str8 pipes and poping noise

[turboninja22]

hello agian everyone.

i was wondering about my exhaust i have a magnaflow muff on the back end and headers its pretty much str8 pipes. i once had a glass pack on there and when i would be in gear and let up off the gas it would pop and make banging noises.

what could cause that?

i have a 86 yota with a glass pack on there and it does that when i release the gas in gear.

on my car i got a magnaflow and it cut it down a little bit but im just wondering what could cause that

is it good?

bad?

thanks.

[nbristow01]

Eardrums perhaps?

[turboninja22]

not yet give me 3o 4o more years yo.

[nbristow01]

Man no kidding

[1972fritz]

a little extra un burnt fuel hitting the hot exhaust pipe and burning.

[ScottNC]

Cut down the Magnaflow? You mean the muffler itself or just the inlet and outlet pipes?

[Deutschman]

when i had my '76 i had this problem really bad. i got pulled over by the cops because they thought it was a gun shot lol. had something to do with my cali smog parts, and my mechanic told me i could cut a belt to what i think was the air pump to stop the poping.

don't know if this helped at all but i thought it might.

[philv]

an exhaust leak will cause popping and backfire on decel.

How well is your exhaust fitted together?

another cause can be a lean fuel mixture.

[Tommy]

That's what it does if you don't have any resonator at front.

Tommy

[turboninja22]

oh i put the magnaflow on after i took my glass pack off and it cut down the noise a little.

and i had a muffler guy put together my exsaust.. so it shouldnt leak he used a gas welder..

[kenkoy214]

Yeah put back resonator. We are not civics to put a straight pipe.. haha

[c.d.iesel]

no matter WHAT you have after the exhaust port -

if you have the tiniest air leak at any of the pipe connections -

you'll FAHRT undPOPP!

lousy clamping, poorly fitting pipe sleeving,

leaking manifold gaskets, emission control air injection

malfunction of check valves-diverter valves, and

more air leaking connections related to that system,

you'll have FAHRTink und more POPPIng

[ScottNC]

Cut down the Magnaflow? You mean the muffler itself or just the inlet and outlet pipes?

Ohhhhhh, cut down on the noise. I'm on the same page now .

A center resonator (which isn't too expensive) will make your car sound even better than it does now. OR you can add another Magnaflow in the resonator position, that's basically what the Ireland Engineering exhaust set up is . Free flowing, but not very loud.

[turboninja22]

thanks guys ill take a closer look at my pipes then

[Arshloch]

I have the actual straight pipe and very happy with it.

Overheating Spark Plugs (incorrect heat range) will also cause popping on deceleration.