a little pop n crackle please

Engines, Transmissions & Final Drive questions and answers

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kazjim
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a little pop n crackle please

Postby kazjim » Thu May 21, 2009 4:39 pm

Hey All, now that i have the lil red thing going like i want, i'd like it to sound the part ...

One thing i miss about my bikes is that great burbling, crackling popping you get on over-run ....

Easy enough to get on the lil MX ?

at the moment 100 % stock (read: Original 1989...) exhaust ...

Cheers
J
If my calculations are correct, when this baby hits eighty-eight miles per hour ... you're gonna see some serious s**t.

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StanTheMan
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a little pop n crackle please

Postby StanTheMan » Thu May 21, 2009 4:43 pm

the crackle pop....isn't that caused by a leaking excaust gasket?

My Combivan was a serioud offender of that......but it just means you car needs looking at.
Satans Ride called F33nix the resurrected NA6

wun911
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a little pop n crackle please

Postby wun911 » Thu May 21, 2009 4:49 pm

just drill holes into the exhaust...
every ounce counts

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bruce
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a little pop n crackle please

Postby bruce » Thu May 21, 2009 4:52 pm

Over run - unburnt fuel burning up in exhaust - rich mixture - aftermarket computer - open exhaust (no cat) - canary.

(That's my choo choo train of thought).

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mx52nv
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a little pop n crackle please

Postby mx52nv » Thu May 21, 2009 6:54 pm

bruce wrote:Over run - unburnt fuel burning up in exhaust - rich mixture - aftermarket computer - open exhaust (no cat).
Correct. Oh okay you twisted my arm ... :mrgreen:

From here.


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Steampunk
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a little pop n crackle please

Postby Steampunk » Thu May 21, 2009 7:40 pm

The only way I can think of on a stock set-up is, as Brucey stated, gut-out the catalytic converter.
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connico
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a little pop n crackle please

Postby connico » Thu May 21, 2009 7:48 pm

I get some pop and crackle sometimes... only very rarely, been trying to get rid of it.. wanna swap? :P

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corners
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a little pop n crackle please

Postby corners » Thu May 21, 2009 10:07 pm

I got over-run when I had a gutted cat as part of a full free flowing exhaust system.

Standard ECU.

Ask 1red5 he followed me one night on nebo....
Steampunk wrote: Oh you've got Ohlins? You must like drugs too!!!

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d-mag
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a little pop n crackle please

Postby d-mag » Thu May 21, 2009 10:30 pm

I just took my cat out and put my race pipe in (in prep for a track day) and the crackle and pop is awesome! Love it.
MX5 Wanted. SE or NC (forced induction preferred :twisted: )

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Okibi
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a little pop n crackle please

Postby Okibi » Fri May 22, 2009 12:53 am

If you had access to a car like this, would you take it back right away? Neither would I.

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PUR157
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a little pop n crackle please

Postby PUR157 » Fri May 22, 2009 1:16 am

"Sounds good... I like it... Very nice..." :mrgreen:
Oneness of Man and Machine
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Jeo
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a little pop n crackle please

Postby Jeo » Fri May 22, 2009 11:03 am

Flange on my headers leaked like there was no tomorrow when I first got it, crackle and popped like all hell. I kinda liked the noise, didn't like the reasons behind it. Had it fixed very shortly after.

GP
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a little pop n crackle please

Postby GP » Fri May 22, 2009 1:15 pm

One thing i miss about my bikes is that great burbling, crackling popping you get on over-run ...

That means it's a leaky exhaust or running too rich etc, Definitley not a good thing
Graham

sirbob
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a little pop n crackle please

Postby sirbob » Thu May 28, 2009 2:02 pm

My NB8A used to snap crackle and pop on overrun with a 2.25in exhaust, Mania CAI, hi-flow metal substrate cat and 4-2-1 extractors. Used to love that sounds under brakes into a corner....

But yes, the only reason it would do it is due to running rich on the standard tune...
Now driving a Grand Vitara whilst waiting for the elusive Black SE

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Charlie Brown
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a little pop n crackle please

Postby Charlie Brown » Mon Jun 01, 2009 3:10 pm

I have the pop now in the NC. :D
Out went the old header and first cat and in the new 4:1 header.

I know people are saying it's running rich but the exhaust pipe colour is now medium grey rather than black so that would indicate to me that it's running a bit lean.

I need to throw it on a dyno and check the output and the air/fuel ratio to find out if is OK or not.
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Wakefield 1:09.13 Eastern Creek GP 1:50.198 Ext 2:17.538 Sth 1:02.9003
Phillip Is 1:58.50 Winton Short 1:10.7 Lakeside 1:05.7711 MDTC 45.20


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