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Full 3l exhaust popping shooting flames out the tail pipe.

Nezerconezer

Hard-core CEG'er
Joined
Jul 4, 2006
Messages
1,651
Location
PHX AZ
I have an issue with my full 3l. Ever since I installed my Bosal exhaust it makes popping sounds and theres a little fire when I decelerate from 3-2k. It is most frequent when I shift around 3k. If I shift at 4k or 2.5k it does not pop.

Heres an example at about 19 seconds in. Sorry the site is lame but is safe.

http://www.4shared.com/audio/z3NlySUb/outside_2.html

Another example much longer however
http://www.4shared.com/audio/mM7BBXss/Back_home.html

This never happened with my SVT exhaust but as soon as I added the Bosal it has started doing this. Is this bad for the car? What could be causing this?
 
Weird that it would start after the muffler swap...my full 3L swap just recently developed an exhaust leak somewhere because it has a deeper, louder tone and frequently pops on a downshift around 3k as well....sounds sweet though! lol
 
Weird that it would start after the muffler swap...my full 3L swap just recently developed an exhaust leak somewhere because it has a deeper, louder tone and frequently pops on a downshift around 3k as well....sounds sweet though! lol

It's a catback exhaust swap you douche!! :laugh:.

Usually the culprit of flames being shot out the tailpipes is urbunt fuel. I think the popping/gurgling on deceleration is from a free-er flowing exhaust. What's the ID size of the Bosal? Going from a resonated Trubendz Borla to a non-resonated Bassani, The gurgling on deceleration/shifting became much more noticeable. I could be wrong, but that's what I think.

What is your exhaust setup, beside the Bosal? Your car sounds nice.
 
Full 3l with, Msds headers, Weapon r y pipe, Trubenz Test pipe with high flow cat, Bosal exhaust with the silencers removed.


I don't know what size the piping is, I'd imagine its 2.5 all the way through.
 
I think because there is very little restriction now, that's the reason why you're getting the popping/gurgling. Do you have any sound clips of it from the outside? Not necessarily of the P/G, but of the sound of the exhaust. It sounds nice inside.. I wanna hear it outside.
 
Sounds normal to me. You'd really be pooping yourself if you heard unburnt fuel its like 10x louder.
 
Sounds normal to me, too.


Mmmmmm. I love the way 3 liter sounds. Sometimes, when I know no ones watching, or around, I turn my car on, wait till the idle drops, then get out of the car, and sit in between both tail pipes, and just listen to it gurgle. Hhahahahahahahhahahahaha, corny I know. But it sounds soo good.
 
I've wanted to hear the Bosal with headers, sounds mean. I love the sound of the Bosal to be honest, I blip the gas just to hear the gurgling...
 
before i got tuned my car would do that on decelleration, shoot two balls of flame out. when i would run the two step with the MSD, it would throw 1 foot flames or longer out each tailpipe. now that its tuned, it wont do that
 
That 2-step must have been with ignition cut-off or something, right? That's the one that shoots flames out. The fuel cut-off one doesn't do that. Someone can correct me if I'm wrong.
 
um... yah. the MSD ignition was an ignition cut off :shrug: lol

what i meant was it would do it without using the 2 step, and even worse when i did use the 2 step.
 
It might be running rich, but the open exhaust will gurgle and pop. If you haven't done it yet, drive through the I-10 tunnel ;)

Also, search youtube for "contour tunnel". I can't link it since I think the forum rules might have issues with it. But the end of the video has some decent/excessive popping.
 
I haven't listened to clip but by the description, that's exactly what my exhaust does as well. It's funny when you get a big pop when you are next to someone who isn't expecting. I've seen some pretty funny reactions. Also, I hammer it through every tunnel now :)
 
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