your MAF? If not that could be your problem
Hi and welcome to an 8 month old thread.
ryanman
01-15-2006, 11:16 PM
http://img84.imageshack.us/img84/9494/usefullnoobs5ud.jpg
its all natural. I had a 95 SE and every time i took it up through 6 in second then shifted into 3rd it would take about 2-3 seconds then BOOOM, and people are like shhhhiiiiittt! run, hes shooting at us. One nite some peeps in a jeep got really pissed at me cause i did it right next to um. It was fun... Thats all i really can say. Blast on !!!!
Every thing you post is stupid, or just plain wrong. You also like to bring up old threads. Knock it the fuck off.
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